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Monthly climate in Atar, Mauritania

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Atar features a hot desert climate (BWh). Temperatures typically range between 20 °C (68 °F) and 35 °C (95 °F) through the year, but rarely can drop to 7 °C (46 °F) or can rise to as high as 47 °C (117 °F). The average annual precipitation amounts to about 45 mm (1.8 inches) and receives 8 rainy days on the 1 mm (0.04 inches) threshold annually. Atar enjoys an average of 3825 hours of sunshine throughout the year, and daylight varies from 10 hours 53 minutes to 13 hours 20 minutes per day.

Monthly average temperatures in Atar, Mauritania

The warmest months in Atar are June, July and August, with daily mean temperatures ranging from 34 to 35 °C (94 - 95 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 20 to 22 °C (68 - 72 °F) throughout the day. On average each year, Atar experiences 306 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 Atar. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		35°C
(96°F)		40°C
(105°F)		40°C
(104°F)		44°C
(111°F)		45°C
(113°F)		47°C
(117°F)		44°C
(112°F)		44°C
(112°F)		42°C
(107°F)		37°C
(98°F)		33°C
(92°F)
Mean maximum31°C
(88°F)		33°C
(92°F)		37°C
(98°F)		39°C
(102°F)		42°C
(108°F)		43°C
(109°F)		45°C
(113°F)		44°C
(111°F)		43°C
(110°F)		41°C
(106°F)		36°C
(96°F)		32°C
(90°F)
Average high26°C
(79°F)		28°C
(83°F)		31°C
(88°F)		34°C
(93°F)		38°C
(101°F)		40°C
(105°F)		41°C
(106°F)		40°C
(104°F)		39°C
(103°F)		37°C
(98°F)		31°C
(89°F)		27°C
(81°F)
Daily mean20°C
(68°F)		22°C
(72°F)		25°C
(76°F)		28°C
(82°F)		32°C
(89°F)		34°C
(94°F)		35°C
(95°F)		34°C
(94°F)		34°C
(93°F)		31°C
(88°F)		25°C
(78°F)		21°C
(70°F)
Average low14°C
(57°F)		16°C
(60°F)		18°C
(64°F)		21°C
(69°F)		25°C
(77°F)		27°C
(82°F)		28°C
(83°F)		28°C
(83°F)		28°C
(82°F)		25°C
(77°F)		19°C
(67°F)		15°C
(59°F)
Mean minimum9°C
(49°F)		12°C
(53°F)		13°C
(56°F)		16°C
(62°F)		20°C
(68°F)		24°C
(75°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		20°C
(68°F)		14°C
(57°F)		11°C
(52°F)
Minimum7°C
(46°F)		8°C
(47°F)		11°C
(53°F)		12°C
(54°F)		17°C
(64°F)		21°C
(70°F)		24°C
(75°F)		24°C
(75°F)		23°C
(73°F)		18°C
(65°F)		13°C
(56°F)		9°C
(49°F)

Compare climate in Atar with other places

Compare temperature, precipitation, sunshine, UV index in Atar, Mauritania with other places around the world.

Monthly average precipitation in Atar, Mauritania

Atar usually has the most precipitation in August, September and October, with an average of 2 rainy days and 10 mm (0.4 inches) of precipitation per month. The driest months in Atar are January, May and December. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Atar. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)0 (0.0)2 (0.1)4 (0.1)3 (0.1)1 (0.0)3 (0.1)2 (0.1)13 (0.5)12 (0.5)5 (0.2)1 (0.0)1 (0.0)
Average precipitation days (≥ 1 mm)000001034000

Monthly sunshine hours in Atar, Mauritania

The sunniest months in Atar are May, July and August, when the sun shines an average of 11 hours 26 minutes a day. Least sunny months in Atar: January, February and November receive an average of 9 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Atar. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours244285334342364339352346317311291296
Mean daily daylight hours11h 1m11h 27m12h 1m12h 37m13h 6m13h 20m13h 12m12h 47m12h 13m11h 38m11h 8m10h 53m

Solar UV radiation in Atar, Mauritania

Atar 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, February and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Atar UV Index data.

Average daily maximum UV levels by month for Atar. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)89121413131113131197