September Precipitation Averages for South American Cities





The tables below give September averages for rainfall at major cities throughout South America. Each place has a total for how much precipitation it usually gets this month and most have data on the number of days with wet weather.

Included in the group are South America's national capitals plus cities with a metropolitan population of over one million people.

The cities are listed alphabetically and you can jump ahead to the section for Asunción to Cochabamba or Córdoba to Montevideo or Natal to Vitíria.

The amounts of rain are averages of historical climate measurements made over a long period, in most cases 30 years.

Average September precipitation
Days City Inches Milli­metres
6 Asunción, Paraguay 3.5 88
10 Barquisimeto, Venezuela 1.5 37
10 Barranquilla, Colombia 5.3 136
15 Belém, Brazil 5.7 145
3 Belo Horizonte, Brazil 1.5 39
16 Bogotá, Colombia 2.9 75
5 Brasília, Brazil 2.2 55
18 Bucaramanga, Colombia 4.6 118
Buenos Aires, Argentina 2.9 73
13 Cali, Colombia 4.1 103
5 Campinas, Brazil 2.5 63
15 Caracas, Venezuela 4.5 115
12 Cartagena, Colombia 4.5 115
5 Cayenne, French Guiana 1.5 39
4 Cochabamba, Bolivia 0.3 8
September rainfall averages
Days City Inches Milli­metres
Córdoba, Argentina 1.3 34
9 Curitiba, Brazil 4.7 119
5 Fortaleza, Brazil 0.9 23
9 Georgetown, Guyana 3.8 98
5 Goiânia, Brazil 1.8 45
2 Guayaquil, Ecuador 0.1 2
11 Joao Pessoa, Brazil 3.4 87
7 La Paz - El Alto, Bolivia 1.1 27
Lima, Peru 0.2 5
15 Maceió, Brazil 5.1 130
6 Manaus, Brazil 2.9 74
12 Maracaibo, Venezuela 4.1 104
16 Maracay, Venezuela 5.7 144
22 Medellín, Colombia 7.2 182
Mendoza, Argentina 0.5 12
8 Montevideo, Uruguay 3.7 94
Average amount of rain in September
Days City Inches Milli­metres
8 Natal, Brazil 2.3 59
Paramaribo, Suriname 4.2 107
10 Porto Alegre, Brazil 5.6 142
12 Quito, Ecuador 2.7 69
13 Recife, Brazil 4.8 122
7 Rio de Janeiro, Brazil 2.1 54
Rosario, Argentina 2.4 62
12 Salvador, Brazil 4.0 102
6 Santa Cruz, Bolivia 3.0 75
6 Santiago, Chile 0.9 22
2 Sao Luís, Brazil 0.9 23
7 São Paulo, Brazil 2.8 71
4 Sucre, Bolivia 1.1 28
2 Teresina, Brazil 0.4 9
9 Vitíria, Brazil 3.5 90
Reference

The precipitation data are provided by national meteorological agencies.

City Precipitation
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