Climate averages 1991–2020

Oyem weather
in April.

A hot, very wet month: the joint 3rd warmest and the 10th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 28.8°C Daytime mean, April
Average low 20.7°C Night-time mean, April
Rainfall 226 mm 26 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Oyem · average highYear overview

April is a hot month in Oyem: daytime highs average 28.8°C and nights cool to about 20.7°C. By daytime temperature it is the joint 3rd warmest of the 12 months.

Expect about 226 mm of rain on roughly 26 days, which makes April a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 09 min on an average April day.

The nearest other city in this atlas is Ciudad de la Paz (84 km away). In April its highs average 28.4°C, about as warm as Oyem, with 260 mm of rain.

Among the 6 cities listed in Gabon, Oyem ranks 6th of 6 for the warmest April highs and 4th of 6 for the driest April (rainfall, lowest first). The mean April high of those 6 cities is 29.4°C; Oyem is 0.6°C cooler than that mean.

From April to May, average highs fall by 0.5°C to 28.3°C, and monthly rainfall falls from 226 mm to 185 mm.

The annual picture

April in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 1520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3000

Averages 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

1991–2020
Monthly climate averages for Oyem, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.0°C20.3°C20.3°C8416.412.012 h
February 29.0°C20.5°C20.5°C11317.212.112 h
March 28.8°C20.6°C20.6°C20025.412.112 h
April, selected 28.8°C20.7°C20.7°C22626.412.112 h
May 28.3°C20.6°C20.6°C18526.912.212 h
June 27.6°C20.2°C20.2°C14322.712.212 h
July 27.2°C19.8°C19.8°C11920.412.212 h
August 27.4°C20.0°C20.0°C11720.612.212 h
September 27.5°C20.1°C20.1°C22327.212.112 h
October 27.2°C20.1°C20.1°C26129.112.112 h
November 27.4°C19.9°C19.9°C23227.312.012 h
December 28.3°C20.1°C20.1°C11620.412.012 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

April in nearby cities

Distance from Oyem

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 limits

How 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.