Climate averages 1991–2020

Asaba weather
in August.

A hot, wet month: the 11th warmest and the 9th driest of the year.

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

Average high 28.5°C Daytime mean, August
Average low 22.9°C Night-time mean, August
Rainfall 177 mm 23 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Asaba · average highYear overview

August is a hot month in Asaba: daytime highs average 28.5°C and nights cool to about 22.9°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 177 mm of rain on roughly 23 days, which makes August a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average August day.

The nearest other city in this atlas is Onitsha (8 km away). In August its highs average 28.3°C, about as warm as Asaba, with 177 mm of rain.

Among the 143 cities listed in Nigeria, Asaba ranks 31st of 143 for the warmest August highs and joint 31st of 143 for the driest August (rainfall, lowest first). The mean August high of those 143 cities is 27.8°C; Asaba is 0.7°C warmer than that mean.

From August to September, average highs rise by 0.4°C to 28.9°C, and monthly rainfall rises from 177 mm to 200 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

Asaba climate table

1991–2020
Monthly climate averages for Asaba, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 34.4°C23.7°C23.7°C5.11.111.812 h
February 35.0°C24.8°C24.8°C142.911.912 h
March 33.9°C25.1°C25.1°C479.512.112 h
April 32.3°C24.8°C24.8°C9516.012.312 h
May 30.8°C24.3°C24.3°C14223.012.412 h
June 29.2°C23.5°C23.5°C18425.512.512 h
July 28.4°C23.0°C23.0°C17825.912.412 h
August, selected 28.5°C22.9°C22.9°C17723.212.312 h
September 28.9°C23.2°C23.2°C20026.812.212 h
October 29.5°C23.4°C23.4°C15523.112.012 h
November 31.0°C23.7°C23.7°C295.611.812 h
December 33.1°C23.7°C23.7°C4.30.911.812 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 Asaba

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

Onitsha and Nkpor lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.