Climate averages 1991–2020

Effium weather
in August.

A hot, very wet month: one of the coolest and the 11th driest of the year.

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

Average high 28.8°C Daytime mean, August
Average low 22.7°C Night-time mean, August
Rainfall 230 mm 26 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Effium · average highYear overview

August is a hot month in Effium: daytime highs average 28.8°C and nights cool to about 22.7°C. By daytime temperature it is one of the coolest months of the year.

Expect about 230 mm of rain on roughly 26 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 20 min on an average August day.

The nearest other city in this atlas is Isieke (28 km away). In August its highs average 29.1°C, about as warm as Effium, with 228 mm of rain.

Among the 143 cities listed in Nigeria, Effium ranks joint 24th of 143 for the warmest August highs and 93rd of 143 for the driest August (rainfall, lowest first). The mean August high of those 143 cities is 27.8°C; Effium is 1.1°C warmer than that mean.

From August to September, average highs rise by 0.5°C to 29.4°C, and monthly rainfall rises from 230 mm to 241 mm.

The annual picture

August 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. 2025303540 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 2500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Effium climate table

1991–2020
Monthly climate averages for Effium, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 35.3°C23.6°C23.6°C3.31.011.812 h
February 36.2°C24.9°C24.9°C102.211.912 h
March 35.2°C25.6°C25.6°C315.912.112 h
April 33.3°C25.2°C25.2°C9012.412.312 h
May 31.4°C24.4°C24.4°C15320.812.412 h
June 29.7°C23.4°C23.4°C21123.712.512 h
July 28.8°C22.8°C22.8°C21126.612.512 h
August, selected 28.8°C22.7°C22.7°C23026.112.312 h
September 29.4°C22.8°C22.8°C24126.812.212 h
October 30.0°C23.2°C23.2°C16923.412.012 h
November 31.7°C23.7°C23.7°C285.411.812 h
December 34.1°C23.4°C23.4°C2.70.611.712 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

August in nearby cities

Distance from Effium

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 Effium) is explained once on the Effium year overview and on the Sources, method and limits page.