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Solar Water Heater, Solar Hot Water, My Insolation Level
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My Insolation Level


Haining Xianke Solar Energy Technology Co., Ltd.
Professional China Supplier ( Manufacturer / Exporter / Factory ) of solar water heater, solar hot water heater, solar collector, solar power/energy heater, solar water heating, solar heating project, solar thermal, solar pool heating system, pool solar heater, water heater accessories, evacuated heat pipe, vacuum tubes, tanks and more.

1).Africa
2).Asia & South Pacific
3).Canada
4).Europe
5).South America
6).USA

Insolation Levels (Africa)
Average Insolation (10 year average) kWh/m2/day
Country
State/City
Latitude
Longitude
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year Avg
BF
Ouagadougou
12' 24" N
1' 30" E
5.48
6.43
6.56
6.62
6.53
6.16
5.76
5.48
5.87
6.18
5.83
5.35
6.02
CF
Bangui
18' 32" N
120' 36" E
4.13
4.97
5.99
6.61
6.17
5.53
5.73
4.87
5.07
4.55
4.07
3.81
5.12
CM
Yaounde
3' 48" N
11' 30" W
4.94
5.38
5.16
4.68
4.46
4.42
5.17
5.07
5.03
5.4
5.29
4.83
4.98
DJ
djibouti
11' 33" N
43' 09" E
5.6
5.77
6.59
6.81
6.85
6.87
6.46
6.47
6.56
6.77
6.22
5.55
6.37
DZ
alger
36 ' 50" N
3' E
2.22
2.94
3.87
5
5.88
6.69
7.23
6.48
5.15
3.53
2.43
2.02
4.45
EG
Cairo
29' 35" N
31' 09" E
3.39
4.17
5.24
6.49
7.11
8
7.88
7.4
6.42
5.07
3.86
3.19
5.68
ET
addis abeba
9' 2" N
38' 42" E
5.96
5.8
6.23
6.31
6.11
5.79
5.03
5
5.64
6.31
6.15
5.75
5.84
GH
accra
5' 36` N
0' 12` W
5.65
6.01
5.65
5.33
5
4.49
4.5
4.59
4.67
5.25
5.7
5.55
5.2
GM
gambia
13' 28" N
16' 39" W
5.01
5.93
6.67
6.92
6.72
6.06
5.48
5.09
5.3
5.67
5.36
4.95
5.76
GN
conakry
9' 36" N
13' 36" E
5.81
6.41
6.51
6.22
5.69
5.69
5.09
5.05
5.46
5.87
5.98
5.6
5.78
KE
nairobi
1' 16" S
36' 48" E
6.05
6.24
6.07
5.7
5.42
5.14
4.88
5.09
5.78
6.03
5.48
5.6
5.62
LR
liberia
6' 30" N
9' 30" W
5.43
5.72
5.59
5.31
5.11
4.61
4.25
4.19
4.67
5.13
5.24
5.2
5.03
LY
tarabulus
32' 54" N
13' 11" E
3.1
4.03
5.19
6.48
6.89
7.77
8.11
7.45
6.12
4.58
3.35
2.76
5.48
MA
rabat
32' 32" N
9' 17" W
3.13
3.86
5.09
6.08
6.89
7.31
7.34
6.8
5.69
4.37
3.25
2.82
5.21
ML
bamako
12' 30" N
7' 54" E
5.61
6.35
6.64
6.78
6.42
6.47
5.87
5.65
6.04
6.13
5.85
5.36
6.09
MR
nouakchott
17' 45" N
15' 45" E
5.31
6.21
6.8
7.54
7.57
7.63
7.2
6.9
6.78
6.34
5.49
4.88
6.55
NE
niamey
13' 30" N
2' 12" W
5.42
6.39
6.72
6.79
6.75
6.31
6.07
5.78
6.07
6.16
5.79
5.29
6.12
NG
abuja
9' 12" N
7' 11" E
5.57
6.33
6.22
6.1
5.89
5.47
4.92
4.65
5.12
5.82
5.81
5.42
5.61
SD
al khur-tum
15' 33" N
32' 32" E
5.46
6.19
6.75
7.25
6.85
6.96
6.52
6.35
6.42
6.17
5.66
5.22
6.31
SL
freetown
8' 29" N
13' 14" W
5.19
5.91
6.08
5.47
4.76
4.09
3.6
3.58
4.25
4.84
4.93
4.94
4.8
SN
dakar
14' 38" N
17' 27" W
4.84
5.77
6.56
6.81
6.7
5.7
5.15
5.01
5.13
5.46
5.03
4.63
5.56
SO
muqdisho
2' 02" N
45' 20" E
6.38
6.81
6.71
6.28
5.85
5.45
5.21
5.61
6.15
6.16
6
5.91
6.04
TN
tunis
36' 47.8" N
10' 6.8" E
2.29
3.06
4.09
5.47
6.38
7.16
7.57
6.8
5.33
