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Monthly climate in Semirom, Iran

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Semirom features a hot-summer Mediterranean climate (Csa). Temperatures typically range between -2 °C (28 °F) and 24 °C (76 °F) through the year, but rarely can drop to -21 °C (-6 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 306 mm (12.0 inches) and receives 42 rainy days on the 1 mm (0.04 inches) threshold annually. Semirom enjoys an average of 4012 hours of sunshine throughout the year, and daylight varies from 10 hours 7 minutes to 14 hours 8 minutes per day.

Monthly average temperatures in Semirom, Iran

The warmest months in Semirom are June, July and August, with daily mean temperatures ranging from 22 to 24 °C (73 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 1 °C (28 - 34 °F) throughout the day. On average each year, Semirom experiences 106 days above 25 °C (77.0 °F) and 121 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Semirom. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(60°F)		16°C
(60°F)		22°C
(72°F)		24°C
(75°F)		29°C
(85°F)		35°C
(94°F)		36°C
(97°F)		36°C
(96°F)		32°C
(90°F)		27°C
(80°F)		21°C
(70°F)		15°C
(59°F)
Mean maximum11°C
(52°F)		11°C
(53°F)		17°C
(63°F)		21°C
(70°F)		28°C
(82°F)		32°C
(90°F)		34°C
(94°F)		34°C
(93°F)		31°C
(88°F)		26°C
(79°F)		19°C
(66°F)		14°C
(57°F)
Average high4°C
(40°F)		5°C
(41°F)		11°C
(52°F)		17°C
(62°F)		22°C
(72°F)		30°C
(86°F)		32°C
(89°F)		31°C
(87°F)		28°C
(83°F)		21°C
(70°F)		12°C
(54°F)		8°C
(47°F)
Daily mean-2°C
(28°F)		-1°C
(30°F)		5°C
(41°F)		10°C
(51°F)		15°C
(60°F)		22°C
(73°F)		24°C
(76°F)		23°C
(74°F)		20°C
(68°F)		13°C
(55°F)		5°C
(42°F)		1°C
(34°F)
Average low-8°C
(18°F)		-8°C
(18°F)		-1°C
(30°F)		4°C
(40°F)		9°C
(48°F)		14°C
(58°F)		16°C
(61°F)		14°C
(58°F)		11°C
(51°F)		5°C
(41°F)		-1°C
(31°F)		-5°C
(24°F)
Mean minimum-16°C
(3°F)		-16°C
(3°F)		-10°C
(15°F)		-2°C
(28°F)		3°C
(38°F)		9°C
(49°F)		12°C
(55°F)		10°C
(50°F)		6°C
(44°F)		-0°C
(32°F)		-6°C
(21°F)		-11°C
(13°F)
Minimum-21°C
(-6°F)		-19°C
(-3°F)		-15°C
(6°F)		-5°C
(24°F)		1°C
(34°F)		7°C
(45°F)		11°C
(52°F)		7°C
(46°F)		5°C
(41°F)		-4°C
(25°F)		-8°C
(17°F)		-14°C
(6°F)

Compare climate in Semirom with other places

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

Monthly average precipitation in Semirom, Iran

Semirom usually has the most precipitation in February, March and November, with an average of 6 rainy days and 54 mm (2.1 inches) of precipitation per month. The driest months in Semirom are July, August and September. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Semirom. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)48 (1.9)59 (2.3)52 (2.0)39 (1.5)18 (0.7)1 (0.1)1 (0.0)0 (0.0)0 (0.0)4 (0.2)52 (2.0)32 (1.2)
Average precipitation days (≥ 1 mm)567850000164

Monthly sunshine hours in Semirom, Iran

The sunniest months in Semirom are May, June and July, when the sun shines an average of 12 hours 41 minutes a day. Least sunny months in Semirom: January, February and November receive an average of 9 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Semirom. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours239288341345382393391376347331285290
Mean daily daylight hours10h 20m11h 3m11h 59m12h 56m13h 44m14h 8m13h 56m13h 14m12h 19m11h 22m10h 32m10h 7m

Solar UV radiation in Semirom, Iran

Semirom experiences the highest level of ultraviolet (UV) radiation in May, June and July, 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 Moderate / High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Semirom UV Index data.

Average daily maximum UV levels by month for Semirom. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)89111214141312111075