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Port-Gentil, Gabon climate
Aw Tropical savanna (dry winter)
Port-Gentil has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is March with an average daily high near 31°C, while the coldest is July averaging around 22°C at night. Precipitation totals about 1726 mm a year and is strongly seasonal — November alone averages 305 mm while June barely receives 12 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)Port-Gentil climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 31 | 31 | 31 | 30 | 28 | 27 | 27 | 28 | 29 | 29 | 30 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 27 | 26 | 24 | 25 | 26 | 27 | 27 | 27 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 24 | 22 | 23 | 24 | 25 | 24 | 25 |
| Precipitation (mm) | 219 | 215 | 218 | 202 | 119 | 12 | 12 | 13 | 37 | 171 | 305 | 204 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 31 | 31 | 31 | 30 | 28 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 27 | 26 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 24 |
| Precipitation (mm) | 219 | 215 | 218 | 202 | 119 | 12 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 27 | 28 | 29 | 29 | 30 |
| Avg temp (°C) | 24 | 25 | 26 | 27 | 27 | 27 |
| Avg low (°C) | 22 | 23 | 24 | 25 | 24 | 25 |
| Precipitation (mm) | 12 | 13 | 37 | 171 | 305 | 204 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 78 | 81 | 80 | 74 | 66 | 67 | 73 | 73 | 77 | 80 | 75 |
| Relative humidity (%) | 85 | 84 | 84 | 85 | 87 | 86 | 85 | 84 | 85 | 86 | 87 | 86 |
| Wind speed (km/h) | 12.6 | 13.2 | 13.2 | 12.7 | 13.2 | 15.6 | 15.5 | 15.6 | 15.7 | 15.3 | 14.4 | 12.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 78 | 81 | 80 | 74 | 66 |
| Relative humidity (%) | 85 | 84 | 84 | 85 | 87 | 86 |
| Wind speed (km/h) | 12.6 | 13.2 | 13.2 | 12.7 | 13.2 | 15.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 73 | 73 | 77 | 80 | 75 |
| Relative humidity (%) | 85 | 84 | 85 | 86 | 87 | 86 |
| Wind speed (km/h) | 15.5 | 15.6 | 15.7 | 15.3 | 14.4 | 12.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Port Gentil, a weather station, about 3 km from the city centre. The underlying daily records come from NOAA's global station network.
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.