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Palmas, Brazil climate
As Tropical savanna (dry summer)
Palmas has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is September with an average daily high near 37°C, while the coldest is January averaging around 22°C at night. Precipitation totals about 1750 mm a year and is strongly seasonal — January alone averages 299 mm while July barely receives 1 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)Palmas climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 33 | 34 | 35 | 35 | 37 | 37 | 35 | 33 | 32 |
| Avg temp (°C) | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 30 | 28 | 27 | 27 |
| Avg low (°C) | 22 | 22 | 23 | 23 | 22 | 20 | 20 | 21 | 23 | 23 | 23 | 23 |
| Precipitation (mm) | 299 | 260 | 264 | 180 | 61 | 6 | 1 | 1 | 46 | 144 | 224 | 264 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 33 | 34 | 35 |
| Avg temp (°C) | 26 | 26 | 26 | 27 | 27 | 27 |
| Avg low (°C) | 22 | 22 | 23 | 23 | 22 | 20 |
| Precipitation (mm) | 299 | 260 | 264 | 180 | 61 | 6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 37 | 37 | 35 | 33 | 32 |
| Avg temp (°C) | 27 | 28 | 30 | 28 | 27 | 27 |
| Avg low (°C) | 20 | 21 | 23 | 23 | 23 | 23 |
| Precipitation (mm) | 1 | 1 | 46 | 144 | 224 | 264 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 81 | 81 | 68 | 47 | 22 | 16 | 24 | 48 | 72 | 80 | 81 |
| Relative humidity (%) | 82 | 83 | 84 | 82 | 78 | 69 | 58 | 48 | 46 | 59 | 73 | 79 |
| Wind speed (km/h) | 4.9 | 4.9 | 4.7 | 4.8 | 5.6 | 6.9 | 7.7 | 8.4 | 8.4 | 6.6 | 5.4 | 5.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 81 | 81 | 68 | 47 | 22 |
| Relative humidity (%) | 82 | 83 | 84 | 82 | 78 | 69 |
| Wind speed (km/h) | 4.9 | 4.9 | 4.7 | 4.8 | 5.6 | 6.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 16 | 24 | 48 | 72 | 80 | 81 |
| Relative humidity (%) | 58 | 48 | 46 | 59 | 73 | 79 |
| Wind speed (km/h) | 7.7 | 8.4 | 8.4 | 6.6 | 5.4 | 5.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Palmas, about 3 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.