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Monthly climate in Diffa, Niger

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Diffa features a hot desert climate (BWh). Temperatures typically range between 22 °C (72 °F) and 34 °C (94 °F) through the year, but rarely can drop to 10 °C (51 °F) or can rise to as high as 44 °C (112 °F). The average annual precipitation amounts to about 269 mm (10.6 inches) and receives 35 rainy days on the 1 mm (0.04 inches) threshold annually. Diffa enjoys an average of 3907 hours of sunshine throughout the year, and daylight varies from 11 hours 20 minutes to 12 hours 53 minutes per day.

Monthly average temperatures in Diffa, Niger

The warmest months in Diffa are April, May and June, with daily mean temperatures ranging from 33 to 34 °C (91 - 94 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 22 to 24 °C (72 - 75 °F) throughout the day. On average each year, Diffa experiences 328 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 Diffa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum38°C
(100°F)		40°C
(104°F)		43°C
(110°F)		44°C
(112°F)		44°C
(112°F)		42°C
(109°F)		40°C
(104°F)		37°C
(98°F)		39°C
(103°F)		40°C
(104°F)		39°C
(102°F)		37°C
(98°F)
Mean maximum35°C
(95°F)		37°C
(98°F)		42°C
(108°F)		44°C
(111°F)		44°C
(111°F)		42°C
(107°F)		39°C
(103°F)		36°C
(96°F)		38°C
(101°F)		39°C
(103°F)		38°C
(100°F)		35°C
(96°F)
Average high30°C
(86°F)		32°C
(90°F)		38°C
(100°F)		41°C
(106°F)		41°C
(106°F)		39°C
(102°F)		35°C
(95°F)		32°C
(89°F)		35°C
(95°F)		37°C
(99°F)		35°C
(96°F)		31°C
(88°F)
Daily mean22°C
(72°F)		24°C
(75°F)		30°C
(85°F)		33°C
(91°F)		34°C
(94°F)		33°C
(91°F)		30°C
(86°F)		28°C
(82°F)		29°C
(85°F)		30°C
(86°F)		27°C
(81°F)		23°C
(74°F)
Average low15°C
(59°F)		17°C
(62°F)		22°C
(72°F)		26°C
(78°F)		28°C
(82°F)		28°C
(82°F)		26°C
(78°F)		24°C
(76°F)		25°C
(77°F)		24°C
(75°F)		20°C
(68°F)		16°C
(62°F)
Mean minimum11°C
(53°F)		13°C
(55°F)		18°C
(64°F)		21°C
(71°F)		25°C
(77°F)		24°C
(76°F)		23°C
(74°F)		23°C
(73°F)		23°C
(73°F)		20°C
(69°F)		17°C
(63°F)		13°C
(56°F)
Minimum10°C
(51°F)		11°C
(52°F)		16°C
(60°F)		18°C
(66°F)		24°C
(75°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		23°C
(73°F)		19°C
(67°F)		15°C
(59°F)		12°C
(54°F)

Compare climate in Diffa with other places

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

Monthly average precipitation in Diffa, Niger

Diffa usually has the most precipitation in July, August and September, with an average of 10 rainy days and 78 mm (3.1 inches) of precipitation per month. The driest months in Diffa 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 Diffa. 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)0 (0.0)3 (0.1)22 (0.9)42 (1.7)162 (6.4)29 (1.1)10 (0.4)0 (0.0)0 (0.0)
Average precipitation days (≥ 1 mm)0000048175100

Monthly sunshine hours in Diffa, Niger

The sunniest months in Diffa are May, July and August, when the sun shines an average of 11 hours 7 minutes a day. Least sunny months in Diffa: January, February and November receive an average of 9 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Diffa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours265297334331349335349336326331320327
Mean daily daylight hours11h 25m11h 41m12h 3m12h 25m12h 43m12h 53m12h 48m12h 31m12h 10m11h 48m11h 29m11h 20m

Solar UV radiation in Diffa, Niger

Diffa 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 Diffa UV Index data.

Average daily maximum UV levels by month for Diffa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10111312121113131211109