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Aracaju, Brazil climate
As Tropical savanna (dry summer)
Aracaju has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is March with an average daily high near 88°F, while the coldest is July averaging around 71°F at night. Precipitation totals about 47 inches a year and is strongly seasonal — May alone averages 8.9 inches while December barely receives 0.94 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)Aracaju climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 87 | 88 | 87 | 85 | 83 | 82 | 82 | 83 | 85 | 86 | 86 |
| Avg temp (°F) | 81 | 82 | 82 | 81 | 80 | 78 | 77 | 77 | 78 | 79 | 80 | 81 |
| Avg low (°F) | 75 | 75 | 75 | 75 | 73 | 72 | 71 | 71 | 73 | 74 | 74 | 75 |
| Precipitation (in) | 1.7 | 2.6 | 2.9 | 6.1 | 8.9 | 7.8 | 5.9 | 3.8 | 2.4 | 2.2 | 1.5 | 0.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 87 | 88 | 87 | 85 | 83 |
| Avg temp (°F) | 81 | 82 | 82 | 81 | 80 | 78 |
| Avg low (°F) | 75 | 75 | 75 | 75 | 73 | 72 |
| Precipitation (in) | 1.7 | 2.6 | 2.9 | 6.1 | 8.9 | 7.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 82 | 83 | 85 | 86 | 86 |
| Avg temp (°F) | 77 | 77 | 78 | 79 | 80 | 81 |
| Avg low (°F) | 71 | 71 | 73 | 74 | 74 | 75 |
| Precipitation (in) | 5.9 | 3.8 | 2.4 | 2.2 | 1.5 | 0.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 63 | 58 | 56 | 55 | 57 | 55 | 54 | 48 | 47 | 51 | 57 |
| Relative humidity (%) | 75 | 76 | 76 | 78 | 79 | 79 | 78 | 77 | 76 | 75 | 75 | 75 |
| Wind speed (mph) | 11.0 | 10.7 | 10.3 | 9.9 | 10.2 | 10.9 | 11.2 | 11.0 | 11.0 | 11.3 | 11.5 | 11.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 63 | 58 | 56 | 55 | 57 |
| Relative humidity (%) | 75 | 76 | 76 | 78 | 79 | 79 |
| Wind speed (mph) | 11.0 | 10.7 | 10.3 | 9.9 | 10.2 | 10.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 54 | 48 | 47 | 51 | 57 |
| Relative humidity (%) | 78 | 77 | 76 | 75 | 75 | 75 |
| Wind speed (mph) | 11.2 | 11.0 | 11.0 | 11.3 | 11.5 | 11.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Aracaju, about 2 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.