Butwal climate
Butwal (Nepal) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 26 °C78 °F, and about 1,407 mm55 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Butwal climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2272 | 1049 | 1661 | 160.6 |
| Feb | 2780 | 1355 | 2068 | 220.8 |
| Mar | 3392 | 1864 | 2578 | 210.8 |
| Apr | 39101 | 2374 | 3188 | 281.1 |
| May | 40104 | 2679 | 3391 | 853.4 |
| Jun | 38101 | 2882 | 3391 | 2339.2 |
| Jul | 3392 | 2780 | 3086 | 41316 |
| Aug | 3391 | 2679 | 2985 | 30212 |
| Sep | 3189 | 2576 | 2882 | 2178.5 |
| Oct | 3086 | 2169 | 2578 | 632.5 |
| Nov | 2781 | 1560 | 2170 | 20.1 |
| Dec | 2374 | 1152 | 1763 | 50.2 |
| Year | 40104 | 1049 | 2678 | 1,40755 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 48% | 38% | 3.5 | 10:34 |
| Feb | 42% | 34% | 4.6 | 11:11 |
| Mar | 32% | 33% | 5.9 | 11:56 |
| Apr | 27% | 40% | 6.6 | 12:48 |
| May | 37% | 50% | 6.5 | 13:30 |
| Jun | 54% | 65% | 5.7 | 13:53 |
| Jul | 79% | 84% | 4.6 | 13:44 |
| Aug | 82% | 80% | 4.8 | 13:07 |
| Sep | 82% | 64% | 4.7 | 12:17 |
| Oct | 71% | 31% | 4.9 | 11:27 |
| Nov | 59% | 19% | 4.2 | 10:44 |
| Dec | 53% | 27% | 3.5 | 10:24 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Butwal is like
The warmest month is June, with an average high of 38 °C101 °F and a low of 28 °C82 °F. The coldest is January, when highs average 22 °C72 °F and lows 10 °C49 °F. There is a clear seasonal cycle, with 17 °C30.6 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,407 mm55 in of precipitation per year. The wettest three-month stretch is June–August, which brings 67% of the annual total. Months with less than 20 mm0.8 in on average: November–January. The wettest month is July (413 mm16 in), the driest is November (2 mm0.1 in).
Relative humidity ranges from 27% in April to 82% in September. The clearest skies (lowest average cloud amount, 19%) are typical of November. Average wind speed near the ground ranges from 4 km/h (2 mph) in October to 7 km/h (5 mph) in April. Daylight lasts from about 10.4 hours in December to 13.9 hours in June.
Best time to visit Butwal
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–February: average highs of 22 °C72 °F to 27 °C81 °F with 2 mm0.1 in to 22 mm0.8 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 33 °C92 °F, very wet (413 mm16 in) and humid (79% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Butwal
- Winter (December–February) — highs 2272 to 27 °C80 °F, lows 1049 to 13 °C55 °F, about 14 mm0.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 3392 to 40 °C104 °F, lows 1864 to 26 °C79 °F, about 45 mm1.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Summer (June–August) — highs 3391 to 38 °C101 °F, lows 2679 to 28 °C82 °F, about 316 mm12 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
- Autumn (September–November) — highs 2781 to 31 °C89 °F, lows 1560 to 25 °C76 °F, about 94 mm3.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
How Butwal compares
Compared with Pokhara, about 82 km to the northeast, Butwal is on average 4.4 °C8 °F warmer and receives 7% more precipitation (1,407 mm55 in vs 1,316 mm52 in). The difference is largest in April (8.7 °C15.7 °F warmer).
Of the 13 places in Nepal covered by World Climates, Butwal is the 4th warmest by annual mean temperature and the wettest by annual precipitation. See all of them on the Nepal climate page.
Places in other countries with the most similar temperature and rainfall pattern: Bettiah (India, Cwa), Bagaha (India, Cwa) and Mothihari (India, Cwa).
Nearby places
- Pokhara 82 km · 21 °C70 °F · 1,316 mm52 in
- Bagaha 91 km · 26 °C78 °F · 1,239 mm49 in
- Bharatpur 97 km · 25 °C78 °F · 1,331 mm52 in
- Gorakhpur 103 km · 26 °C78 °F · 1,200 mm47 in
- Kushinagar 114 km · 26 °C79 °F · 1,084 mm43 in
- Basti 124 km · 26 °C78 °F · 1,088 mm43 in
- Bettiah 143 km · 26 °C78 °F · 1,239 mm49 in
- Hetauda 158 km · 24 °C75 °F · 1,224 mm48 in
Frequently asked questions
What is the warmest month in Butwal?
June is the warmest month in Butwal, with an average high of 38 °C (101 °F) and an average low of 28 °C (82 °F).
What is the coldest month in Butwal?
January is the coldest month, with an average high of 22 °C (72 °F) and an average low of 10 °C (49 °F).
When does it rain the most in Butwal?
July is the wettest month with about 413 mm (16.3 in) of precipitation; November is the driest with about 2 mm (0.1 in).
What is the best time to visit Butwal?
Judging by long-term averages, the most comfortable months are November–February.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 280 m, while Butwal lies at about 141 m. Temperatures on this page were therefore adjusted by +0.9 °C1.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.