Climate averages 1991–2020
Lahān weather
in April.
A very 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 very hot month in Lahān: daytime highs average 34.1°C and nights cool to about 21.3°C. By daytime temperature it is the warmest month of the year.
Expect about 31 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 47 min on an average April day.
The nearest other city in this atlas is Triyuga (23 km away). In April its highs average 33.3°C, 0.8°C cooler than Lahān, with 32 mm of rain.
Among the 16 cities listed in Nepal, Lahān ranks 5th of 16 for the warmest April highs and 7th of 16 for the driest April (rainfall, lowest first). The mean April high of those 16 cities is 32.4°C; Lahān is 1.7°C warmer than that mean.
From April to May, average highs fall by 0.5°C to 33.6°C, and monthly rainfall rises from 31 mm to 97 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
Lahān climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 21.4°C10.1°C | 10.1°C | 11 | 1.7 | 10.711 h |
| February | 24.9°C12.5°C | 12.5°C | 12 | 2.1 | 11.211 h |
| March | 30.7°C16.8°C | 16.8°C | 12 | 2.4 | 12.012 h |
| April, selected | 34.1°C21.3°C | 21.3°C | 31 | 5.7 | 12.813 h |
| May | 33.6°C24.0°C | 24.0°C | 97 | 13.6 | 13.413 h |
| June | 31.6°C25.1°C | 25.1°C | 253 | 23.0 | 13.814 h |
| July | 29.9°C25.1°C | 25.1°C | 412 | 27.5 | 13.614 h |
| August | 30.0°C25.1°C | 25.1°C | 279 | 27.2 | 13.113 h |
| September | 29.5°C24.0°C | 24.0°C | 239 | 22.9 | 12.312 h |
| October | 28.8°C20.3°C | 20.3°C | 57 | 6.8 | 11.512 h |
| November | 26.5°C15.3°C | 15.3°C | 3.8 | 0.5 | 10.911 h |
| December | 23.1°C11.6°C | 11.6°C | 4.0 | 0.8 | 10.510 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
- Triyuga in AprilNepal · 23 kmHigh 33.3°C · Low 20.4°C · 32 mm rain
- Janakpur in AprilNepal · 55 kmHigh 35.4°C · Low 22.6°C · 27 mm rain
- Madhubani in AprilIndia · 58 kmHigh 35.7°C · Low 22.9°C · 26 mm rain
- Inaruwa in AprilNepal · 67 kmHigh 33.2°C · Low 21.2°C · 34 mm rain
- Dharān in AprilNepal · 80 kmHigh 30.4°C · Low 18.5°C · 44 mm rain
- Benipur in AprilIndia · 81 kmHigh 36.1°C · Low 23.1°C · 26 mm rain
- Biratnagar in AprilNepal · 84 kmHigh 33.9°C · Low 22.1°C · 34 mm rain
- Darbhanga in AprilIndia · 86 kmHigh 36.1°C · Low 23.1°C · 26 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 Lahān) is explained once on the Lahān year overview and on the Sources, method and limits page.