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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 31°C, while the coldest is July averaging around 22°C at night. Precipitation totals about 1189 mm a year and is strongly seasonal — May alone averages 227 mm while December barely receives 24 mm.
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 (°C) | 31 | 31 | 31 | 30 | 30 | 29 | 28 | 28 | 28 | 29 | 30 | 30 |
| Avg temp (°C) | 27 | 28 | 28 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 27 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 23 | 22 | 22 | 22 | 23 | 23 | 24 | 24 |
| Precipitation (mm) | 43 | 67 | 73 | 154 | 227 | 198 | 150 | 97 | 62 | 56 | 38 | 24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 31 | 30 | 30 | 29 |
| Avg temp (°C) | 27 | 28 | 28 | 27 | 27 | 26 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 23 | 22 |
| Precipitation (mm) | 43 | 67 | 73 | 154 | 227 | 198 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 28 | 29 | 30 | 30 |
| Avg temp (°C) | 25 | 25 | 25 | 26 | 27 | 27 |
| Avg low (°C) | 22 | 22 | 23 | 23 | 24 | 24 |
| Precipitation (mm) | 150 | 97 | 62 | 56 | 38 | 24 |
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 (km/h) | 17.7 | 17.2 | 16.6 | 15.9 | 16.3 | 17.6 | 18.0 | 17.7 | 17.7 | 18.1 | 18.5 | 18.1 |
| 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 (km/h) | 17.7 | 17.2 | 16.6 | 15.9 | 16.3 | 17.6 |
| 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 (km/h) | 18.0 | 17.7 | 17.7 | 18.1 | 18.5 | 18.1 |
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.