Climate averages 1991–2020
Biratnagar weather
in August.
A hot, very wet month: the 5th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Biratnagar: daytime highs average 30.6°C and nights cool to about 25.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 346 mm of rain on roughly 29 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 04 min on an average August day.
The nearest other city in this atlas is Inaruwa (21 km away). In August its highs average 30.0°C, 0.6°C cooler than Biratnagar, with 346 mm of rain.
Among the 16 cities listed in Nepal, Biratnagar ranks 4th of 16 for the warmest August highs and joint 5th of 16 for the driest August (rainfall, lowest first). The mean August high of those 16 cities is 29.3°C; Biratnagar is 1.3°C warmer than that mean.
From August to September, average highs fall by 0.6°C to 30.0°C, and monthly rainfall falls from 346 mm to 277 mm.
The annual picture
August 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 | 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, selected | 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
August in nearby cities
- Inaruwa in AugustNepal · 21 kmHigh 30.0°C · Low 25.1°C · 346 mm rain
- Dharān in AugustNepal · 40 kmHigh 28.6°C · Low 24.1°C · 371 mm rain
- Arāria in AugustIndia · 42 kmHigh 31.1°C · Low 25.5°C · 455 mm rain
- Triyuga in AugustNepal · 68 kmHigh 29.9°C · Low 25.2°C · 291 mm rain
- Purnia in AugustIndia · 78 kmHigh 31.3°C · Low 25.7°C · 338 mm rain
- Kishanganj in AugustIndia · 79 kmHigh 31.1°C · Low 25.5°C · 359 mm rain
- Lahān in AugustNepal · 84 kmHigh 30.0°C · Low 25.1°C · 279 mm rain
- Saharsa in AugustIndia · 93 kmHigh 31.4°C · Low 25.8°C · 287 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.