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Monthly climate in Arak, Iran

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Arak features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 1 °C (33 °F) and 27 °C (81 °F) through the year, but rarely can drop to -20 °C (-4 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 350 mm (13.8 inches) and receives 61 rainy days on the 1 mm (0.04 inches) threshold annually. Arak enjoys an average of 3958 hours of sunshine throughout the year, and daylight varies from 9 hours 54 minutes to 14 hours 22 minutes per day.

Monthly average temperatures in Arak, Iran

The warmest months in Arak are June, July and August, with daily mean temperatures ranging from 24 to 27 °C (76 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 3 °C (33 - 38 °F) throughout the day. On average each year, Arak experiences 121 days above 25 °C (77.0 °F) and 86 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Arak. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum16°C
(62°F)		17°C
(64°F)		25°C
(78°F)		27°C
(81°F)		32°C
(89°F)		37°C
(99°F)		38°C
(100°F)		38°C
(100°F)		34°C
(94°F)		28°C
(83°F)		22°C
(72°F)		18°C
(64°F)
Mean maximum13°C
(56°F)		15°C
(59°F)		20°C
(68°F)		23°C
(74°F)		30°C
(87°F)		35°C
(95°F)		37°C
(98°F)		36°C
(97°F)		33°C
(92°F)		28°C
(82°F)		19°C
(67°F)		15°C
(60°F)
Average high7°C
(45°F)		9°C
(48°F)		13°C
(56°F)		18°C
(65°F)		24°C
(75°F)		32°C
(89°F)		34°C
(94°F)		33°C
(92°F)		30°C
(86°F)		22°C
(71°F)		13°C
(55°F)		9°C
(49°F)
Daily mean1°C
(33°F)		2°C
(37°F)		7°C
(45°F)		12°C
(54°F)		17°C
(63°F)		24°C
(76°F)		27°C
(81°F)		26°C
(79°F)		22°C
(72°F)		14°C
(58°F)		7°C
(45°F)		3°C
(38°F)
Average low-5°C
(24°F)		-3°C
(27°F)		1°C
(35°F)		6°C
(44°F)		11°C
(52°F)		16°C
(61°F)		20°C
(68°F)		18°C
(65°F)		14°C
(57°F)		8°C
(46°F)		2°C
(36°F)		-2°C
(29°F)
Mean minimum-13°C
(8°F)		-11°C
(12°F)		-5°C
(23°F)		1°C
(33°F)		7°C
(44°F)		13°C
(56°F)		16°C
(62°F)		15°C
(59°F)		10°C
(50°F)		3°C
(38°F)		-3°C
(27°F)		-7°C
(21°F)
Minimum-20°C
(-4°F)		-14°C
(7°F)		-10°C
(15°F)		-2°C
(29°F)		6°C
(43°F)		11°C
(52°F)		16°C
(60°F)		14°C
(57°F)		10°C
(49°F)		2°C
(36°F)		-6°C
(21°F)		-8°C
(17°F)

Compare climate in Arak with other places

Compare temperature, precipitation, sunshine, UV index in Arak, Iran with other places around the world.

Monthly average precipitation in Arak, Iran

Arak usually has the most precipitation in March, April and November, with an average of 9 rainy days and 57 mm (2.3 inches) of precipitation per month. The driest months in Arak are July, August and September. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Arak. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)33 (1.3)46 (1.8)55 (2.2)71 (2.8)41 (1.6)5 (0.2)2 (0.1)1 (0.0)1 (0.0)16 (0.6)46 (1.8)33 (1.3)
Average precipitation days (≥ 1 mm)67912101000475

Monthly sunshine hours in Arak, Iran

The sunniest months in Arak are May, June and July, when the sun shines an average of 12 hours 50 minutes a day. Least sunny months in Arak: January, February and November receive an average of 8 hours 36 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Arak. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours230274327344386400394380349323270277
Mean daily daylight hours10h 9m10h 57m11h 58m13h 2m13h 56m14h 22m14h 8m13h 21m12h 21m11h 17m10h 22m9h 54m

Solar UV radiation in Arak, Iran

Arak experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 12 - 14, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Arak UV Index data.

Average daily maximum UV levels by month for Arak. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)5710101413121110854