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Mayumba, Gabon climate
Aw Tropical savanna (dry winter)
Mayumba has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is March with an average daily high near 83°F, while the coldest is July averaging around 69°F at night. Precipitation totals about 65 inches a year and is strongly seasonal — December alone averages 10.7 inches while July barely receives 0.41 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)Mayumba climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 82 | 83 | 82 | 81 | 78 | 75 | 76 | 79 | 81 | 81 | 81 |
| Avg temp (°F) | 79 | 80 | 81 | 80 | 78 | 75 | 72 | 73 | 76 | 78 | 79 | 79 |
| Avg low (°F) | 77 | 78 | 79 | 78 | 76 | 72 | 69 | 70 | 73 | 75 | 77 | 77 |
| Precipitation (in) | 9.2 | 8.1 | 7.0 | 6.5 | 3.5 | 0.5 | 0.4 | 0.7 | 1.6 | 6.1 | 10.3 | 10.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 82 | 83 | 82 | 81 | 78 |
| Avg temp (°F) | 79 | 80 | 81 | 80 | 78 | 75 |
| Avg low (°F) | 77 | 78 | 79 | 78 | 76 | 72 |
| Precipitation (in) | 9.2 | 8.1 | 7.0 | 6.5 | 3.5 | 0.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 76 | 79 | 81 | 81 | 81 |
| Avg temp (°F) | 72 | 73 | 76 | 78 | 79 | 79 |
| Avg low (°F) | 69 | 70 | 73 | 75 | 77 | 77 |
| Precipitation (in) | 0.4 | 0.7 | 1.6 | 6.1 | 10.3 | 10.7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 80 | 80 | 78 | 69 | 58 | 62 | 71 | 77 | 80 | 82 | 80 |
| Relative humidity (%) | 87 | 86 | 85 | 87 | 89 | 87 | 87 | 85 | 83 | 83 | 86 | 88 |
| Wind speed (mph) | 6.0 | 6.3 | 6.2 | 5.8 | 5.6 | 5.7 | 5.4 | 6.2 | 7.2 | 7.5 | 7.0 | 6.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 80 | 80 | 78 | 69 | 58 |
| Relative humidity (%) | 87 | 86 | 85 | 87 | 89 | 87 |
| Wind speed (mph) | 6.0 | 6.3 | 6.2 | 5.8 | 5.6 | 5.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 71 | 77 | 80 | 82 | 80 |
| Relative humidity (%) | 87 | 85 | 83 | 83 | 86 | 88 |
| Wind speed (mph) | 5.4 | 6.2 | 7.2 | 7.5 | 7.0 | 6.3 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
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.