Climate averages 1991–2020
Biratnagar weather
in April.
A hot, fairly dry month: the warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Biratnagar: daytime highs average 33.9°C and nights cool to about 22.1°C. By daytime temperature it is the warmest month of the year.
Expect about 34 mm of rain on roughly 6 days, which makes April a fairly dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 46 min on an average April day.
The nearest other city in this atlas is Inaruwa (21 km away). In April its highs average 33.2°C, 0.7°C cooler than Biratnagar, with 34 mm of rain.
Among the 16 cities listed in Nepal, Biratnagar ranks joint 7th of 16 for the warmest April highs and joint 9th of 16 for the driest April (rainfall, lowest first). The mean April high of those 16 cities is 32.4°C; Biratnagar is 1.5°C warmer than that mean.
From April to May, average highs fall by 1.1°C to 32.8°C, and monthly rainfall rises from 34 mm to 118 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Biratnagar climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.3°C11.1°C | 11.1°C | 8.9 | 1.4 | 10.711 h |
| February | 25.3°C13.5°C | 13.5°C | 12 | 1.7 | 11.211 h |
| March | 31.0°C17.9°C | 17.9°C | 12 | 2.4 | 12.012 h |
| April, selected | 33.9°C22.1°C | 22.1°C | 34 | 6.2 | 12.813 h |
| May | 32.8°C24.2°C | 24.2°C | 118 | 14.9 | 13.413 h |
| June | 31.2°C25.2°C | 25.2°C | 306 | 24.5 | 13.814 h |
| July | 30.4°C25.4°C | 25.4°C | 412 | 29.5 | 13.614 h |
| August | 30.6°C25.4°C | 25.4°C | 346 | 28.5 | 13.113 h |
| September | 30.0°C24.4°C | 24.4°C | 277 | 23.0 | 12.312 h |
| October | 29.4°C21.0°C | 21.0°C | 77 | 6.1 | 11.612 h |
| November | 27.3°C16.1°C | 16.1°C | 3.6 | 0.6 | 10.911 h |
| December | 24.0°C12.4°C | 12.4°C | 3.9 | 0.5 | 10.511 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Inaruwa in AprilNepal · 21 kmHigh 33.2°C · Low 21.2°C · 34 mm rain
- Dharān in AprilNepal · 40 kmHigh 30.4°C · Low 18.5°C · 44 mm rain
- Arāria in AprilIndia · 42 kmHigh 34.2°C · Low 22.4°C · 70 mm rain
- Triyuga in AprilNepal · 68 kmHigh 33.3°C · Low 20.4°C · 32 mm rain
- Purnia in AprilIndia · 78 kmHigh 34.6°C · Low 22.6°C · 50 mm rain
- Kishanganj in AprilIndia · 79 kmHigh 33.5°C · Low 22.3°C · 67 mm rain
- Lahān in AprilNepal · 84 kmHigh 34.1°C · Low 21.3°C · 31 mm rain
- Saharsa in AprilIndia · 93 kmHigh 35.7°C · Low 22.9°C · 25 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Biratnagar) is explained once on the Biratnagar year overview and on the Sources, method and limits page.
Inaruwa lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.