3.65
2.54
2.08
4.7

Insolation Levels (Asia-Pacific)
Average Insolation (10 year average) kWh/m2/day
Country
City
Latitude
Longitude
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year Avg
AE
Abu Dhabi
24' 28" N
54' 22" E
3.92
4.50
5.22
5.87
7.06
7.33
6.90
6.64
6.39
5.53
4.54
3.79
5.64
AU
Adelaide
34" 55" S
138" 36" E
7.2
6.58
5.18
3.85
2.65
2.23
2.48
3.2
4.46
5.69
6.59
6.74
4.74
AU
Brisbane
27" 99" S
153" 8" E
6.93
6.09
5.44
4.34
3.5
3.29
3.52
4.43
5.62
6.18
6.74
6.93
5.25
AU
Hobart
42" 52" S
147" 19" E
5.97
5.33
4.05
2.73
1.79
1.44
1.68
2.41
3.6
4.78
5.92
6.18
3.82
AU
Melbourne
37" 47" S
144" 58" E
6.78
6.22
4.76
3.4
2.29
1.84
2.04
2.79
3.94
5.27
6.28
6.46
4.34
AU
Perth
31" 57" S
115" 52" E
7.7
6.75
5.41
4.16
3.06
2.67
2.89
3.66
4.76
6.09
7.04
7.76
5.16
AU
Sydney
34" S
151" 0" E
6.34
5.68
4.87
3.6
2.74
2.5
2.67
3.53
4.67
5.61
6.32
6.6
4.59
BD
Dhaka
23' 42" N
90' 22" E
4.44
5.08
5.87
6.06
5.50
4.41
4.09
4.37
4.17
4.50
4.37
4.13
4.75
CN
Beijing
39' 55" N
116' 25" E
2.37
2.92
3.58
5.61
4.83
5.68
5.42
4.49
4.25
3.20
2.66
2.04
3.92
CN
Nanjing
32' 03" N
118' 53" E
2.04
2.22
2.65
4.50
3.84
4.47
4.93
4.50
3.67
3.02
2.88
2.08
3.40
CN
Shanghai
31' 10" N
121' 28" E
2.29
2.63
3.07
4.54
4.38
4.59
5.52
5.23
4.03
3.39
2.97
2.38
4.01
CN
Hongkong
22' 18" N
114' 10" E
2.59
2.56
3.06
3.93
4.13
4.74
5.81
4.95
4.68
4.05
3.56
2.93
4.18
ID
Jakarta
6' 11" S
106' 50" E
4.15
4.59
5.00
4.94
4.88
4.71
5.09
5.46
5.66
5.36
4.76
4.47
5.03
IL
Tel Aviv
32' 05" N
34' 46" E
2.78
3.5
4.73
6.03
6.86
7.87
7.81
7.22
6.19
4.63
3.32
2.62
5.73
IR
Tabriz
38' 48" N
46' 18" E
1.79
2.40
3.37
4.58
5.54
6.71
6.97
6.06
5.20
3.26
2.14
1.56
4.13
IR
Tehran
35' 40" N
51' 26" E
2.23
2.84
3.72
5.12
5.99
7.32
7.20
6.41
5.59
3.90
2.61
2.02
4.58
IR
Mashhad
36' 16" N
59' 34" E
2.22
2.97
3.88
5.21
6.29
7.49
7.41
6.78
5.70
4.13
2.78
2.06
4.74
IR
Bandar" Abbas
27' 15" N
56' 15" E
3.63
4.43
5.14
6.29
7.43
7.96
7.41
6.97
6.58
5.51
4.29
3.37
5.75
IN
New Delhi
28' N
77" E
3.68
4.47
5.50
6.60
7.08
6.55
5.01
4.62
5.11
4.99
4.15
3.42
5.10
IN
Bombay
18' 33" N
72' 32" E
5.22
6.03
6.66
7.05
6.77
4.59
3.54
3.40
4.72
5.39
5.15
4.80
5.28
IN
Bangalore
12' 57" N
77' 37" E
5.00
5.90
6.44
6.42
6.13
4.76
4.48
4.59
4.98
4.68
4.34
4.40
5.18
IQ
Baghdad
33' 20" N
44' 24" E
2.79
3.64
4.59
5.76
6.83
8.10
7.97
7.29
6.25
4.44
3.04
2.52
5.27
JO
Amman
31' 57" N
35' 57" E
2.93
3.67
4.83
6.04
6.88
7.91
7.86
7.27
6.25
4.71
3.47
2.76
5.80
JP
Tokyo
35' 45" N
139' 38" E
2.31
2.99
3.70
4.90
5.07
4.47
4.88
5.42
3.82
2.98
2.50
2.23
4.00
KH
Phnom penh
11' 33" N
104' 51" E
5.27
5.78
6.02
5.76
5.09
4.30
4.55
4.07
4.34
4.41
4.88
5.03
4.85
KP
P" yongyang
39' N
125' 18" E
2.50
3.35
4.50
5.17
5.60
5.35
4.51
4.63
4.22
3.51
2.46
2.09
4.20
KR
Seoul
37' 31" N
127' E
2.62
3.40
4.29
5.24
5.63
5.15
4.26
4.55
3.99
3.64
2.60
2.24
4.16
LA
Vientiane
18' 07" N
102' 35" E
4.30
4.94
5.52
5.74
5.11
4.24
4.22
4.19
4.61
4.26
4.21
4.24
4.63
LB
Beirut
33' 54N
35' 28E
2.64
3.4
4.63
6.03
6.96
7.9
7.84
7.19
6.13
4.5
3.14
2.44
