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Monthly climate in Behbahan, Iran

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Behbahan features a hot semi-arid climate (BSh). Temperatures typically range between 13 °C (56 °F) and 38 °C (100 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 50 °C (121 °F). The average annual precipitation amounts to about 482 mm (19.0 inches) and receives 39 rainy days on the 1 mm (0.04 inches) threshold annually. Behbahan enjoys an average of 3938 hours of sunshine throughout the year, and daylight varies from 10 hours 11 minutes to 14 hours 4 minutes per day.

Monthly average temperatures in Behbahan, Iran

The warmest months in Behbahan are June, July and August, with daily mean temperatures ranging from 37 to 38 °C (98 - 100 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 13 to 15 °C (56 - 59 °F) throughout the day. On average each year, Behbahan experiences 225 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 Behbahan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum26°C
(80°F)		29°C
(85°F)		38°C
(100°F)		40°C
(104°F)		46°C
(115°F)		49°C
(120°F)		50°C
(121°F)		49°C
(120°F)		47°C
(117°F)		43°C
(110°F)		36°C
(96°F)		29°C
(84°F)
Mean maximum24°C
(76°F)		26°C
(80°F)		32°C
(89°F)		37°C
(99°F)		45°C
(113°F)		47°C
(117°F)		49°C
(121°F)		48°C
(118°F)		46°C
(115°F)		41°C
(107°F)		33°C
(91°F)		27°C
(80°F)
Average high19°C
(67°F)		21°C
(70°F)		25°C
(78°F)		32°C
(90°F)		39°C
(102°F)		45°C
(113°F)		46°C
(114°F)		45°C
(113°F)		42°C
(108°F)		36°C
(97°F)		26°C
(79°F)		21°C
(70°F)
Daily mean13°C
(56°F)		15°C
(59°F)		19°C
(66°F)		25°C
(77°F)		31°C
(88°F)		37°C
(98°F)		38°C
(100°F)		37°C
(99°F)		34°C
(93°F)		28°C
(82°F)		20°C
(67°F)		15°C
(59°F)
Average low7°C
(45°F)		9°C
(48°F)		12°C
(54°F)		18°C
(64°F)		23°C
(73°F)		27°C
(81°F)		29°C
(85°F)		29°C
(84°F)		25°C
(77°F)		19°C
(67°F)		14°C
(57°F)		10°C
(50°F)
Mean minimum2°C
(35°F)		2°C
(37°F)		6°C
(43°F)		12°C
(53°F)		18°C
(64°F)		24°C
(75°F)		27°C
(81°F)		26°C
(79°F)		21°C
(70°F)		14°C
(57°F)		8°C
(47°F)		4°C
(39°F)
Minimum-2°C
(29°F)		-1°C
(30°F)		3°C
(38°F)		11°C
(52°F)		16°C
(62°F)		23°C
(74°F)		26°C
(79°F)		24°C
(76°F)		20°C
(68°F)		11°C
(53°F)		6°C
(42°F)		3°C
(37°F)

Compare climate in Behbahan with other places

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

Monthly average precipitation in Behbahan, Iran

Behbahan usually has the most precipitation in February, November and December, with an average of 6 rainy days and 97 mm (3.8 inches) of precipitation per month. The driest months in Behbahan are June, July and August. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Behbahan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)68 (2.7)86 (3.4)72 (2.8)27 (1.1)9 (0.4)0 (0.0)1 (0.0)2 (0.1)3 (0.1)7 (0.3)115 (4.5)91 (3.6)
Average precipitation days (≥ 1 mm)566420001267

Monthly sunshine hours in Behbahan, Iran

The sunniest months in Behbahan are May, June and July, when the sun shines an average of 12 hours 28 minutes a day. Least sunny months in Behbahan: January, February and November receive an average of 8 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Behbahan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours230282333339378383385371341322281286
Mean daily daylight hours10h 24m11h 5m11h 59m12h 55m13h 41m14h 4m13h 52m13h 12m12h 18m11h 23m10h 35m10h 11m

Solar UV radiation in Behbahan, Iran

Behbahan experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 11 - 12, 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 Behbahan UV Index data.

Average daily maximum UV levels by month for Behbahan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)579101212111110864