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Macapá, Brazil climate
Am Tropical monsoon
Macapá has a remarkably steady tropical climate (Tropical monsoon, Köppen Am). The hottest month is October with an average daily high near 34°C, while the coldest is February averaging around 24°C at night. Precipitation totals about 2526 mm a year and is strongly seasonal — March alone averages 400 mm while October barely receives 23 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)Macapá climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 30 | 30 | 31 | 31 | 32 | 32 | 33 | 33 | 34 | 33 | 32 |
| Avg temp (°C) | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 29 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 268 | 369 | 400 | 376 | 308 | 252 | 204 | 96 | 25 | 23 | 58 | 145 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 30 | 30 | 31 | 31 | 32 |
| Avg temp (°C) | 27 | 26 | 26 | 27 | 27 | 27 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 268 | 369 | 400 | 376 | 308 | 252 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 33 | 33 | 34 | 33 | 32 |
| Avg temp (°C) | 27 | 28 | 29 | 29 | 29 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 204 | 96 | 25 | 23 | 58 | 145 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 85 | 87 | 86 | 75 | 63 | 55 | 46 | 42 | 51 | 59 | 68 |
| Relative humidity (%) | 86 | 90 | 91 | 92 | 92 | 91 | 90 | 88 | 82 | 72 | 70 | 76 |
| Wind speed (m/s) | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 85 | 87 | 86 | 75 | 63 |
| Relative humidity (%) | 86 | 90 | 91 | 92 | 92 | 91 |
| Wind speed (m/s) | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 46 | 42 | 51 | 59 | 68 |
| Relative humidity (%) | 90 | 88 | 82 | 72 | 70 | 76 |
| Wind speed (m/s) | 0.4 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Macapa, about 11 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.