Climate averages 1991–2020

Owerri weather
in October.

A hot, very wet month: the 8th warmest and the 11th driest of the year.

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

Average high 29.3°C Daytime mean, October
Average low 22.4°C Night-time mean, October
Rainfall 302 mm 30 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Owerri · average highYear overview

October is a hot month in Owerri: daytime highs average 29.3°C and nights cool to about 22.4°C. By daytime temperature it is the 8th warmest of the 12 months.

Expect about 302 mm of rain on roughly 30 days, which makes October a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average October day.

The nearest other city in this atlas is Ihiala (46 km away). In October its highs average 28.7°C, 0.6°C cooler than Owerri, with 264 mm of rain.

Among the 143 cities listed in Nigeria, Owerri ranks joint 64th of 143 for the warmest October highs and 130th of 143 for the driest October (rainfall, lowest first). The mean October high of those 143 cities is 30.0°C; Owerri is 0.6°C cooler than that mean.

From October to November, average highs rise by 1.5°C to 30.8°C, and monthly rainfall falls from 302 mm to 115 mm.

The annual picture

October 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 3500

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

Every month, side by side

Owerri climate table

1991–2020
Monthly climate averages for Owerri, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 34.4°C22.9°C22.9°C255.611.812 h
February 34.4°C23.7°C23.7°C5310.011.912 h
March 32.9°C23.9°C23.9°C13420.512.112 h
April 31.5°C23.6°C23.6°C21324.812.212 h
May 30.4°C23.3°C23.3°C26428.312.412 h
June 28.8°C22.5°C22.5°C29628.412.412 h
July 28.1°C22.0°C22.0°C30128.912.412 h
August 28.3°C22.1°C22.1°C27227.012.312 h
September 28.7°C22.2°C22.2°C31529.212.212 h
October, selected 29.3°C22.4°C22.4°C30229.712.012 h
November 30.8°C22.7°C22.7°C11518.111.912 h
December 33.0°C22.9°C22.9°C235.711.812 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

October in nearby cities

Distance from Owerri

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