Butwāl, Nepal climate

Cwa Monsoon-influenced humid subtropical

Butwāl has a mildly seasonal warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is June with an average daily high near 85°F, while the coldest is January averaging around 36°F at night. Precipitation totals about 55 inches a year and is strongly seasonal — July alone averages 14.4 inches while December barely receives 0.00 inches.

☀️ Summers

Warm

Highs near 85°F in June.

About 7 days a year above 90 °F

❄️ Winters

Chilly

Lows near 36°F in January.

About 3 freezing nights a year

🌧️ Rain

Wet

About 55 in of rain a year.

Wettest in July

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+1.1 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Butwāl climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	66	71	78	83	84	85	83	84	83	80	75	69
Avg temp (°F)	51	56	62	68	72	76	75	75	74	68	60	53
Avg low (°F)	36	41	47	53	60	66	68	68	65	56	46	38
Precipitation (in)	0.6	0.8	2.0	3.0	3.3	8.0	14.4	10.8	8.6	3.0	0.3	0.0

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	66	71	78	83	84	85
Avg temp (°F)	51	56	62	68	72	76
Avg low (°F)	36	41	47	53	60	66
Precipitation (in)	0.6	0.8	2.0	3.0	3.3	8.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	83	84	83	80	75	69
Avg temp (°F)	75	75	74	68	60	53
Avg low (°F)	68	68	65	56	46	38
Precipitation (in)	14.4	10.8	8.6	3.0	0.3	0.0

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	1.0	1	3	4	5	6	9	9	6	2	0.3	0.2
Days with high ≥ 90°F (days)	—	—	—	2	2	2	0.1	0.4	0.1	—	—	—
Days with low ≤ 32°F (days)	2	0.3	—	—	—	—	—	—	—	—	—	0.3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	1.0	1	3	4	5	6
Days with high ≥ 90°F (days)	—	—	—	2	2	2
Days with low ≤ 32°F (days)	2	0.3	—	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	9	6	2	0.3	0.2
Days with high ≥ 90°F (days)	0.1	0.4	0.1	—	—	—
Days with low ≤ 32°F (days)	—	—	—	—	—	0.3

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	39	43	45	51	58	72	86	84	71	44	33	34
Clear days (≤ 30% cloud)	14	11	10	5	4	1	0.1	0.1	2	9	15	16
Partly cloudy days (30–70%)	14	14	17	19	18	10	5	5	12	17	13	14
Cloudy days (≥ 70%)	4	4	5	6	9	18	26	26	17	5	2	2
Relative humidity (%)	43	39	33	32	45	64	82	86	84	69	55	46
Wind speed (mph)	3.0	3.6	4.1	4.4	4.1	3.9	3.7	3.2	2.8	2.7	2.6	2.6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	39	43	45	51	58	72
Clear days (≤ 30% cloud)	14	11	10	5	4	1
Partly cloudy days (30–70%)	14	14	17	19	18	10
Cloudy days (≥ 70%)	4	4	5	6	9	18
Relative humidity (%)	43	39	33	32	45	64
Wind speed (mph)	3.0	3.6	4.1	4.4	4.1	3.9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	86	84	71	44	33	34
Clear days (≤ 30% cloud)	0.1	0.1	2	9	15	16
Partly cloudy days (30–70%)	5	5	12	17	13	14
Cloudy days (≥ 70%)	26	26	17	5	2	2
Relative humidity (%)	82	86	84	69	55	46
Wind speed (mph)	3.7	3.2	2.8	2.7	2.6	2.6

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 16 years of daily observations at Kathmandu Airport, a weather station, about 189 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →