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Teresina, Brazil climate
As Tropical savanna (dry summer)
Teresina has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is October with an average daily high near 38°C, while the coldest is March averaging around 24°C at night. Precipitation totals about 1046 mm a year and is strongly seasonal — March alone averages 230 mm while August barely receives 5 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)Teresina climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 33 | 33 | 33 | 33 | 34 | 35 | 36 | 38 | 38 | 37 | 36 |
| Avg temp (°C) | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 30 | 31 | 31 | 31 | 30 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 25 | 25 | 25 |
| Precipitation (mm) | 158 | 177 | 230 | 209 | 93 | 27 | 10 | 5 | 9 | 22 | 35 | 72 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 33 | 33 | 33 | 33 | 34 |
| Avg temp (°C) | 29 | 29 | 28 | 29 | 29 | 29 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 158 | 177 | 230 | 209 | 93 | 27 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 36 | 38 | 38 | 37 | 36 |
| Avg temp (°C) | 29 | 30 | 31 | 31 | 31 | 30 |
| Avg low (°C) | 23 | 23 | 24 | 25 | 25 | 25 |
| Precipitation (mm) | 10 | 5 | 9 | 22 | 35 | 72 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 76 | 77 | 71 | 52 | 36 | 28 | 25 | 33 | 46 | 56 | 64 |
| Relative humidity (%) | 78 | 86 | 89 | 90 | 84 | 72 | 60 | 50 | 47 | 49 | 55 | 63 |
| Wind speed (m/s) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 76 | 77 | 71 | 52 | 36 |
| Relative humidity (%) | 78 | 86 | 89 | 90 | 84 | 72 |
| Wind speed (m/s) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 28 | 25 | 33 | 46 | 56 | 64 |
| Relative humidity (%) | 60 | 50 | 47 | 49 | 55 | 63 |
| Wind speed (m/s) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Senador Petronio Portella, a weather station, about 4 km from the city centre. The underlying daily records come from NOAA's global station network.
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.