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Monthly climate in Bostanabad, Iran

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bostanabad features a humid continental climate (Dsa). Temperatures typically range between -6 °C (21 °F) and 21 °C (71 °F) through the year, but rarely can drop to -22 °C (-7 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 775 mm (30.5 inches) and receives 114 rainy days on the 1 mm (0.04 inches) threshold annually. Bostanabad enjoys an average of 3986 hours of sunshine throughout the year, and daylight varies from 9 hours 34 minutes to 14 hours 43 minutes per day.

Monthly average temperatures in Bostanabad, Iran

The warmest months in Bostanabad are June, July and August, with daily mean temperatures ranging from 18 to 21 °C (65 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -2 °C (21 - 28 °F) throughout the day. On average each year, Bostanabad experiences 77 days above 25 °C (77.0 °F) and 135 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bostanabad. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(53°F)		11°C
(52°F)		19°C
(67°F)		23°C
(74°F)		28°C
(82°F)		34°C
(94°F)		34°C
(94°F)		34°C
(94°F)		33°C
(91°F)		24°C
(76°F)		20°C
(68°F)		15°C
(59°F)
Mean maximum5°C
(42°F)		7°C
(45°F)		12°C
(54°F)		19°C
(67°F)		25°C
(78°F)		31°C
(88°F)		34°C
(93°F)		33°C
(91°F)		30°C
(87°F)		23°C
(73°F)		15°C
(60°F)		9°C
(49°F)
Average high-1°C
(30°F)		1°C
(34°F)		6°C
(43°F)		13°C
(55°F)		19°C
(67°F)		26°C
(79°F)		29°C
(85°F)		28°C
(83°F)		25°C
(78°F)		17°C
(63°F)		8°C
(47°F)		3°C
(37°F)
Daily mean-6°C
(21°F)		-4°C
(25°F)		1°C
(35°F)		7°C
(45°F)		13°C
(55°F)		18°C
(65°F)		21°C
(71°F)		20°C
(69°F)		17°C
(63°F)		10°C
(50°F)		3°C
(37°F)		-2°C
(28°F)
Average low-10°C
(14°F)		-8°C
(17°F)		-3°C
(27°F)		1°C
(35°F)		7°C
(44°F)		11°C
(52°F)		14°C
(58°F)		13°C
(56°F)		10°C
(50°F)		4°C
(40°F)		-1°C
(30°F)		-6°C
(21°F)
Mean minimum-19°C
(-1°F)		-16°C
(3°F)		-9°C
(15°F)		-5°C
(23°F)		3°C
(37°F)		7°C
(45°F)		10°C
(51°F)		10°C
(50°F)		5°C
(41°F)		-2°C
(29°F)		-9°C
(16°F)		-13°C
(9°F)
Minimum-22°C
(-7°F)		-21°C
(-6°F)		-13°C
(9°F)		-8°C
(18°F)		1°C
(33°F)		5°C
(42°F)		8°C
(46°F)		5°C
(41°F)		3°C
(39°F)		-5°C
(24°F)		-12°C
(10°F)		-18°C
(-0°F)

Compare climate in Bostanabad with other places

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

Monthly average precipitation in Bostanabad, Iran

Bostanabad usually has the most precipitation in March, April and May, with an average of 15 rainy days and 114 mm (4.5 inches) of precipitation per month. The driest months in Bostanabad are June, August and September. On average, 31 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bostanabad. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)43 (1.7)71 (2.8)93 (3.6)134 (5.3)115 (4.5)39 (1.5)44 (1.7)27 (1.1)26 (1.0)74 (2.9)61 (2.4)48 (1.9)
Average precipitation days (≥ 1 mm)7913171787441099

Monthly sunshine hours in Bostanabad, Iran

The sunniest months in Bostanabad are May, June and July, when the sun shines an average of 13 hours 16 minutes a day. Least sunny months in Bostanabad: January, November and December receive an average of 8 hours 10 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bostanabad. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours223268323350398408413396352322267260
Mean daily daylight hours9h 51m10h 47m11h 58m13h 11m14h 12m14h 43m14h 27m13h 33m12h 23m11h 10m10h 7m9h 34m

Solar UV radiation in Bostanabad, Iran

Bostanabad 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 exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Bostanabad UV Index data.

Average daily maximum UV levels by month for Bostanabad. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)469101313121110743