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Monthly climate in Ilam, Iran

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Ilam features a hot-summer Mediterranean climate (Csa).Temperatures typically range between 3 °C (38 °F) and 28 °C (83 °F) through the year, but rarely can drop to -16 °C (3 °F) or can rise to as high as 41 °C (105 °F).The average annual precipitation amounts to about 584 mm (23.0 inches) and receives 69 rainy days on the 1 mm (0.04 inches) threshold annually.Ilam enjoys an average of 3922 hours of sunshine throughout the year, and daylight varies from 9 hours 56 minutes to 14 hours 20 minutes per day.

Monthly average temperatures in Ilam, Iran §

The warmest months in Ilam are June, July and August, with daily mean temperatures ranging from 25 to 28 °C (77 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 6 °C (38 - 43 °F) throughout the day. On average each year, Ilam experiences 135 days above 25 °C (77.0 °F) and 54 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ilam, Iran.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 17°C
(62°F)		 18°C
(66°F)		 25°C
(77°F)		 29°C
(85°F)		 33°C
(92°F)		 39°C
(102°F)		 41°C
(105°F)		 39°C
(102°F)		 37°C
(99°F)		 33°C
(91°F)		 24°C
(76°F)		 18°C
(65°F)
Mean maximum 14°C
(57°F)		 16°C
(61°F)		 20°C
(68°F)		 25°C
(77°F)		 32°C
(89°F)		 36°C
(98°F)		 39°C
(103°F)		 38°C
(101°F)		 36°C
(97°F)		 30°C
(87°F)		 21°C
(71°F)		 16°C
(60°F)
Average high 9°C
(48°F)		 10°C
(51°F)		 14°C
(58°F)		 20°C
(67°F)		 26°C
(79°F)		 33°C
(91°F)		 36°C
(97°F)		 36°C
(96°F)		 32°C
(90°F)		 24°C
(76°F)		 15°C
(60°F)		 11°C
(52°F)
Daily mean 3°C
(38°F)		 5°C
(41°F)		 9°C
(48°F)		 14°C
(57°F)		 19°C
(67°F)		 25°C
(77°F)		 28°C
(83°F)		 27°C
(82°F)		 24°C
(75°F)		 17°C
(63°F)		 10°C
(49°F)		 6°C
(43°F)
Average low -2°C
(29°F)		 0°C
(32°F)		 3°C
(38°F)		 7°C
(46°F)		 12°C
(54°F)		 16°C
(60°F)		 19°C
(67°F)		 18°C
(65°F)		 15°C
(59°F)		 10°C
(50°F)		 5°C
(40°F)		 1°C
(34°F)
Mean minimum -9°C
(16°F)		 -7°C
(20°F)		 -2°C
(28°F)		 2°C
(35°F)		 7°C
(46°F)		 12°C
(54°F)		 16°C
(61°F)		 15°C
(60°F)		 10°C
(51°F)		 4°C
(40°F)		 -1°C
(31°F)		 -4°C
(26°F)
Minimum -16°C
(3°F)		 -10°C
(14°F)		 -5°C
(23°F)		 -0°C
(32°F)		 7°C
(44°F)		 10°C
(50°F)		 14°C
(58°F)		 13°C
(56°F)		 10°C
(50°F)		 3°C
(38°F)		 -3°C
(28°F)		 -6°C
(21°F)

Compare climate in Ilam with other places

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

Monthly average precipitation in Ilam, Iran §

Ilam usually has the most precipitation in February, March and April, with an average of 10 rainy days and 102 mm (4.0 inches) of precipitation per month.The driest months in Ilam 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 Ilam, Iran.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 69 (2.7) 106 (4.2) 107 (4.2) 93 (3.7) 31 (1.2) 1 (0.0) 0 (0.0) 1 (0.0) 1 (0.0) 31 (1.2) 66 (2.6) 79 (3.1)
Average precipitation days (≥ 1 mm) 8 10 11 11 8 0 0 0 0 5 8 8

Monthly sunshine hours in Ilam, Iran §

The sunniest months in Ilam are May, June and July, when the sun shines an average of 12 hours 46 minutes a day.Least sunny months in Ilam: January, February and December receive an average of 8 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ilam, Iran.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 226 268 327 337 384 393 397 376 342 318 278 271
Mean daily daylight hours 10h 10m 10h 57m 11h 59m 13h 1m 13h 54m 14h 20m 14h 7m 13h 20m 12h 20m 11h 18m 10h 23m 9h 56m

Solar UV radiation in Ilam, Iran §

Ilam experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 13, 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 Ilam UV Index data.

Average daily maximum UV levels by month for Ilam, Iran.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 5 6 9 10 13 12 11 10 9 7 5 4