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Monthly climate in Janakpur, Nepal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Janakpur features a humid subtropical climate (Cwa). Temperatures typically range between 15 °C (60 °F) and 30 °C (87 °F) through the year, but rarely can drop to 5 °C (41 °F) or can rise to as high as 41 °C (107 °F). The average annual precipitation amounts to about 1421 mm (56.0 inches) and receives 134 rainy days on the 1 mm (0.04 inches) threshold annually. Janakpur enjoys an average of 3497 hours of sunshine throughout the year, and daylight varies from 10 hours 28 minutes to 13 hours 46 minutes per day.

Monthly average temperatures in Janakpur, Nepal

The warmest months in Janakpur are May, June and August, with daily mean temperatures ranging from 29 to 30 °C (85 - 87 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 15 to 19 °C (60 - 66 °F) throughout the day. On average each year, Janakpur experiences 279 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 Janakpur. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(84°F)		32°C
(90°F)		38°C
(100°F)		41°C
(106°F)		41°C
(107°F)		40°C
(104°F)		38°C
(102°F)		37°C
(99°F)		36°C
(98°F)		36°C
(98°F)		35°C
(95°F)		30°C
(87°F)
Mean maximum27°C
(80°F)		30°C
(87°F)		37°C
(98°F)		40°C
(104°F)		40°C
(104°F)		38°C
(101°F)		36°C
(98°F)		36°C
(98°F)		36°C
(97°F)		35°C
(95°F)		33°C
(91°F)		29°C
(84°F)
Average high22°C
(73°F)		26°C
(79°F)		32°C
(91°F)		36°C
(96°F)		35°C
(96°F)		35°C
(95°F)		32°C
(90°F)		33°C
(91°F)		32°C
(90°F)		32°C
(90°F)		29°C
(85°F)		25°C
(77°F)
Daily mean15°C
(60°F)		19°C
(66°F)		25°C
(77°F)		29°C
(84°F)		30°C
(86°F)		30°C
(87°F)		29°C
(85°F)		29°C
(85°F)		29°C
(84°F)		27°C
(80°F)		22°C
(72°F)		17°C
(63°F)
Average low11°C
(51°F)		13°C
(56°F)		19°C
(66°F)		23°C
(74°F)		25°C
(78°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		26°C
(79°F)		23°C
(73°F)		16°C
(61°F)		12°C
(54°F)
Mean minimum7°C
(45°F)		9°C
(49°F)		13°C
(56°F)		20°C
(68°F)		22°C
(73°F)		25°C
(78°F)		24°C
(76°F)		26°C
(78°F)		24°C
(76°F)		18°C
(64°F)		13°C
(55°F)		8°C
(46°F)
Minimum5°C
(41°F)		7°C
(44°F)		10°C
(50°F)		17°C
(64°F)		21°C
(70°F)		24°C
(75°F)		24°C
(75°F)		25°C
(78°F)		22°C
(73°F)		16°C
(61°F)		11°C
(53°F)		5°C
(41°F)

Compare climate in Janakpur with other places

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

Monthly average precipitation in Janakpur, Nepal

Janakpur usually has the most precipitation in July, August and September, with an average of 26 rainy days and 327 mm (12.9 inches) of precipitation per month. The driest months in Janakpur are January, November and December. On average, 6 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Janakpur. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)9 (0.4)14 (0.6)14 (0.6)34 (1.3)110 (4.3)173 (6.8)458 (18.0)287 (11.3)236 (9.3)75 (2.9)0 (0.0)10 (0.4)
Average precipitation days (≥ 1 mm)12281421282823700

Monthly sunshine hours in Janakpur, Nepal

The sunniest months in Janakpur are March, April and May, when the sun shines an average of 11 hours 7 minutes a day. Least sunny months in Janakpur: January, July and August receive an average of 7 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Janakpur. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours238276333339350318236261270306285279
Mean daily daylight hours10h 39m11h 14m12h 0m12h 47m13h 27m13h 46m13h 36m13h 2m12h 16m11h 29m10h 49m10h 28m

Solar UV radiation in Janakpur, Nepal

Janakpur experiences the highest level of ultraviolet (UV) radiation in July, August and September, when the maximum UV index can reach values of 11 - 13, which corresponds to the Extreme category of sun exposure. January, February 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 Janakpur UV Index data.

Average daily maximum UV levels by month for Janakpur. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)568101011131211975