5.68
MM
Yangon
16' 47" N
96' 09" E
5.40
6.06
6.65
6.69
5.14
3.24
3.30
2.99
4.12
4.51
4.82
5.05
4.65
MN
Ulaanbaatar
47' 55" N
106' 54" E
1.79
2.77
4.24
5.53
6.26
6.15
5.55
4.88
4.17
3.00
1.82
1.40
4.30
MY
Kuala Lumpur
3' 07" N
101' 42" E
4.54
5.27
5.14
5.05
4.80
4.98
4.91
4.78
4.54
4.51
4.23
4.07
4.70
NZ
Auckland
36" 52" S
174" 45" E
6.37
5.9
4.71
3.43
2.44
2
2.25
2.95
4.13
5.23
6.05
6.56
4.34
NZ
Christchurch
43" 32s
172" 37e
5.9
4.95
3.86
2.75
1.72
1.31
1.47
2.15
3.3
4.34
5.43
5.64
3.57
NZ
Wellington
41" 17" S
174" 47" E
6.27
5.31
4.17
3
1.95
1.54
1.74
2.46
3.66
4.7
5.73
6.01
3.88
OM
Mascat
23' 37" N
58' 37" E
4.34
5.00
5.85
6.69
7.54
7.56
6.91
6.71
6.55
5.93
4.95
4.23
6.29
PH
Cebu
10' 19" N
123' 54" E
4.53
5.15
5.83
6.25
5.90
4.83
4.76
4.93
4.96
4.75
4.49
4.44
5.07
PH
Manila
14' 37" N
120' 58" E
4.82
5.62
6.42
6.75
6.19
4.96
4.94
4.41
4.86
4.63
4.59
4.50
5.22
SA
Riyadh
24' 39" N
46' 42" E
4.03
4.92
5.56
6.24
7.27
7.99
7.86
7.46
6.83
5.80
4.58
3.82
6.03
SG
Singapore City
1' N
103' E
4.43
5.52
5.05
5.05
4.62
4.66
4.51
4.61
4.49
4.50
3.98
3.93
4.61
TH
Bang Kok
13' 45" N
100' 30" E
4.42
4.65
4.84
5.03
4.75
3.77
4.22
3.46
3.63
3.89
4.16
4.40
4.27
TH
Chiang Mai
18' N
99' E
4.79
5.51
6.11
6.29
5.53
4.44
4.16
4.18
4.50
4.34
4.28
4.48
4.88
TR
Ankara
39' 57" N
32' 53" E
1.77
2.38
3.69
4.54
5.53
6.63
6.99
6.55
5.22
3.24
1.99
1.51
4.17
VN
Hanoi
21' N
105' 54" E
2.52
2.94
3.81
4.34
4.66
4.51
4.62
4.62
4.57
3.64
3.29
3.17
3.89
YE
Aden
12" 50" N
45' 02" E
5.45
5.78
6.52
6.48
6.71
6.72
6.33
6.33
6.41
6.54
5.99
5.39
6.22

Insolation Levels (Canada)
Average Insolation (10 year average) kWh/m2/day
State
City
Latitude
Longitude
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year Avg
AB
Edmonton
53o 34' N
113o 31' W
1.45
2.36
3.41
4.25
4.91
5.42
5.55
4.76
3.52
2.18
1.43
1.21
3.37
BC
Victoria
48o 25' N
123o 19' W
1
1.82
2.93
4.01
5.13
5.54
5.85
5.28
3.88
2.17
1.11
0.86
3.29
MB
Winnipeg
49o 54' N
97o 14' W
1.21
2.08
3.27
4.55
5.54
5.8
5,85
4.84
3.32
2.21
1.33
1.02
3.41
NL
St. Johns
45o 19' N
65o 53' W
1.56
2.27
3.48
4.19
4.76
5.05
5.05
4.54
3.53
2.29
1.43
1.27
3.28
NS
Halifax
44o 39' N
63o 34' W
1.56
2.31
3.46
4.09
4.82
5.27
5.41
4.86
3.92
2.54
1.53
1.3
3.42
ON
Toronto
43o 41' N
79o 38' W
1.44
2.27
3.19
4.13
5.15
5.83
5.67
4.82
3.66
2.47
1.48
1.20
3.44
QC
Montreal
45o 28' N
73o 45' W
1.45
2.36
3.41
4.25
4.91
5.42
5.55
4.76
3.52
2.18
1.43
1.21
3.37
SK
Regina
45o 19' N
65o 53' W
1.14
1.96
3.02
4.69
5.48
5.79
6.14
4.96
3.42
2.29
1.30
0.95
3.42

Insolation Levels (Europe)
Average Insolation (10 year average) kWh/m2/day
Country
State/City
Latitude
Longitude
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year Avg
AT
Vienna
48' 13" N
16' 22" E
1.10
1.81
2.80
3.76
4.76
5.12
5.72
4.98
3.68
2.15
1.28
0.93
3.52
BE
Bruxelles
50' 45" N
4' 30" E
0.74
1.31
2.29
3.68
4.67
4.48
4.82
4.20
2.86
1.73
0.92
0.56
3.02
BG
Sofija
42' 40" N
23' 18" E
1.5
2.04
2.97
4.05
5
5.8
6.29
5.68
4.46
2.75
1.62
1.27
3.99
CY
Limassol
34' 40" N
33' 03" E
