Niamey climate

Name: Niamey
Address: NE

Niamey is warmest in April, with average highs of 41 °C, and coldest in January, when nights average 16 °C. August is the wettest month (125 mm) and January the driest (0 mm). Figures are 1991–2020 climate normals.

Across a full year Niamey averages 272 mm of rain and 365 days above 25 °C.

Niger · population 1,323,691 · 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 April 41 °C
Coldest month January 16 °C
Driest month January 0 mm
Wettest month August 125 mm
Least cloud February 24 % cloud
Hottest on record April 45 °C
Coldest on record January 9.5 °C

What to expectNiamey through the year

Niamey has a clear annual cycle: average daily highs run from 32 °C in January to 41 °C in April, a swing of 11 °C in mean temperature across the year.

Counted across a normal year, 365 days a year reach 25 °C, 343 of them reach 30 °C. The warmest reading in the 1991–2020 record is 45 °C, in April.

Rain is spread fairly evenly through the year, from 0 mm in January to 125 mm in August. There is no dry season to aim for.

Month by month

Month	Avg high	Rainfall	Cloud
January	31.6 °C	0 mm	26 %
February	34.7 °C	under 1 mm	24 %
March	38.4 °C	1 mm	36 %
April	40.8 °C	2 mm	44 %
May	40.4 °C	9 mm	45 %
June	38.3 °C	21 mm	39 %
July	34.7 °C	63 mm	53 %
August	32.2 °C	125 mm	65 %
September	34.6 °C	42 mm	48 %
October	37.4 °C	8 mm	37 %
November	36.0 °C	under 1 mm	29 %
December	32.7 °C	under 1 mm	26 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	31.6 °C	15.9 °C	23.3 °C	38.5 °C	9.5 °C	31	22
February	34.7 °C	18.1 °C	26.1 °C	41.6 °C	11.3 °C	28	27
March	38.4 °C	21.4 °C	29.9 °C	42.6 °C	12.4 °C	31	31
April	40.8 °C	25.3 °C	33.3 °C	44.5 °C	16.4 °C	30	30
May	40.4 °C	28.0 °C	34.2 °C	44.3 °C	18.0 °C	31	31
June	38.3 °C	27.3 °C	32.6 °C	43.0 °C	23.2 °C	30	30
July	34.7 °C	25.4 °C	29.8 °C	41.1 °C	21.3 °C	31	30
August	32.2 °C	24.2 °C	27.8 °C	38.7 °C	20.9 °C	31	26
September	34.6 °C	24.7 °C	29.4 °C	41.3 °C	21.5 °C	30	29
October	37.4 °C	24.3 °C	30.9 °C	41.4 °C	16.6 °C	31	31
November	36.0 °C	19.4 °C	27.6 °C	39.1 °C	13.7 °C	30	30
December	32.7 °C	16.6 °C	24.3 °C	38.0 °C	10.9 °C	31	26

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	0 mm	0	11 h/day	26 %	19 %	19 km/h
February	under 1 mm	0	12 h/day	24 %	15 %	19 km/h
March	1 mm	0	12 h/day	36 %	15 %	19 km/h
April	2 mm	1	12 h/day	44 %	23 %	19 km/h
May	9 mm	2	13 h/day	45 %	38 %	21 km/h
June	21 mm	4	13 h/day	39 %	50 %	21 km/h
July	63 mm	10	13 h/day	53 %	63 %	19 km/h
August	125 mm	15	13 h/day	65 %	74 %	17 km/h
September	42 mm	6	12 h/day	48 %	66 %	16 km/h
October	8 mm	2	12 h/day	37 %	44 %	16 km/h
November	under 1 mm	0	12 h/day	29 %	24 %	16 km/h
December	under 1 mm	0	11 h/day	26 %	21 %	18 km/h

Where Niamey ranks

Ranking	Position	Value
The driest places in Africa in January	3rd of 50	0 mm
The driest places in the world in January	3rd of 50	0 mm
The warmest places in Africa in April	5th of 50	41 °C
The warmest places in Africa in May	5th of 50	40 °C
The warmest places in the world in April	5th of 50	41 °C
The warmest places in Africa in October	6th of 50	37 °C

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

QuestionsCommon questions about Niamey’s climate

When is the best time to visit Niamey?

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

How hot does Niamey get?

In April, the warmest month, daily highs average 41 °C. About 343 days a year pass 30 °C. The highest value in the 1991–2020 record is 45 °C.

How cold does it get in winter?

Nights average 16 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Niamey?

August, averaging 125 mm over 15 days with rain. The driest month is January with 0 mm. The year as a whole averages 272 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 Niamey 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
Data point: 13.514°, 2.110° (the coordinates the reanalysis values are taken for)
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.