Climate averages 1991–2020

Oyem weather
in March.

A hot, very wet month: the joint 3rd warmest and the 8th driest of the year.

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

Average high 28.8°C Daytime mean, March

Average low 20.6°C Night-time mean, March

Rainfall 200 mm 25 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

March is a hot month in Oyem: daytime highs average 28.8°C and nights cool to about 20.6°C. By daytime temperature it is the joint 3rd warmest of the 12 months.

Expect about 200 mm of rain on roughly 25 days, which makes March a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 06 min on an average March day.

The nearest other city in this atlas is Ciudad de la Paz (84 km away). In March its highs average 28.5°C, about as warm as Oyem, with 251 mm of rain.

Among the 6 cities listed in Gabon, Oyem ranks 6th of 6 for the warmest March highs and 4th of 6 for the driest March (rainfall, lowest first). The mean March high of those 6 cities is 29.7°C; Oyem is 0.9°C cooler than that mean.

From March to April, average highs stay level at 28.8°C, and monthly rainfall rises from 200 mm to 226 mm.

The annual picture

March in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

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
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, selected	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	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

March 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.