Janakpur climate

Name: Janakpur
Address: NP

Janakpur is warmest in April, with average highs of 35 °C, and coldest in January, when nights average 10 °C. July is the wettest month (411 mm) and November the driest (2.6 mm). Figures are 1991–2020 climate normals.

Across a full year Janakpur averages 1,372 mm of rain and 295 days above 25 °C.

Nepal · population 195,438 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month April 35 °C
Coldest month January 10 °C
Driest month November 3 mm
Wettest month July 411 mm
Least cloud November 15 % cloud
Hottest on record May 43 °C
Coldest on record December 5.1 °C

What to expectJanakpur through the year

Janakpur has a clear annual cycle: average daily highs run from 22 °C in January to 35 °C in April, a swing of 14 °C in mean temperature across the year.

Counted across a normal year, 295 days a year reach 25 °C, 187 of them reach 30 °C. The warmest reading in the 1991–2020 record is 43 °C, in May.

Rain is strongly seasonal. July averages 411 mm against 3 mm in November — 160 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	21.7 °C	12 mm	25 %
February	25.5 °C	12 mm	23 %
March	31.4 °C	11 mm	23 %
April	35.3 °C	29 mm	26 %
May	35.1 °C	91 mm	33 %
June	33.2 °C	235 mm	64 %
July	31.0 °C	411 mm	89 %
August	31.0 °C	285 mm	87 %
September	30.5 °C	227 mm	66 %
October	29.7 °C	52 mm	26 %
November	27.3 °C	3 mm	15 %
December	23.5 °C	5 mm	18 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	21.7 °C	10.1 °C	15.7 °C	27.1 °C	5.3 °C	1	0
February	25.5 °C	12.8 °C	19.1 °C	35.3 °C	6.9 °C	16	1
March	31.4 °C	17.5 °C	24.6 °C	39.1 °C	9.4 °C	30	22
April	35.3 °C	22.2 °C	28.9 °C	41.9 °C	15.1 °C	30	28
May	35.1 °C	24.6 °C	29.8 °C	43.4 °C	19.5 °C	31	29
June	33.2 °C	25.6 °C	29.2 °C	43.4 °C	21.9 °C	30	26
July	31.0 °C	25.5 °C	27.9 °C	36.9 °C	23.4 °C	31	23
August	31.0 °C	25.4 °C	27.9 °C	36.7 °C	22.8 °C	31	24
September	30.5 °C	24.4 °C	27.1 °C	35.4 °C	20.4 °C	30	20
October	29.7 °C	20.7 °C	25.1 °C	34.1 °C	14.6 °C	31	13
November	27.3 °C	15.7 °C	21.4 °C	32.1 °C	10.4 °C	27	2
December	23.5 °C	11.7 °C	17.4 °C	28.4 °C	5.1 °C	7	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	12 mm	2	11 h/day	25 %	72 %	10 km/h
February	12 mm	2	11 h/day	23 %	62 %	13 km/h
March	11 mm	2	12 h/day	23 %	47 %	16 km/h
April	29 mm	5	13 h/day	26 %	45 %	18 km/h
May	91 mm	12	13 h/day	33 %	60 %	17 km/h
June	235 mm	21	14 h/day	64 %	75 %	16 km/h
July	411 mm	27	14 h/day	89 %	84 %	16 km/h
August	285 mm	26	13 h/day	87 %	85 %	15 km/h
September	227 mm	21	12 h/day	66 %	85 %	13 km/h
October	52 mm	5	12 h/day	26 %	77 %	8.9 km/h
November	3 mm	0	11 h/day	15 %	67 %	8.9 km/h
December	5 mm	1	10 h/day	18 %	70 %	9.0 km/h

How Janakpur compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Janakpur	35 °C	10 °C	1,372 mm	295
Darbhanga · India	36 °C	10 °C	1,362 mm	302
Muzaffarpur · India	37 °C	10 °C	1,243 mm	301
Birgañj · Nepal	36 °C	9.8 °C	1,478 mm	294
Saharsa · India	36 °C	11 °C	1,369 mm	304
Hetauda · Nepal	32 °C	8.8 °C	2,016 mm	254
Kathmandu · Nepal	26 °C	6.6 °C	2,813 mm	120

Where Janakpur ranks

Ranking	Position	Value
The driest places in Asia in November	25thof 50	2.6 mm

Planning a trip? See the best time to visit Janakpur.

QuestionsCommon questions about Janakpur’s climate

When is the best time to visit Janakpur?

That depends on what you want, so the honest answer is a comparison rather than a single month. February, November, December sit closest to 20 °C on average, April is the warmest month and November the driest. The month-by-month table above has the full picture.

How hot does Janakpur get?

In April, the warmest month, daily highs average 35 °C. About 187 days a year pass 30 °C. The highest value in the 1991–2020 record is 43 °C.

How cold does it get in winter?

Nights average 10 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Janakpur?

July, averaging 411 mm over 27 days with rain. The driest month is November with 3 mm. The year as a whole averages 1,372 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Janakpur rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.