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Goiânia, Brazil climate
Aw Tropical savanna (dry winter)
Goiânia has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is September with an average daily high near 34°C, while the coldest is June averaging around 15°C at night. Precipitation totals about 1611 mm a year and is strongly seasonal — December alone averages 272 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)Goiânia climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 31 | 31 | 30 | 30 | 31 | 33 | 34 | 33 | 31 | 31 |
| Avg temp (°C) | 25 | 25 | 25 | 25 | 23 | 22 | 23 | 25 | 26 | 26 | 25 | 25 |
| Avg low (°C) | 20 | 20 | 20 | 19 | 17 | 15 | 15 | 17 | 19 | 20 | 20 | 20 |
| Precipitation (mm) | 249 | 236 | 258 | 138 | 30 | 8 | 1 | 9 | 44 | 144 | 220 | 272 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 31 | 31 | 30 | 30 |
| Avg temp (°C) | 25 | 25 | 25 | 25 | 23 | 22 |
| Avg low (°C) | 20 | 20 | 20 | 19 | 17 | 15 |
| Precipitation (mm) | 249 | 236 | 258 | 138 | 30 | 8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 33 | 34 | 33 | 31 | 31 |
| Avg temp (°C) | 23 | 25 | 26 | 26 | 25 | 25 |
| Avg low (°C) | 15 | 17 | 19 | 20 | 20 | 20 |
| Precipitation (mm) | 1 | 9 | 44 | 144 | 220 | 272 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 78 | 74 | 53 | 37 | 26 | 22 | 25 | 47 | 70 | 81 | 83 |
| Relative humidity (%) | 82 | 83 | 84 | 82 | 77 | 69 | 57 | 45 | 45 | 60 | 76 | 81 |
| Wind speed (mph) | 4.1 | 3.7 | 3.5 | 3.7 | 4.0 | 4.6 | 5.4 | 5.9 | 5.7 | 4.5 | 4.0 | 4.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 78 | 74 | 53 | 37 | 26 |
| Relative humidity (%) | 82 | 83 | 84 | 82 | 77 | 69 |
| Wind speed (mph) | 4.1 | 3.7 | 3.5 | 3.7 | 4.0 | 4.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 22 | 25 | 47 | 70 | 81 | 83 |
| Relative humidity (%) | 57 | 45 | 45 | 60 | 76 | 81 |
| Wind speed (mph) | 5.4 | 5.9 | 5.7 | 4.5 | 4.0 | 4.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Goiania, about 1 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.