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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 100°F, while the coldest is March averaging around 75°F at night. Precipitation totals about 41 inches a year and is strongly seasonal — March alone averages 9.1 inches while August barely receives 0.19 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)Teresina climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 93 | 92 | 92 | 92 | 92 | 93 | 94 | 97 | 100 | 100 | 99 | 97 |
| Avg temp (°F) | 84 | 83 | 83 | 83 | 84 | 84 | 84 | 85 | 88 | 89 | 88 | 87 |
| Avg low (°F) | 75 | 75 | 75 | 75 | 76 | 75 | 74 | 74 | 76 | 77 | 77 | 77 |
| Precipitation (in) | 6.2 | 7.0 | 9.1 | 8.2 | 3.7 | 1.1 | 0.4 | 0.2 | 0.4 | 0.9 | 1.4 | 2.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 93 | 92 | 92 | 92 | 92 | 93 |
| Avg temp (°F) | 84 | 83 | 83 | 83 | 84 | 84 |
| Avg low (°F) | 75 | 75 | 75 | 75 | 76 | 75 |
| Precipitation (in) | 6.2 | 7.0 | 9.1 | 8.2 | 3.7 | 1.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 94 | 97 | 100 | 100 | 99 | 97 |
| Avg temp (°F) | 84 | 85 | 88 | 89 | 88 | 87 |
| Avg low (°F) | 74 | 74 | 76 | 77 | 77 | 77 |
| Precipitation (in) | 0.4 | 0.2 | 0.4 | 0.9 | 1.4 | 2.8 |
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 (mph) | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 |
| 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 (mph) | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 |
| 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 (mph) | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 |
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.