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Population Review

Climate normals · 1970–2000

Onitsha Climate

Onitsha is a city in Nigeria (25) with a population of about 1,553,000. Its average annual temperature is 27.1°C (81°F), with roughly 1811 mm of rain per year.

27.1°C

Avg Temp

1811

Precip (mm/yr)

Mar

Hottest Month

Jul

Coldest Month


Onitsha Climate

Onitsha has an average annual temperature of 27.1°C (81°F) and receives about 1811 mm of precipitation per year. The warmest month is March and the coldest is July. Figures are 1970–2000 climate normals.

27.1°C

Avg Temp

1811

Precip (mm/yr)

Mar

Hottest Month

Jul

Coldest Month

15°25°35°310mmJFMAMJJASOND
Avg temp (°C) Precipitation (mm)
Onitsha — monthly temperature & precipitation (1970–2000 normals) · Source: WorldClim 2.1
MonthAvg (°C/°F)Precip
January27° / 81°15 mm
February28° / 83°29 mm
March29° / 84°74 mm
April29° / 84°140 mm
May28° / 82°220 mm
June27° / 80°241 mm
July26° / 78°268 mm
August26° / 78°214 mm
September26° / 79°310 mm
October27° / 80°237 mm
November28° / 82°53 mm
December27° / 81°10 mm

1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.

Best time to visit Onitsha

The most comfortable months to visit Onitsha are typically December, January and February, when temperatures are mildest and rainfall is relatively low. The hottest month is March (around 34°C high). The coldest is July (near 22°C low). September is usually the wettest month.

DecemberJanuaryFebruary

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Frequently Asked Questions

The most comfortable months to visit Onitsha are typically December, January and February, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).

Onitsha, Nigeria has an average annual temperature of 27.1°C and about 1811 mm of precipitation per year. The warmest month is March and the coldest is July.

In March, the hottest month, daily highs in Onitsha average about 34°C (93°F).

Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.