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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 93°F, while the coldest is February averaging around 74°F at night. Precipitation totals about 99 inches a year and is strongly seasonal — March alone averages 15.8 inches while October barely receives 0.89 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)Macapá climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 86 | 87 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 92 | 90 |
| Avg temp (°F) | 80 | 79 | 80 | 80 | 81 | 81 | 81 | 82 | 83 | 84 | 84 | 82 |
| Avg low (°F) | 74 | 74 | 75 | 75 | 76 | 75 | 75 | 76 | 76 | 76 | 76 | 75 |
| Precipitation (in) | 10.6 | 14.5 | 15.8 | 14.8 | 12.1 | 9.9 | 8.0 | 3.8 | 1.0 | 0.9 | 2.3 | 5.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 86 | 87 | 87 | 88 | 89 |
| Avg temp (°F) | 80 | 79 | 80 | 80 | 81 | 81 |
| Avg low (°F) | 74 | 74 | 75 | 75 | 76 | 75 |
| Precipitation (in) | 10.6 | 14.5 | 15.8 | 14.8 | 12.1 | 9.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 90 | 91 | 92 | 93 | 92 | 90 |
| Avg temp (°F) | 81 | 82 | 83 | 84 | 84 | 82 |
| Avg low (°F) | 75 | 76 | 76 | 76 | 76 | 75 |
| Precipitation (in) | 8.0 | 3.8 | 1.0 | 0.9 | 2.3 | 5.7 |
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 (mph) | 1.1 | 1.0 | 1.0 | 0.9 | 0.9 | 1.0 | 1.0 | 1.0 | 1.1 | 1.2 | 1.2 | 1.1 |
| 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 (mph) | 1.1 | 1.0 | 1.0 | 0.9 | 0.9 | 1.0 |
| 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 (mph) | 1.0 | 1.0 | 1.1 | 1.2 | 1.2 | 1.1 |
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.