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Mossoró, Brazil climate
BSh Hot semi-arid
Mossoró has a remarkably steady tropical climate (Hot semi-arid, Köppen BSh). The hottest month is December with an average daily high near 35°C, while the coldest is July averaging around 22°C at night. Precipitation totals about 691 mm a year and is strongly seasonal — April alone averages 177 mm while November barely receives 2 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)Mossoró climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 34 | 33 | 32 | 33 | 33 | 33 | 34 | 35 | 35 | 35 | 35 |
| Avg temp (°C) | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 23 | 24 | 24 |
| Precipitation (mm) | 74 | 98 | 168 | 177 | 88 | 40 | 24 | 6 | 2 | 3 | 2 | 9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 34 | 33 | 32 | 33 | 33 |
| Avg temp (°C) | 28 | 28 | 28 | 27 | 27 | 27 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 23 | 23 |
| Precipitation (mm) | 74 | 98 | 168 | 177 | 88 | 40 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 34 | 35 | 35 | 35 | 35 |
| Avg temp (°C) | 27 | 27 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 22 | 22 | 22 | 23 | 24 | 24 |
| Precipitation (mm) | 24 | 6 | 2 | 3 | 2 | 9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 58 | 63 | 63 | 48 | 42 | 35 | 21 | 21 | 25 | 31 | 36 |
| Relative humidity (%) | 66 | 71 | 76 | 79 | 76 | 71 | 65 | 59 | 57 | 57 | 59 | 61 |
| Wind speed (m/s) | 4.5 | 4.0 | 3.5 | 3.2 | 3.5 | 4.0 | 4.6 | 5.2 | 5.6 | 5.8 | 5.7 | 5.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 58 | 63 | 63 | 48 | 42 |
| Relative humidity (%) | 66 | 71 | 76 | 79 | 76 | 71 |
| Wind speed (m/s) | 4.5 | 4.0 | 3.5 | 3.2 | 3.5 | 4.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 21 | 21 | 25 | 31 | 36 |
| Relative humidity (%) | 65 | 59 | 57 | 57 | 59 | 61 |
| Wind speed (m/s) | 4.6 | 5.2 | 5.6 | 5.8 | 5.7 | 5.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Jaguaruana, about 65 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.