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Monthly climate in Nioro, Mali

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Nioro features a hot semi-arid climate (BSh). Temperatures typically range between 24 °C (75 °F) and 36 °C (97 °F) through the year, but rarely can drop to 9 °C (48 °F) or can rise to as high as 46 °C (115 °F). The average annual precipitation amounts to about 332 mm (13.1 inches) and receives 41 rainy days on the 1 mm (0.04 inches) threshold annually. Nioro enjoys an average of 3774 hours of sunshine throughout the year, and daylight varies from 11 hours 13 minutes to 13 hours 0 minutes per day.

Monthly average temperatures in Nioro, Mali

The warmest months in Nioro are April, May and June, with daily mean temperatures ranging from 34 to 36 °C (93 - 97 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 24 to 27 °C (75 - 80 °F) throughout the day. On average each year, Nioro 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 Nioro. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum39°C
(102°F)		41°C
(106°F)		44°C
(111°F)		44°C
(112°F)		46°C
(115°F)		45°C
(113°F)		42°C
(108°F)		39°C
(102°F)		41°C
(107°F)		42°C
(109°F)		40°C
(105°F)		39°C
(102°F)
Mean maximum36°C
(98°F)		39°C
(103°F)		42°C
(108°F)		44°C
(111°F)		45°C
(113°F)		43°C
(110°F)		40°C
(104°F)		37°C
(99°F)		39°C
(102°F)		41°C
(106°F)		40°C
(104°F)		38°C
(100°F)
Average high32°C
(89°F)		34°C
(94°F)		38°C
(100°F)		41°C
(106°F)		42°C
(108°F)		40°C
(105°F)		35°C
(96°F)		33°C
(92°F)		35°C
(95°F)		38°C
(102°F)		37°C
(98°F)		33°C
(92°F)
Daily mean24°C
(75°F)		27°C
(80°F)		30°C
(86°F)		34°C
(93°F)		36°C
(97°F)		35°C
(95°F)		31°C
(88°F)		29°C
(84°F)		30°C
(85°F)		31°C
(88°F)		29°C
(84°F)		25°C
(77°F)
Average low16°C
(61°F)		19°C
(67°F)		22°C
(72°F)		26°C
(79°F)		29°C
(85°F)		29°C
(85°F)		27°C
(80°F)		25°C
(78°F)		25°C
(78°F)		25°C
(76°F)		21°C
(71°F)		18°C
(64°F)
Mean minimum12°C
(54°F)		14°C
(58°F)		17°C
(62°F)		22°C
(72°F)		25°C
(77°F)		26°C
(79°F)		24°C
(75°F)		23°C
(73°F)		23°C
(74°F)		20°C
(68°F)		17°C
(63°F)		14°C
(57°F)
Minimum9°C
(48°F)		12°C
(54°F)		12°C
(54°F)		19°C
(67°F)		22°C
(72°F)		24°C
(75°F)		23°C
(74°F)		22°C
(72°F)		23°C
(73°F)		18°C
(64°F)		13°C
(56°F)		12°C
(54°F)

Compare climate in Nioro with other places

Compare temperature, precipitation, sunshine, UV index in Nioro, Mali with other places around the world.

Monthly average precipitation in Nioro, Mali

Nioro usually has the most precipitation in July, August and September, with an average of 11 rainy days and 100 mm (3.9 inches) of precipitation per month. The driest months in Nioro 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 Nioro. 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)4 (0.2)14 (0.6)71 (2.8)161 (6.3)67 (2.6)13 (0.5)0 (0.0)0 (0.0)
Average precipitation days (≥ 1 mm)00001311149300

Monthly sunshine hours in Nioro, Mali

The sunniest months in Nioro are March, May and July, when the sun shines an average of 10 hours 55 minutes a day. Least sunny months in Nioro: January, February and November receive an average of 9 hours 22 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Nioro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours253289336333341328337310312316300313
Mean daily daylight hours11h 19m11h 38m12h 2m12h 28m12h 49m13h 0m12h 54m12h 35m12h 11m11h 46m11h 24m11h 13m

Solar UV radiation in Nioro, Mali

Nioro experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 14, 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 Nioro UV Index data.

Average daily maximum UV levels by month for Nioro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)9111214121213131311109