Nnewi climate

Name: Nnewi
Address: NG

Nnewi is warmest in February, with average highs of 34 °C, and coldest in August, when nights average 22 °C. September is the wettest month (282 mm) and December the driest (13 mm). Figures are 1991–2020 climate normals.

Across a full year Nnewi averages 1,945 mm of rain and 360 days above 25 °C.

Nigeria · population 193,987 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month February 34 °C
Coldest month August 22 °C
Driest month December 13 mm
Wettest month September 282 mm
Least cloud December 53 % cloud
Hottest on record February 39 °C
Coldest on record January 16 °C

What to expectNnewi through the year

Nnewi has a clear annual cycle: average daily highs run from 28 °C in August to 34 °C in February, a swing of 4.0 °C in mean temperature across the year.

Counted across a normal year, 360 days a year reach 25 °C, 185 of them reach 30 °C. The warmest reading in the 1991–2020 record is 39 °C, in February.

Rain is strongly seasonal. September averages 282 mm against 13 mm in December — 22 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	33.9 °C	15 mm	57 %
February	34.4 °C	35 mm	67 %
March	33.1 °C	97 mm	81 %
April	31.3 °C	174 mm	87 %
May	30.0 °C	234 mm	87 %
June	28.5 °C	258 mm	87 %
July	27.7 °C	254 mm	90 %
August	27.8 °C	237 mm	90 %
September	28.2 °C	282 mm	91 %
October	28.8 °C	264 mm	90 %
November	30.3 °C	81 mm	75 %
December	32.6 °C	13 mm	53 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	33.9 °C	22.3 °C	27.5 °C	37.2 °C	15.5 °C	31	31
February	34.4 °C	23.4 °C	28.1 °C	38.9 °C	17.4 °C	28	28
March	33.1 °C	24.0 °C	27.5 °C	38.5 °C	17.9 °C	31	29
April	31.3 °C	23.7 °C	26.6 °C	37.1 °C	21.5 °C	30	24
May	30.0 °C	23.3 °C	25.9 °C	33.4 °C	21.3 °C	31	18
June	28.5 °C	22.6 °C	24.8 °C	31.4 °C	20.6 °C	29	3
July	27.7 °C	22.1 °C	24.1 °C	30.9 °C	19.1 °C	30	0
August	27.8 °C	22.1 °C	24.1 °C	31.0 °C	19.6 °C	29	1
September	28.2 °C	22.3 °C	24.4 °C	30.9 °C	20.5 °C	29	1
October	28.8 °C	22.5 °C	24.9 °C	31.3 °C	20.6 °C	31	4
November	30.3 °C	22.7 °C	25.8 °C	33.6 °C	18.8 °C	30	17
December	32.6 °C	22.3 °C	26.9 °C	35.9 °C	16.8 °C	31	30

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	15 mm	3	12 h/day	57 %	62 %	13 km/h
February	35 mm	7	12 h/day	67 %	67 %	14 km/h
March	97 mm	16	12 h/day	81 %	77 %	14 km/h
April	174 mm	22	12 h/day	87 %	83 %	12 km/h
May	234 mm	27	12 h/day	87 %	86 %	11 km/h
June	258 mm	28	12 h/day	87 %	88 %	11 km/h
July	254 mm	28	12 h/day	90 %	88 %	11 km/h
August	237 mm	27	12 h/day	90 %	87 %	12 km/h
September	282 mm	29	12 h/day	91 %	88 %	11 km/h
October	264 mm	28	12 h/day	90 %	88 %	9.7 km/h
November	81 mm	13	12 h/day	75 %	83 %	9.9 km/h
December	13 mm	3	12 h/day	53 %	70 %	11 km/h

How Nnewi compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Nnewi	34 °C	22 °C	1,945 mm	360
Atani · Nigeria	35 °C	23 °C	1,517 mm	363
Onitsha · Nigeria	35 °C	23 °C	1,264 mm	363
Awka · Nigeria	35 °C	23 °C	1,492 mm	362
Owerri · Nigeria	34 °C	22 °C	2,337 mm	360
Enugu · Nigeria	35 °C	22 °C	1,614 mm	363
Umuahia · Nigeria	34 °C	22 °C	2,012 mm	358

Planning a trip? See the best time to visit Nnewi.

QuestionsCommon questions about Nnewi’s climate

When is the best time to visit Nnewi?

That depends on what you want, so the honest answer is a comparison rather than a single month. July, August, September sit closest to 20 °C on average, February is the warmest month and December the driest. The month-by-month table above has the full picture.

How hot does Nnewi get?

In February, the warmest month, daily highs average 34 °C. About 185 days a year pass 30 °C. The highest value in the 1991–2020 record is 39 °C.

How cold does it get in winter?

Nights average 22 °C in August, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Nnewi?

September, averaging 282 mm over 29 days with rain. The driest month is December with 13 mm. The year as a whole averages 1,945 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Nnewi rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.