• non pressure solar water heater galvanzed
  • non pressure solar water heater stainless steel
  • split solar water heater aluminum
  • split solar water heater stainless steel
  • integrative pressurized solar water heater
  • flat plate solar water heater
  • u pipe solar water heater
  • Close Loop Thermosyphon solar water system
  • active solar water sysytem
  • solar water heater accessories

    • 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

    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.

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