2.52
3.26
4.54
6.00
6.85
7.81
7.80
7.18
6.11
4.43
3.02
2.31
5.61
CR
Zagreb
45' 29" N
15' 35" E
1.30
2.00
2.94
3.91
5.03
5.37
5.93
5.19
3.94
2.39
1.39
1.09
3.72
DE
Hamburg
53' 33" N
9' 59" E
0.54
1.11
2.09
3.68
4.86
4.47
4.47
3.89
2.59
1.48
0.69
0.40
2.52
DE
Munich
48' 05" N
11' 23" E
1.05
1.80
2.82
3.95
4.84
4.65
5.14
4.46
3.20
2.00
1.02
0.79
2.98
ES
Madrid
40' 25" N
3' 41" W
1.93
2.75
4.09
4.83
5.85
6.52
7.11
6.30
4.91
3.07
1.97
1.59
4.62
ES
Malaga
36' 42" N
4' 42" W
2.52
3.24
4.51
5.40
6.35
7.09
7.64
6.81
5.39
3.70
2.58
2.14
5.16
ES
Barcelona
41' 24" N
2' 9" E
1.89
2.71
3.97
4.99
5.82
6.56
7.01
6.07
4.72
3.11
2.04
1.70
4.60
ES
Alicante
38' 40" N
0' 30" W
2.23
3.02
4.26
5.39
6.13
6.89
7.34
6.53
5.11
3.45
2.34
1.94
4.94
FX
Lyon
45' 46" N
4' 50" E
1.26
1.97
3.02
4.08
4.97
5.40
6.03
5.23
3.93
2.27
1.43
1.08
3.74
FX
Paris
48' 52" N
2' 20" E
0.89
1.62
2.62
3.95
4.90
4.83
5.35
4.61
3.33
2.00
1.12
0.72
3.34
FX
Toulouse
43' 37" N
1' 26" E
1.39
2.14
3.19
4.03
4.82
5.16
5.86
5.07
4.09
2.48
1.58
1.25
3.75
GR
Athens
38' N
23' 43" E
2.00
2.52
3.67
5.21
6.38
7.52
7.61
6.91
5.57
3.50
2.16
1.63
4.56
HU
Budapest
47' 30" N
19' 3" E
1.00
1.71
2.76
3.90
5.03
5.30
5.62
4.84
3.57
2.24
1.17
0.88
3.17
IE
Dublin
53' 20" N
6' 15" W
0.56
1.07
1.97
3.32
4.40
4.30
4.30
3.40
2.69
1.43
0.77
0.43
2.39
IT
Milan
45' 28" N
9' 12" E
1.27
1.89
2.91
3.65
4.84
5.36
5.97
5.21
3.91
2.40
1.42
1.08
3.33
IT
Rome
41' 53" N
12' 30" E
1.78
2.52
3.71
4.87
5.98
6.84
7.08
6.34
4.83
3.08
1.98
1.56
4.21
NL
Amsterdam
52' 21" N
4' 54" E
0.61
1.21
2.27
3.76
4.88
4.73
4.78
4.13
2.80
1.60
0.78
0.45
2.67
NO
Oslo
59' 56" N
10' 44" E
0.3
0.87
1.68
3.12
4.65
4.84
4.59
3.36
2.22
1.02
0.42
0.19
2.27
RO
Bucharest
44' 26" N
26' 06" E
1.36
1.94
2.91
3.94
5.03
5.6
6.15
5.53
4.15
2.59
1.37
1.1
3.47
PT
Lisboa
38' 42" N
9' 11" W
2.27
2.99
4.3
5.15
6.13
6.46
6.89
6.33
5.11
3.44
2.27
1.84
4.43
PT
Oviedo
43' 21" N
5' 50" W
1.67
2.29
3.44
4.59
5.56
6.32
6.86
5.95
4.51
2.71
1.77
1.46
3.93
UA
Odessa
46' 30" N
30' 46" E
1.08
1.78
2.68
3.87
5.4
5.7
6.39
5.63
3.96
2.45
1.06
0.87
3.41
UK
Edinburgh
55' 55" N
3" 10" W
0.44
0.94
1.86
3.18
4.33
4.34
4.13
3.41
2.43
1.2
0.59
0.32
2.26
UK
London
51' 32" N
0' 5" W
0.67
1.26
2.22
3.48
4.54
4.51
4.74
4.01
2.86
1.65
0.89
0.52
2.61
SZ
Bern
46' 57" N
7' 26" E
1.1
1.77
2.74
3.6
4.7
5.07
5.68
4.95
3.66
2.18
1.26
0.92
3.14
SZ
Lausanne
46' 32" N
6' 39" E
1.10
1.81
2.80
3.76
4.76
5.12
5.72
4.98
3.68
2.15
1.28
0.93
3.17
YU
Beograd
44' 50" N
20' 30" E
1.29
1.89
2.92
3.86
4.88
5.45
6
5.3
4.05
2.5
1.4
1.11
3.39

Insolation Levels (Sth America)
Average Insolation (10 year average) kWh/m2/day
Country State/City Latitude Longitude Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Avg
Belize Belize City 17º 30' N 88º 11' W 3.73 4.59 5.45 5.97 5.75 5.19 5.03 5.16 4.82 4.50 3.99 3.54 4.81
Costa Rica San Jose 09º 59' N 84º 04' W 6.09 6.74 7.23 6.64 5.26 5.00 4.94 4.84 4.76 4.63 4.63 5.30 5.51
El Salvador San Salvador 13º 40' N 89º 10' W 5.58 6.23 6.68 6.52 5.95 5.74 6.22 6.18 5.49 5.61 5.42 5.30 5.91
