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Monthly climate in Isfahan, Iran

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Isfahan features a cold semi-arid climate (BSk).Temperatures typically range between 4 °C (40 °F) and 31 °C (88 °F) through the year, but rarely can drop to -8 °C (18 °F) or can rise to as high as 42 °C (107 °F).The average annual precipitation amounts to about 106 mm (4.2 inches) and receives 23 rainy days on the 1 mm (0.04 inches) threshold annually.Isfahan enjoys an average of 4022 hours of sunshine throughout the year, and daylight varies from 10 hours 0 minutes to 14 hours 15 minutes per day.

Monthly average temperatures in Isfahan, Iran §

The warmest months in Isfahan are June, July and August, with daily mean temperatures ranging from 29 to 31 °C (85 - 88 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 8 °C (40 - 46 °F) throughout the day. On average each year, Isfahan experiences 162 days above 25 °C (77.0 °F) and 58 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Isfahan, 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 18°C
(66°F)		 23°C
(74°F)		 31°C
(87°F)		 32°C
(90°F)		 37°C
(99°F)		 41°C
(107°F)		 42°C
(107°F)		 42°C
(107°F)		 37°C
(100°F)		 34°C
(93°F)		 27°C
(81°F)		 22°C
(72°F)
Mean maximum 17°C
(63°F)		 21°C
(70°F)		 25°C
(77°F)		 30°C
(85°F)		 36°C
(96°F)		 39°C
(103°F)		 41°C
(105°F)		 40°C
(104°F)		 36°C
(98°F)		 32°C
(90°F)		 23°C
(74°F)		 18°C
(65°F)
Average high 11°C
(53°F)		 15°C
(59°F)		 19°C
(67°F)		 24°C
(76°F)		 30°C
(85°F)		 37°C
(98°F)		 38°C
(101°F)		 37°C
(98°F)		 33°C
(92°F)		 26°C
(79°F)		 17°C
(62°F)		 13°C
(55°F)
Daily mean 4°C
(40°F)		 8°C
(46°F)		 12°C
(55°F)		 18°C
(64°F)		 23°C
(73°F)		 29°C
(85°F)		 31°C
(88°F)		 29°C
(85°F)		 25°C
(78°F)		 18°C
(65°F)		 10°C
(50°F)		 6°C
(43°F)
Average low -2°C
(29°F)		 1°C
(33°F)		 5°C
(41°F)		 10°C
(51°F)		 15°C
(59°F)		 20°C
(69°F)		 22°C
(72°F)		 20°C
(69°F)		 16°C
(61°F)		 10°C
(50°F)		 4°C
(39°F)		 -0°C
(32°F)
Mean minimum -6°C
(22°F)		 -5°C
(23°F)		 -1°C
(31°F)		 4°C
(39°F)		 10°C
(51°F)		 16°C
(61°F)		 19°C
(66°F)		 15°C
(60°F)		 12°C
(54°F)		 5°C
(41°F)		 -1°C
(30°F)		 -4°C
(24°F)
Minimum -8°C
(18°F)		 -8°C
(18°F)		 -5°C
(24°F)		 1°C
(35°F)		 8°C
(47°F)		 15°C
(58°F)		 16°C
(62°F)		 11°C
(53°F)		 11°C
(51°F)		 3°C
(37°F)		 -4°C
(24°F)		 -6°C
(21°F)

Compare climate in Isfahan with other places

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

Monthly average precipitation in Isfahan, Iran §

Isfahan usually has the most precipitation in March, April and November, with an average of 4 rainy days and 20 mm (0.8 inches) of precipitation per month.The driest months in Isfahan 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 Isfahan, 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) 8 (0.3) 11 (0.4) 18 (0.7) 17 (0.7) 13 (0.5) 1 (0.0) 0 (0.0) 0 (0.0) 0 (0.0) 3 (0.1) 25 (1.0) 11 (0.5)
Average precipitation days (≥ 1 mm) 2 3 4 5 3 0 0 0 0 0 4 2

Monthly sunshine hours in Isfahan, Iran §

The sunniest months in Isfahan are May, June and July, when the sun shines an average of 12 hours 42 minutes a day.Least sunny months in Isfahan: January, February and November receive an average of 9 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Isfahan, 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 240 290 343 346 381 392 394 379 347 327 284 294
Mean daily daylight hours 10h 14m 11h 0m 11h 59m 12h 59m 13h 50m 14h 15m 14h 2m 13h 18m 12h 20m 11h 19m 10h 27m 10h 0m

Solar UV radiation in Isfahan, Iran §

Isfahan experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 12 - 13, 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 6. For more detailed information, check out our hourly Isfahan UV Index data.

Average daily maximum UV levels by month for Isfahan, 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 7 10 10 13 13 12 11 10 9 6 4