Climate averages 1991–2020
Oyem weather
in May.
A hot, very wet month: the joint 5th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Oyem: daytime highs average 28.3°C and nights cool to about 20.6°C. By daytime temperature it is the joint 5th warmest of the 12 months.
Expect about 185 mm of rain on roughly 27 days, which makes May a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average May day.
The nearest other city in this atlas is Ciudad de la Paz (84 km away). In May its highs average 28.0°C, about as warm as Oyem, with 241 mm of rain.
Among the 6 cities listed in Gabon, Oyem ranks 6th of 6 for the warmest May highs and 4th of 6 for the driest May (rainfall, lowest first). The mean May high of those 6 cities is 28.9°C; Oyem is 0.7°C cooler than that mean.
From May to June, average highs fall by 0.6°C to 27.6°C, and monthly rainfall falls from 185 mm to 143 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Oyem climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.0°C20.3°C | 20.3°C | 84 | 16.4 | 12.012 h |
| February | 29.0°C20.5°C | 20.5°C | 113 | 17.2 | 12.112 h |
| March | 28.8°C20.6°C | 20.6°C | 200 | 25.4 | 12.112 h |
| April | 28.8°C20.7°C | 20.7°C | 226 | 26.4 | 12.112 h |
| May, selected | 28.3°C20.6°C | 20.6°C | 185 | 26.9 | 12.212 h |
| June | 27.6°C20.2°C | 20.2°C | 143 | 22.7 | 12.212 h |
| July | 27.2°C19.8°C | 19.8°C | 119 | 20.4 | 12.212 h |
| August | 27.4°C20.0°C | 20.0°C | 117 | 20.6 | 12.212 h |
| September | 27.5°C20.1°C | 20.1°C | 223 | 27.2 | 12.112 h |
| October | 27.2°C20.1°C | 20.1°C | 261 | 29.1 | 12.112 h |
| November | 27.4°C19.9°C | 19.9°C | 232 | 27.3 | 12.012 h |
| December | 28.3°C20.1°C | 20.1°C | 116 | 20.4 | 12.012 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Ciudad de la Paz in MayEquatorial Guinea · 84 kmHigh 28.0°C · Low 20.6°C · 241 mm rain
- Ébolowa in MayCameroon · 152 kmHigh 28.3°C · Low 21.2°C · 199 mm rain
- Sangmélima in MayCameroon · 155 kmHigh 28.3°C · Low 20.8°C · 150 mm rain
- Bata in MayEquatorial Guinea · 204 kmHigh 28.7°C · Low 23.9°C · 265 mm rain
- Mbalmayo in MayCameroon · 213 kmHigh 28.1°C · Low 21.1°C · 141 mm rain
- Kribi in MayCameroon · 238 kmHigh 28.0°C · Low 24.4°C · 281 mm rain
- Yaoundé in MayCameroon · 252 kmHigh 27.7°C · Low 21.0°C · 172 mm rain
- Libreville in MayGabon · 272 kmHigh 28.8°C · Low 24.4°C · 244 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Oyem) is explained once on the Oyem year overview and on the Sources, method and limits page.