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Monthly climate in Sirjan, Iran

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sirjan features a cold semi-arid climate (BSk). Temperatures typically range between 5 °C (42 °F) and 29 °C (84 °F) through the year, but rarely can drop to -9 °C (17 °F) or can rise to as high as 39 °C (103 °F). The average annual precipitation amounts to about 190 mm (7.5 inches) and receives 26 rainy days on the 1 mm (0.04 inches) threshold annually. Sirjan enjoys an average of 4038 hours of sunshine throughout the year, and daylight varies from 10 hours 16 minutes to 13 hours 59 minutes per day.

Monthly average temperatures in Sirjan, Iran

The warmest months in Sirjan are June, July and August, with daily mean temperatures ranging from 28 to 29 °C (82 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 8 °C (42 - 46 °F) throughout the day. On average each year, Sirjan experiences 154 days above 25 °C (77.0 °F) and 39 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sirjan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(69°F)		22°C
(72°F)		28°C
(82°F)		30°C
(85°F)		36°C
(98°F)		38°C
(101°F)		39°C
(103°F)		38°C
(101°F)		35°C
(95°F)		31°C
(88°F)		24°C
(76°F)		21°C
(71°F)
Mean maximum18°C
(64°F)		20°C
(67°F)		23°C
(74°F)		27°C
(82°F)		33°C
(92°F)		36°C
(97°F)		37°C
(100°F)		36°C
(98°F)		33°C
(92°F)		29°C
(85°F)		23°C
(73°F)		19°C
(66°F)
Average high12°C
(54°F)		14°C
(58°F)		18°C
(65°F)		23°C
(74°F)		28°C
(82°F)		35°C
(95°F)		35°C
(95°F)		34°C
(93°F)		31°C
(88°F)		25°C
(78°F)		17°C
(64°F)		14°C
(58°F)
Daily mean5°C
(42°F)		8°C
(46°F)		12°C
(54°F)		17°C
(63°F)		22°C
(71°F)		28°C
(83°F)		29°C
(84°F)		28°C
(82°F)		24°C
(75°F)		18°C
(65°F)		11°C
(52°F)		7°C
(45°F)
Average low-0°C
(32°F)		2°C
(35°F)		6°C
(43°F)		11°C
(52°F)		15°C
(60°F)		21°C
(69°F)		22°C
(72°F)		21°C
(70°F)		17°C
(62°F)		11°C
(52°F)		5°C
(41°F)		1°C
(34°F)
Mean minimum-6°C
(22°F)		-5°C
(24°F)		1°C
(33°F)		5°C
(42°F)		11°C
(52°F)		17°C
(62°F)		19°C
(66°F)		17°C
(62°F)		14°C
(57°F)		7°C
(45°F)		-0°C
(32°F)		-3°C
(26°F)
Minimum-9°C
(17°F)		-9°C
(17°F)		-3°C
(26°F)		3°C
(37°F)		9°C
(48°F)		15°C
(59°F)		17°C
(64°F)		15°C
(59°F)		12°C
(53°F)		3°C
(38°F)		-4°C
(26°F)		-5°C
(23°F)

Compare climate in Sirjan with other places

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

Monthly average precipitation in Sirjan, Iran

Sirjan usually has the most precipitation in February, March and April, with an average of 5 rainy days and 39 mm (1.5 inches) of precipitation per month. The driest months in Sirjan are June, August and September. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sirjan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)21 (0.8)51 (2.0)41 (1.6)26 (1.0)12 (0.5)0 (0.0)3 (0.1)1 (0.0)0 (0.0)6 (0.2)14 (0.5)16 (0.6)
Average precipitation days (≥ 1 mm)356430000032

Monthly sunshine hours in Sirjan, Iran

The sunniest months in Sirjan are May, June and July, when the sun shines an average of 12 hours 37 minutes a day. Least sunny months in Sirjan: January, February and November receive an average of 9 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sirjan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours245286338346382387391374348335298301
Mean daily daylight hours10h 28m11h 8m11h 59m12h 52m13h 37m13h 59m13h 47m13h 8m12h 18m11h 25m10h 39m10h 16m

Solar UV radiation in Sirjan, Iran

Sirjan 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 exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Sirjan UV Index data.

Average daily maximum UV levels by month for Sirjan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)68121214131312121075