Guatemala Guatemala City 14º 37' N 90º 31' W 4.93 5.48 5.90 5.81 5.35 4.91 5.27 5.12 4.59 4.68 4.65 4.62 5.11
Honduras Tegucigalpa 14º 05' N 87º 14' W 4.26 5.08 5.84 5.99 5.54 5.35 5.34 5.47 5.04 4.43 4.15 3.91 5.03
Mexico Acapulco 16º 50' N 99º 54' W 5.46 6.30 7.17 7.41 7.06 6.16 6.29 6.20 5.45 5.94 5.56 5.19 6.18
Mexico Cancun 21º 10' N 86º 50' W 4.16 5.14 6.04 6.86 6.79 6.47 6.63 6.65 5.86 5.19 4.51 3.90 5.68
Mexico Chihuahua 28º 39' N 106º 05' W 3.41 4.34 5.63 6.43 6.88 6.53 5.69 5.30 5.14 4.65 3.89 3.26 5.10
Mexico Guadalajara 20º 40' N 103º 40' W 4.24 5.18 6.21 6.71 6.89 6.00 5.23 5.41 5.14 5.11 4.79 4.13 5.42
Mexico La Paz 24º 09' N 110º 18' W 3.73 4.67 5.75 6.63 7.16 7.07 6.40 6.06 5.52 4.93 4.11 3.51 5.46
Mexico Mexico City 19º 26' N 99º 08' W 4.34 5.07 5.89 5.95 5.90 5.03 4.76 4.86 4.57 4.73 4.57 4.29 5.00
Mexico Monterrey 25º 40' N 100º 23' W 3.33 4.20 5.40 5.71 6.06 5.89 5.59 5.44 4.76 4.49 3.90 3.23 4.83
Mexico Oaxaca 17º 04' N 96º 43' W 4.36 4.99 5.74 6.08 5.86 5.01 4.92 4.95 4.43 4.63 4.38 4.08 4.95
Mexico Puerto Vallarta 20º 39' N 105º 14' W 4.20 5.29 6.39 7.12 7.51 6.96 6.17 5.99 5.32 5.30 4.82 4.00 5.76
Mexico Tijuana 32º 32' N 117º 01' W 3.32 4.15 5.23 6.37 6.61 6.43 6.46 6.31 5.40 4.26 3.65 3.08 5.11
Mexico Veracruz 19º 10' N 96º 07' W 3.55 4.13 4.86 5.35 5.40 5.12 5.15 5.17 4.66 4.45 3.92 3.43 4.60
Nicaragua Managua 12º 10' N 86º 15' W 5.34 5.89 6.59 6.54 5.83 5.67 5.70 5.69 5.43 5.39 5.15 5.05 5.69
Panama Panama City 08º 58' N 79º 33' W 5.27 5.92 6.23 5.75 4.78 4.11 4.16 4.15 4.24 3.99 4.23 4.66 4.79
Cuba Havana 23º 09' N 82º 21' W 4.09 4.97 5.92 7.06 7.15 7.10 6.90 6.86 6.10 5.12 4.26 3.74 5.77
Jamaica Kingston 17º 58' N 76º 48' W 4.92 5.67 6.45 6.80 6.50 6.82 6.84 6.61 6.23 5.45 4.76 4.58 5.97
Puerto Rico San Juan 18º 15' N 66º 30' W 4.26 4.90 5.70 6.09 5.89 6.09 6.08 5.78 5.26 4.80 4.36 4.15 5.28
Martinique Fort de France 14º 37' N 61º 05' W 5.35 5.98 6.59 6.94 6.70 6.42 6.49 6.45 6.03 5.87 5.15 5.15 6.09
Dominican Rep. Santiago 18º 29' N 69º 54' W 3.89 4.46 5.24 5.53 5.52 5.48 5.41 5.13 4.80 4.46 4.03 3.78 4.81
Argentina Buenos Aires 34º 36' S 58º 23' W 6.44 5.67 4.53 3.53 2.74 2.04 2.31 3.27 4.23 5.12 6.36 6.44 4.39
Argentina Cordoba 31º 24' S 64º 12' W 7.07 6.30 4.90 3.87 3.01 2.65 2.79 3.63 4.76 5.93 6.63 6.96 4.88
Argentina Rio Gallegos 51º 37' S 69º 13' W 5.47 4.63 3.32 2.02 1.07 0.71 0.81 1.61 2.87 4.26 5.53 5.79 3.17
Bolivia La Paz 16º 29' S 68º 08' W 5.30 5.57 5.16 5.01 4.78 4.37 4.51 4.96 5.66 5.98 6.15 5.92 5.28
Bolivia Santa Cruz 17º 47' S 63º 10' W 4.57 4.90 4.57 3.92 3.44 3.25 3.44 4.01 4.45 5.00 5.21 5.01 4.31
Bolivia Sucre 19º 02' S 65º 15' W 1.67 2.29 3.47 4.58 5.59 6.37 6.86 5.97 4.51 2.73 1.77 1.46 3.94
Brazil Belem 01º 27' S 48º 29' W 4.54 4.34 4.26 4.46 4.75 4.99 5.27 5.50 5.85 5.79 5.52 4.96 5.02
Brazil Belo Horizonte 19º 55' S 43º 56' W 5.45 5.63 5.34 4.78 4.30 4.09 4.32 4.82 5.05 5.26 5.25 4.98 4.94
