nomadseason

Monthly climate in Sergelen, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sergelen features a cold semi-arid climate (BSk). Temperatures typically range between -19 °C (-2 °F) and 22 °C (72 °F) through the year, but rarely can drop to -36 °C (-32 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 212 mm (8.3 inches) and receives 31 rainy days on the 1 mm (0.04 inches) threshold annually. Sergelen enjoys an average of 3650 hours of sunshine throughout the year, and daylight varies from 8 hours 40 minutes to 15 hours 42 minutes per day.

Monthly average temperatures in Sergelen, Mongolia

The warmest months in Sergelen are June, July and August, with daily mean temperatures ranging from 18 to 22 °C (65 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -19 to -15 °C (-2 - 5 °F) throughout the day. On average each year, Sergelen experiences 57 days above 25 °C (77.0 °F) and 185 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sergelen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum2°C
(36°F)		6°C
(43°F)		20°C
(68°F)		30°C
(86°F)		36°C
(97°F)		36°C
(97°F)		38°C
(100°F)		34°C
(93°F)		32°C
(89°F)		29°C
(85°F)		12°C
(54°F)		3°C
(38°F)
Mean maximum-6°C
(22°F)		2°C
(35°F)		16°C
(60°F)		25°C
(77°F)		32°C
(90°F)		32°C
(90°F)		35°C
(95°F)		31°C
(89°F)		27°C
(81°F)		21°C
(70°F)		11°C
(52°F)		-2°C
(29°F)
Average high-13°C
(9°F)		-8°C
(18°F)		4°C
(39°F)		13°C
(55°F)		20°C
(68°F)		26°C
(79°F)		28°C
(83°F)		24°C
(75°F)		20°C
(69°F)		10°C
(50°F)		-2°C
(29°F)		-11°C
(12°F)
Daily mean-19°C
(-2°F)		-15°C
(5°F)		-3°C
(27°F)		6°C
(43°F)		13°C
(56°F)		20°C
(68°F)		22°C
(72°F)		18°C
(65°F)		13°C
(57°F)		3°C
(38°F)		-8°C
(18°F)		-17°C
(2°F)
Average low-24°C
(-11°F)		-21°C
(-5°F)		-9°C
(16°F)		-1°C
(30°F)		6°C
(42°F)		12°C
(55°F)		17°C
(62°F)		13°C
(56°F)		7°C
(45°F)		-3°C
(28°F)		-13°C
(10°F)		-21°C
(-5°F)
Mean minimum-30°C
(-22°F)		-30°C
(-21°F)		-18°C
(-0°F)		-9°C
(17°F)		-2°C
(28°F)		5°C
(42°F)		10°C
(51°F)		7°C
(45°F)		-1°C
(30°F)		-9°C
(15°F)		-23°C
(-9°F)		-30°C
(-21°F)
Minimum-36°C
(-32°F)		-34°C
(-29°F)		-23°C
(-9°F)		-12°C
(11°F)		-4°C
(25°F)		2°C
(36°F)		9°C
(48°F)		2°C
(36°F)		-5°C
(23°F)		-10°C
(13°F)		-27°C
(-17°F)		-32°C
(-26°F)

Compare climate in Sergelen with other places

Compare temperature, precipitation, sunshine, UV index in Sergelen, Mongolia with other places around the world.

Monthly average precipitation in Sergelen, Mongolia

Sergelen usually has the most precipitation in June, July and August, with an average of 6 rainy days and 50 mm (1.9 inches) of precipitation per month. The driest months in Sergelen are January, February and March. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sergelen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)2 (0.1)2 (0.1)3 (0.1)8 (0.3)16 (0.6)24 (0.9)64 (2.5)61 (2.4)17 (0.7)7 (0.3)7 (0.3)3 (0.1)
Average precipitation days (≥ 1 mm)000234883120

Monthly sunshine hours in Sergelen, Mongolia

The sunniest months in Sergelen are May, June and July, when the sun shines an average of 11 hours 44 minutes a day. Least sunny months in Sergelen: January, November and December receive an average of 7 hours 51 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sergelen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours209268317325358357364344306284257255
Mean daily daylight hours9h 3m10h 19m11h 55m13h 33m14h 58m15h 42m15h 19m14h 5m12h 30m10h 52m9h 25m8h 40m

Solar UV radiation in Sergelen, Mongolia

Sergelen experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Sergelen UV Index data.

Average daily maximum UV levels by month for Sergelen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)23579101097522