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Monthly climate in Niamey, Niger

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Niamey features a hot semi-arid climate (BSh). Temperatures typically range between 24 °C (75 °F) and 35 °C (95 °F) through the year, but rarely can drop to 13 °C (56 °F) or can rise to as high as 44 °C (112 °F). The average annual precipitation amounts to about 286 mm (11.3 inches) and receives 41 rainy days on the 1 mm (0.04 inches) threshold annually. Niamey enjoys an average of 3922 hours of sunshine throughout the year, and daylight varies from 11 hours 19 minutes to 12 hours 53 minutes per day.

Monthly average temperatures in Niamey, Niger

The warmest months in Niamey are April, May and June, with daily mean temperatures ranging from 33 to 35 °C (91 - 95 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 24 to 26 °C (75 - 80 °F) throughout the day. On average each year, Niamey experiences 329 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Niamey. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum38°C
(100°F)		39°C
(103°F)		42°C
(108°F)		44°C
(111°F)		44°C
(112°F)		43°C
(110°F)		40°C
(105°F)		37°C
(99°F)		39°C
(102°F)		41°C
(106°F)		40°C
(104°F)		38°C
(101°F)
Mean maximum36°C
(96°F)		38°C
(100°F)		42°C
(108°F)		43°C
(110°F)		43°C
(110°F)		42°C
(108°F)		39°C
(102°F)		36°C
(96°F)		38°C
(101°F)		40°C
(104°F)		39°C
(102°F)		36°C
(97°F)
Average high32°C
(89°F)		34°C
(93°F)		39°C
(102°F)		41°C
(106°F)		41°C
(105°F)		38°C
(100°F)		34°C
(93°F)		32°C
(90°F)		34°C
(94°F)		37°C
(99°F)		37°C
(99°F)		33°C
(92°F)
Daily mean24°C
(75°F)		26°C
(80°F)		31°C
(89°F)		34°C
(94°F)		35°C
(95°F)		33°C
(91°F)		30°C
(86°F)		28°C
(83°F)		29°C
(85°F)		31°C
(88°F)		29°C
(84°F)		25°C
(78°F)
Average low17°C
(63°F)		20°C
(67°F)		24°C
(76°F)		27°C
(82°F)		29°C
(85°F)		28°C
(82°F)		26°C
(79°F)		25°C
(77°F)		25°C
(78°F)		25°C
(78°F)		21°C
(70°F)		18°C
(65°F)
Mean minimum14°C
(57°F)		16°C
(61°F)		20°C
(69°F)		23°C
(74°F)		26°C
(79°F)		25°C
(78°F)		23°C
(74°F)		23°C
(73°F)		23°C
(74°F)		21°C
(70°F)		18°C
(65°F)		16°C
(60°F)
Minimum13°C
(56°F)		14°C
(58°F)		19°C
(66°F)		21°C
(70°F)		25°C
(77°F)		24°C
(76°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		19°C
(67°F)		17°C
(63°F)		14°C
(58°F)

Compare climate in Niamey with other places

Compare temperature, precipitation, sunshine, UV index in Niamey, Niger with other places around the world.

Monthly average precipitation in Niamey, Niger

Niamey usually has the most precipitation in July, August and September, with an average of 10 rainy days and 80 mm (3.2 inches) of precipitation per month. The driest months in Niamey are January, November and December. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Niamey. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)0 (0.0)0 (0.0)0 (0.0)1 (0.0)8 (0.3)24 (0.9)50 (2.0)137 (5.4)53 (2.1)13 (0.5)0 (0.0)0 (0.0)
Average precipitation days (≥ 1 mm)0000269166200

Monthly sunshine hours in Niamey, Niger

The sunniest months in Niamey are May, July and August, when the sun shines an average of 11 hours 11 minutes a day. Least sunny months in Niamey: January, February and November receive an average of 9 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Niamey. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours267302333329346339352341327331318330
Mean daily daylight hours11h 24m11h 41m12h 3m12h 25m12h 44m12h 53m12h 48m12h 32m12h 10m11h 48m11h 29m11h 19m

Solar UV radiation in Niamey, Niger

Niamey experiences the highest level of ultraviolet (UV) radiation in March, July and August, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Niamey UV Index data.

Average daily maximum UV levels by month for Niamey. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10121312111213131211109