Brazil Brasilia 15º 52' S 47º 56' W 5.21 5.15 5.09 4.99 4.80 4.59 4.86 5.46 5.28 5.23 4.97 4.82 5.04
Brazil Curitiba 25º 26' S 49º 15' W 5.48 4.88 4.32 3.57 2.95 2.83 2.96 3.47 3.87 4.65 5.44 5.41 4.15
Brazil Fortaleza 03º 43' S 38º 31' W 5.85 5.44 4.82 4.80 5.11 5.34 5.74 6.34 6.60 6.62 6.50 6.16 5.78
Brazil Manaus 03º 08' S 60º 01' W 4.15 4.12 4.22 4.34 4.08 4.24 4.55 4.98 5.23 4.93 4.72 4.23 4.48
Brazil Porto Alegre 30º 02' S 51º 13' W 6.08 5.56 4.54 3.48 2.81 2.27 2.50 3.06 3.89 5.01 5.93 6.50 4.30
Brazil Recife 08º 05' S 34º 54' W 6.59 6.22 5.95 5.05 4.84 4.61 4.38 5.07 5.78 6.23 6.40 6.48 5.63
Brazil Rio de Janeiro 22º 54' S 42º 10' W 5.40 5.34 4.87 4.11 3.43 3.35 3.39 3.83 3.77 4.41 4.97 4.98 4.32
Brazil Salvador 12º 59' S 38º 30' W 5.89 5.79 5.28 4.59 4.09 3.75 3.83 4.26 4.79 5.32 5.38 5.61 4.88
Brazil Sao Paulo 23º 33' S 46º 39' W 5.44 5.05 4.75 4.21 3.47 3.36 3.54 4.19 4.25 5.09 5.73 5.38 4.54
Chile Iquique 20º 13' S 70º 10' W 7.42 7.34 6.19 4.70 3.45 2.78 3.04 3.39 4.53 5.37 6.36 7.40 5.16
Chile Osorno 40º 35' S 73º 14' W 6.78 6.02 4.34 2.93 1.91 1.43 1.69 2.48 3.50 4.95 6.47 6.98 4.12
Chile Santiago 33º 27' S 70º 42' W 7.55 6.56 5.13 3.83 2.59 2.22 2.38 3.09 4.08 5.64 6.84 7.82 4.81
Chile Valparaiso 33º 01' S 71º 38' W 7.55 6.56 5.13 3.83 2.59 2.22 2.38 3.09 4.08 5.64 6.84 7.82 4.81
Columbia Bogota 04º 36' N 74º 05' W 4.50 4.48 4.67 4.46 4.45 4.63 4.71 4.70 4.80 4.28 4.24 4.32 4.52
Columbia Cali 03º 27' N 76º 30' W 3.63 3.90 4.09 3.89 3.76 3.71 4.05 3.93 3.89 3.52 3.49 3.44 3.78
Columbia Cartagena 10º 25' N 75º 32' W 5.74 6.18 6.54 6.30 5.62 5.56 5.66 5.72 5.35 4.72 4.90 5.30 5.63
Columbia Medellin 06º 14' N 75º 34' W 3.95 4.22 4.38 3.95 4.01 4.36 4.67 4.51 4.37 3.82 3.78 3.86 4.16
Ecuador Guayaquil 02º 13' S 79º 54' W 6.07 6.01 6.31 6.31 5.83 4.88 4.50 4.50 4.95 4.69 5.29 5.93 5.44
Ecuador Quito 00º 14' S 78º 30' W 3.57 3.56 3.71 3.71 3.73 3.81 3.85 3.88 3.89 3.79 3.85 3.68 3.75
French Guiana Cayenne 04º 56' N 52º 27' W 3.91 4.34 4.55 4.66 4.04 4.25 4.96 5.40 5.81 5.51 4.91 4.29 4.72
Guyana Georgetown 06º 50' N 58º 12' W 4.12 4.57 4.98 5.09 4.49 4.32 4.65 4.90 5.15 4.88 4.42 4.01 4.63
Peru Arequipa 16º 25' S 71º 32' W 4.95 5.26 4.88 4.90 4.80 4.53 4.78 5.16 5.70 5.84 5.96 5.54 5.19
Peru Cusco 13º 30' S 71º 58' W 4.19 4.43 4.23 3.99 3.74 3.56 4.01 4.29 4.55 4.72 4.67 4.50 4.24
Peru Lima 12º 03' S 77º 02' W 7.27 7.52 7.25 6.28 4.78 3.34 3.17 3.39 4.33 5.11 6.02 6.85 5.44
Paraguay Asuncion 25º 20' S 57º 31' W 6.10 5.77 4.98 3.84 3.48 2.76 3.09 3.97 4.49 5.26 6.22 6.26 4.69
Suriname Paramaribo 05º 49' N 55º 09' W 4.13 4.63 5.07 5.08 4.78 4.78 5.12 5.42 5.87 5.61 4.97 4.47 4.99
Venezuela Caracas 10º 30' N 66º 54' W 5.14 5.82 6.11 5.94 5.76 5.63 5.77 5.77 5.72 5.56 5.01 4.84 5.59
Venezuela Maracaibo 10º 39' N 71º 36' W 4.71 5.09 5.42 5.22 5.12 5.28 5.49 5.31 5.20 4.68 4.55 4.51 5.05
Venezuela Valencia 10º 09' N 68º 00' W 5.75 6.68 7.17 7.28 6.48 5.11 5.92 6.26 6.26 6.13 5.76 5.41 6.18

Insolation Levels (Nth America)
