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Monthly climate in Chalus, Iran

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Chalus features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 10 °C (51 °F) and 27 °C (80 °F) through the year, but rarely can drop to 1 °C (34 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 1403 mm (55.2 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually. Chalus enjoys an average of 3600 hours of sunshine throughout the year, and daylight varies from 9 hours 41 minutes to 14 hours 36 minutes per day.

Monthly average temperatures in Chalus, Iran

The warmest months in Chalus are June, July and August, with daily mean temperatures ranging from 24 to 27 °C (76 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 10 to 12 °C (51 - 53 °F) throughout the day. On average each year, Chalus experiences 85 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 Chalus. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(68°F)		21°C
(70°F)		25°C
(78°F)		27°C
(80°F)		31°C
(87°F)		32°C
(89°F)		32°C
(90°F)		33°C
(91°F)		34°C
(93°F)		31°C
(87°F)		28°C
(83°F)		23°C
(74°F)
Mean maximum17°C
(63°F)		17°C
(63°F)		21°C
(71°F)		24°C
(75°F)		28°C
(82°F)		29°C
(84°F)		31°C
(89°F)		31°C
(88°F)		30°C
(87°F)		27°C
(81°F)		23°C
(74°F)		19°C
(67°F)
Average high12°C
(54°F)		12°C
(54°F)		14°C
(57°F)		16°C
(62°F)		22°C
(71°F)		26°C
(79°F)		28°C
(83°F)		28°C
(82°F)		26°C
(78°F)		21°C
(71°F)		17°C
(62°F)		14°C
(58°F)
Daily mean11°C
(52°F)		10°C
(51°F)		12°C
(53°F)		14°C
(58°F)		20°C
(68°F)		24°C
(76°F)		27°C
(80°F)		26°C
(80°F)		24°C
(76°F)		20°C
(68°F)		15°C
(60°F)		13°C
(56°F)
Average low9°C
(49°F)		9°C
(48°F)		10°C
(50°F)		13°C
(55°F)		18°C
(64°F)		23°C
(73°F)		25°C
(78°F)		25°C
(77°F)		23°C
(73°F)		19°C
(66°F)		14°C
(58°F)		12°C
(53°F)
Mean minimum5°C
(41°F)		4°C
(40°F)		7°C
(44°F)		8°C
(47°F)		14°C
(57°F)		19°C
(67°F)		22°C
(72°F)		22°C
(72°F)		18°C
(65°F)		15°C
(59°F)		9°C
(48°F)		8°C
(47°F)
Minimum3°C
(37°F)		1°C
(34°F)		3°C
(39°F)		7°C
(45°F)		12°C
(54°F)		17°C
(62°F)		21°C
(69°F)		19°C
(67°F)		17°C
(63°F)		13°C
(55°F)		8°C
(47°F)		6°C
(42°F)

Compare climate in Chalus with other places

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

Monthly average precipitation in Chalus, Iran

Chalus usually has the most precipitation in October, November and December, with an average of 16 rainy days and 207 mm (8.1 inches) of precipitation per month. The driest months in Chalus are May, June and August. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chalus. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)121 (4.7)137 (5.4)95 (3.7)89 (3.5)49 (1.9)27 (1.1)88 (3.5)59 (2.3)119 (4.7)225 (8.9)247 (9.7)148 (5.8)
Average precipitation days (≥ 1 mm)1213141396131215151716

Monthly sunshine hours in Chalus, Iran

The sunniest months in Chalus are May, June and July, when the sun shines an average of 12 hours 4 minutes a day. Least sunny months in Chalus: January, February and November receive an average of 7 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chalus. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours203242302308365381364352316284231247
Mean daily daylight hours9h 57m10h 50m11h 58m13h 8m14h 7m14h 36m14h 21m13h 29m12h 22m11h 12m10h 12m9h 41m

Solar UV radiation in Chalus, Iran

Chalus experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Chalus UV Index data.

Average daily maximum UV levels by month for Chalus. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)347811101098643