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Monthly climate in Jomsom, Nepal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Jomsom features a ice cap climate ET). Temperatures typically range between -11 °C (12 °F) and 9 °C (49 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 17 °C (63 °F). The average annual precipitation amounts to about 1628 mm (64.1 inches) and receives 213 rainy days on the 1 mm (0.04 inches) threshold annually. Jomsom enjoys an average of 3672 hours of sunshine throughout the year, and daylight varies from 10 hours 19 minutes to 13 hours 56 minutes per day.

Monthly average temperatures in Jomsom, Nepal

The warmest months in Jomsom are July, August and September, with daily mean temperatures ranging from 7 to 9 °C (45 - 49 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -11 to -9 °C (12 - 16 °F) throughout the day. On average each year, Jomsom experiences 0 days above 25 °C (77.0 °F) and 220 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Jomsom. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(49°F)		7°C
(45°F)		9°C
(48°F)		10°C
(50°F)		13°C
(56°F)		15°C
(60°F)		17°C
(62°F)		17°C
(63°F)		15°C
(59°F)		13°C
(55°F)		10°C
(50°F)		7°C
(45°F)
Mean maximum1°C
(34°F)		3°C
(38°F)		5°C
(41°F)		7°C
(45°F)		11°C
(53°F)		14°C
(57°F)		16°C
(60°F)		16°C
(61°F)		14°C
(58°F)		12°C
(54°F)		8°C
(47°F)		5°C
(41°F)
Average high-5°C
(23°F)		-3°C
(26°F)		-1°C
(31°F)		4°C
(39°F)		7°C
(45°F)		11°C
(52°F)		13°C
(55°F)		13°C
(55°F)		11°C
(52°F)		8°C
(46°F)		4°C
(39°F)		-2°C
(28°F)
Daily mean-11°C
(12°F)		-10°C
(15°F)		-7°C
(20°F)		-2°C
(28°F)		2°C
(36°F)		7°C
(45°F)		9°C
(49°F)		9°C
(49°F)		7°C
(45°F)		2°C
(37°F)		-3°C
(27°F)		-9°C
(16°F)
Average low-17°C
(2°F)		-16°C
(4°F)		-12°C
(10°F)		-8°C
(18°F)		-4°C
(26°F)		3°C
(38°F)		6°C
(44°F)		6°C
(44°F)		3°C
(39°F)		-3°C
(28°F)		-8°C
(17°F)		-15°C
(5°F)
Mean minimum-23°C
(-10°F)		-22°C
(-8°F)		-18°C
(-0°F)		-15°C
(6°F)		-11°C
(12°F)		-2°C
(28°F)		4°C
(40°F)		4°C
(39°F)		-2°C
(28°F)		-10°C
(14°F)		-15°C
(6°F)		-22°C
(-7°F)
Minimum-25°C
(-13°F)		-25°C
(-12°F)		-20°C
(-3°F)		-21°C
(-5°F)		-18°C
(1°F)		-7°C
(21°F)		4°C
(39°F)		3°C
(37°F)		-8°C
(19°F)		-12°C
(10°F)		-21°C
(-5°F)		-24°C
(-11°F)

Compare climate in Jomsom with other places

Compare temperature, precipitation, sunshine, UV index in Jomsom, Nepal with other places around the world.

Monthly average precipitation in Jomsom, Nepal

Jomsom usually has the most precipitation in July, August and September, with an average of 29 rainy days and 309 mm (12.2 inches) of precipitation per month. The driest months in Jomsom are October, November and December. On average, 41 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Jomsom. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)64 (2.5)61 (2.4)64 (2.5)54 (2.1)113 (4.4)220 (8.7)370 (14.6)333 (13.1)223 (8.8)49 (1.9)27 (1.1)48 (1.9)
Average precipitation days (≥ 1 mm)89121625283130261477

Monthly sunshine hours in Jomsom, Nepal

The sunniest months in Jomsom are March, April and May, when the sun shines an average of 11 hours 38 minutes a day. Least sunny months in Jomsom: January, July and August receive an average of 8 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Jomsom. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours251296348357365309250253293332309304
Mean daily daylight hours10h 31m11h 9m11h 59m12h 51m13h 34m13h 56m13h 45m13h 7m12h 18m11h 26m10h 42m10h 19m

Solar UV radiation in Jomsom, Nepal

Jomsom experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 16 - 17, which corresponds to the Extreme category of sun exposure. January, November and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Jomsom UV Index data.

Average daily maximum UV levels by month for Jomsom. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)911151517161716151497