Average Insolation (10 year average) kWh/m2/day
State
City
Latitude
Longitude
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year Avg
AL
Birming han
33' 34" N
86' 45" W
2.29
3.31
4.04
5.14
5.92
5.98
5.81
5.7
4.8
3.93
2.96
2.25
4.34
AK
Anchorage
61' 10" N
150' 1" W
0.21
0.76
1.68
3.12
3.98
4.58
4.25
3.16
1.98
0.98
0.37
0.12
2.09
AR
little rock
32' 25" N
94' 44" W
2.36
3.39
4.01
5.32
5.71
6.19
6.15
5.85
5.25
4.17
2.95
2.25
4.46
AZ
Phoenix
33 ' 26" N
112' 1" W
3.25
4.41
5.17
6.76
7.42
7.7
6.99
6.11
6.02
4.44
3.52
2.75
5.38
CA
Los Angeles
34' N
118' W
3.09
4.25
5.09
6.58
7.29
7.62
7.45
6.72
6.11
4.42
3.43
2.72
5.40
CA
San Francisco
38' 31" N
121' 30" W
2.35
3.33
4.42
5.95
6.84
7.39
7.55
6.51
5.75
3.92
2.65
2.06
4.89
CO
Denver
39' 45" N
104' 52" W
2.25
3.2
4.32
5.61
6.11
6.71
6.5
5.86
5.47
4.01
2.59
1.98
4.55
CT
Hartford
41' 44" N
72' 39" W
1.7
2.43
3.48
4.07
5.14
5.58
5.38
5.04
4.13
2.91
1.81
1.42
3.59
DE
Dover
39' 8" N
75' 28" W
1.85
2.62
3.6
4.33
5.44
5.91
5.64
5.3
4.38
3.23
2.21
1.66
3.84
FL
Miami
25' 48" N
80' 16" W
3.72
4.61
5.42
6.4
6.61
6.29
6.26
6.08
5.47
4.84
3.96
3.46
5.26
GA
Atlanta
33' 39" N
84' 26" W
2.31
3.37
4.08
5.2
6.02
6.01
5.81
5.59
4.76
3.95
2.98
2.33
4.37
HI
Honolulu
21' 20" N
157' 55" W
4.38
5.15
5.99
6.69
7.05
7.48
7.37
7.07
6.51
5.46
4.41
4.01
5.96
IA
Dubuque
42' 24" N
90' 42" W
1.64
2.58
3.34
4.57
5.54
6.06
5.81
5.26
4.33
3.03
1.72
1.35
3.77
ID
Boise
43' 34" N
116' 13" W
1.73
2.72
3.77
5.22
5.9
6.57
7.17
6.12
5.28
3.29
1.74
1.46
4.24
IN
Indianapolis
39' 44" N
86' 17" W
1.67
2.59
3.28
4.67
5.46
6.11
5.79
5.37
4.76
3.33
1.97
1.46
3.87
IL
Chicago
41' 53" N
87' 38" W
1.5
2.45
3.2
4.48
5.56
6.07
5.68
5.27
4.51
3.07
1.69
1.26
3.72
KS
Kansas City
39' 12" N
94' 36" W
2.06
2.89
3.62
4.92
5.58
6.17
6.21
5.59
4.9
3.49
2.2
1.75
4.11
KY
Louisville
38' 11" N
85' 44" W
1.71
2.65
3.32
4.73
5.38
6.08
5.79
5.35
4.8
3.42
2.1
1.56
3.9
LA
New Orleans
29' 37" N
90' 5" W
2.64
3.73
4.67
5.8
6.6
6.15
6.09
5.7
5.13
4.48
3.49
2.68
4.76
MA
Boston
42' 22" N
71' 2" W
1.66
2.5
3.51
4.13
5.11
5.47
5.44
5.05
4.12
2.84
1.74
1.4
3.58
MD
Annapolis
38' 35" N
76' 21" W
1.96
2.8
3.71
4.55
5.54
6.03
5.77
5.34
4.48
3.4
2.37
1.81
3.98
ME
Portland
45' 36" N
122' 36" W
1.38
2.33
3.49
4.57
5.46
6.09
6.64
5.78
4.8
2.79
1.41
1.1
3.82
MI
Detroit
42' 25" N
83' 1" W
1.43
2.33
3.19
4.34
5.44
5.98
5.64
4.99
4.25
2.73
1.52
1.14
3.58
MO
St.Louis
38' 45" N
90' 23" W
2.02
2.82
3.52
4.97
5.56
6.21
6.05
5.63
4.91
3.55
2.21
1.73
4.09
MN
Minneapolis
44' 53" N
93' 13" W
1.6
2.61
3.3
4.55
5.44
5.86
5.77
5.12
4.12
2.9
1.62
1.34
3.68
MS
Jackson
42' 16" N
84' 28" W
1.47
2.41
3.22
4.33
5.46
5.93
5.57
4.99
4.3
2.78
1.55
1.17
3.59
MT
Billings
45' 48" N
108' 32" W
1.55
2.57
3.52
4.82
5.63
6.45
6.39
5.75
4.67
3.19
1.77
1.3
3.96
MT
Great Falls
43' 33" N
96' 42" W
1.3
2.36
3.41
4.84
5.56
6.18
6.44
5.53
4.4
2.9
1.53
1.11
3.79
NC
Charlotte
35' 13" N
80' 56" W
2.22
3.17
3.95
4.98
5.8
6.01
5.76
5.27
4.58
3.75
2.76
2.21
4.2
ND
Fargo
46' 54" N
96' 48" W
1.44
2.39
