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Fortaleza, Brazil climate
Aw Tropical savanna (dry winter)
Fortaleza has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is December with an average daily high near 89°F, while the coldest is July averaging around 73°F at night. Precipitation totals about 62 inches a year and is strongly seasonal — April alone averages 15.2 inches while October barely receives 0.37 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Fortaleza climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 88 | 87 | 87 | 87 | 87 | 87 | 88 | 89 | 89 | 89 | 89 |
| Avg temp (°F) | 81 | 81 | 81 | 80 | 80 | 80 | 79 | 80 | 81 | 81 | 82 | 82 |
| Avg low (°F) | 76 | 76 | 75 | 75 | 75 | 74 | 73 | 73 | 74 | 76 | 76 | 77 |
| Precipitation (in) | 6.2 | 7.4 | 13.3 | 15.2 | 9.0 | 5.1 | 2.7 | 0.8 | 0.5 | 0.4 | 0.4 | 1.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 88 | 87 | 87 | 87 | 87 |
| Avg temp (°F) | 81 | 81 | 81 | 80 | 80 | 80 |
| Avg low (°F) | 76 | 76 | 75 | 75 | 75 | 74 |
| Precipitation (in) | 6.2 | 7.4 | 13.3 | 15.2 | 9.0 | 5.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 88 | 89 | 89 | 89 | 89 |
| Avg temp (°F) | 79 | 80 | 81 | 81 | 82 | 82 |
| Avg low (°F) | 73 | 73 | 74 | 76 | 76 | 77 |
| Precipitation (in) | 2.7 | 0.8 | 0.5 | 0.4 | 0.4 | 1.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 67 | 70 | 74 | 59 | 49 | 41 | 30 | 26 | 34 | 42 | 47 |
| Relative humidity (%) | 74 | 79 | 84 | 87 | 85 | 82 | 76 | 68 | 64 | 63 | 65 | 68 |
| Wind speed (mph) | 5.4 | 4.6 | 3.9 | 3.5 | 3.9 | 4.6 | 5.4 | 6.5 | 7.6 | 8.0 | 7.8 | 7.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 67 | 70 | 74 | 59 | 49 |
| Relative humidity (%) | 74 | 79 | 84 | 87 | 85 | 82 |
| Wind speed (mph) | 5.4 | 4.6 | 3.9 | 3.5 | 3.9 | 4.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 41 | 30 | 26 | 34 | 42 | 47 |
| Relative humidity (%) | 76 | 68 | 64 | 63 | 65 | 68 |
| Wind speed (mph) | 5.4 | 6.5 | 7.6 | 8.0 | 7.8 | 7.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Fortaleza, about 8 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.