Climate averages 1991–2020

Oyem weather
in January.

A hot, moderately wet month: one of the warmest and the driest of the year.

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

Average high 29.0°C Daytime mean, January

Average low 20.3°C Night-time mean, January

Rainfall 84 mm 16 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

January is a hot month in Oyem: daytime highs average 29.0°C and nights cool to about 20.3°C. By daytime temperature it is one of the warmest months of the year.

Expect about 84 mm of rain on roughly 16 days, which makes January a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average January day.

The nearest other city in this atlas is Ciudad de la Paz (84 km away). In January its highs average 28.3°C, 0.7°C cooler than Oyem, with 138 mm of rain.

Among the 6 cities listed in Gabon, Oyem ranks 4th of 6 for the warmest January highs and 1st of 6 for the driest January (rainfall, lowest first). The mean January high of those 6 cities is 29.2°C; Oyem is 0.2°C cooler than that mean.

From January to February, average highs rise by 0.1°C to 29.0°C, and monthly rainfall rises from 84 mm to 113 mm.

The annual picture

January 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, selected	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	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

January 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.