3.36
4.79
5.62
5.82
5.94
5.14
4.01
2.83
1.59
1.31
3.68
NE
Omaha
41' 18" N
95' 54" W
1.92
2.76
3.45
4.74
5.6
6.14
6.11
5.46
4.74
3.34
2
1.57
3.98
NH
Manchester
42' 56" N
71' 26" W
1.66
2.5
3.51
4.13
5.11
5.47
5.44
5.05
4.12
2.84
1.74
1.4
3.58
NJ
Trenton
40' 13" N
74' 46" W
1.71
2.39
3.43
4.04
5.26
5.67
5.39
5.14
4.18
3
1.98
1.48
3.63
NM
Albuquerque
35' 3" N
106' 37" W
2.92
3.97
4.92
6.3
6.68
6.94
6.66
5.8
5.68
4.18
3.16
2.5
4.97
NV
Las Vegas
36' 18" N
115' 16" W
3.02
4.13
5.05
6.57
7.25
7.69
7.37
6.42
6.08
4.26
3.18
2.6
5.3
NY
New York
41' N
74' W
1.67
2.37
3.41
3.93
5.11
5.48
5.26
5.01
4.05
2.85
1.82
1.4
3.53
OH
Columbus
39' 16" N
85' 54" W
1.64
2.57
3.26
4.63
5.4
6.08
5.73
5.29
4.74
3.29
1.96
1.45
3.83
OK
Tulsa
36' 12" N
95' 54" W
2.33
3.22
3.9
5.25
5.58
6.32
6.4
5.8
5.08
3.8
2.62
2.06
4.36
OR
Portland
45' 32" N
122' 40" W
1.38
2.33
3.49
4.57
5.46
6.09
6.64
5.78
4.8
2.79
1.41
1.1
3.82
PA
Philadelphia
39' 53" N
75' 15" W
1.85
2.62
3.6
4.33
5.44
5.91
5.64
5.3
4.38
3.23
2.21
1.66
3.84
PA
Pittsburgh
40' 27" N
79' 57" W
1.59
2.4
3.26
4.07
5.05
5.53
5.27
4.94
4.05
2.88
1.86
1.41
3.53
RI
Providence
41' 44" N
71' 26" W
1.7
2.46
3.53
4.2
5.17
5.67
5.48
5.08
4.21
2.97
1.8
1.43
3.64
SC
Columbia
38' 58" N
92' 22" W
2.14
2.91
3.62
5.03
5.56
6.22
6.13
5.64
4.95
3.57
2.25
1.82
4.15
SD
Sioux Falls
45' 27" N
98' 25" W
1.72
2.71
3.31
4.65
5.61
6.1
6.04
5.42
4.47
3.2
1.78
1.43
3.87
TN
Nashville
36' 7" N
86' 41" W
1.94
2.9
3.54
4.76
5.57
5.9
5.86
5.62
4.63
3.53
2.45
1.82
4.04
TX
San Antonio
29' 32" N
98' 28" W
2.57
3.7
4.43
5.54
5.94
6.62
6.49
6.28
5.7
4.67
3.43
2.62
4.83
TX
Houston
29' 59" N
95' 22" W
2.47
3.5
4.4
5.59
6.03
6.45
6.36
6.07
5.46
4.61
3.3
2.44
4.72
UT
Salt Lake City
40' 46" N
111" 52" W
2.23
3.15
4.09
5.57
6.26
6.98
6.86
5.98
5.39
3.68
2.29
1.97
4.53
VA
Washington
38' 51" N
77' 2" W
1.95
2.8
3.66
4.46
5.42
5.88
5.63
5.22
4.38
3.36
2.34
1.79
3.9
VT
Montpelier
44' 16" N
72' 35" W
1.58
2.54
3.5
4.05
5
5.24
5.37
4.92
3.79
2.46
1.52
1.28
3.43
WA
Seattle
47' 32" N
122' 18" W
1.14
2.04
3.23
4.26
5.19
5.75
6.27
5.46
4.43
2.5
1.21
0.9
3.53
WI
Milwaukee
42' 57" N
87' 54" W
1.43
2.41
3.29
4.48
5.6
6.09
5.74
5.21
4.34
2.9
1.6
1.2
3.69
WV
Charleston
38' 22" N
81' 36" W
1.75
2.64
3.34
4.26
5.2
5.67
5.49
5.19
4.26
3.19
2.15
1.62
3.73
WY
Casper
42' 55" N
106' 28" W
1.93
2.8
3.79
5.13
5.9
6.68
6.5
5.9
5.13
3.59
2.06
1.65
4.25
Data courtesy of: NASA - Surface meteorology and Solar Energy Data Set
Reference:
Whitlock, C. E., et al., Release 3 NASA Surface Meteorology and
Solar Energy Data Set for Renewable Energy Industry Use.
Rise & Shine 2000, the 26th Annual Conference of the Solar
Energy Society of Canada Inc. and Solar, Oct. 21-24, 2000,
Halifax, Nova Scotia, Canada.

Please note: If your region is not listed please visit the NASA website where you can search for insolation value for any areas of the world. You will need to obtain a free username and password to gain access.

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