Climate averages 1991–2020
Birgañj weather
in August.
A hot, very wet month: the 6th 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 Birgañj: daytime highs average 31.0°C and nights cool to about 25.6°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 347 mm of rain on roughly 28 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 06 min on an average August day.
The nearest other city in this atlas is Mothīhāri (41 km away). In August its highs average 31.5°C, about as warm as Birgañj, with 385 mm of rain.
Among the 16 cities listed in Nepal, Birgañj ranks 1st of 16 for the warmest August highs and 7th of 16 for the driest August (rainfall, lowest first). The mean August high of those 16 cities is 29.3°C; Birgañj is 1.7°C warmer than that mean.
From August to September, average highs fall by 0.5°C to 30.5°C, and monthly rainfall falls from 347 mm to 225 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
Birgañj climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 21.7°C10.2°C | 10.2°C | 13 | 1.8 | 10.611 h |
| February | 25.3°C12.6°C | 12.6°C | 17 | 2.1 | 11.211 h |
| March | 31.3°C17.0°C | 17.0°C | 12 | 2.1 | 12.012 h |
| April | 35.7°C21.9°C | 21.9°C | 26 | 5.2 | 12.813 h |
| May | 35.6°C24.9°C | 24.9°C | 76 | 11.4 | 13.513 h |
| June | 33.8°C26.1°C | 26.1°C | 226 | 20.5 | 13.814 h |
| July | 31.1°C25.7°C | 25.7°C | 441 | 28.6 | 13.714 h |
| August, selected | 31.0°C25.6°C | 25.6°C | 347 | 28.1 | 13.113 h |
| September | 30.5°C24.5°C | 24.5°C | 225 | 22.7 | 12.312 h |
| October | 29.8°C20.7°C | 20.7°C | 45 | 5.1 | 11.512 h |
| November | 27.4°C15.7°C | 15.7°C | 4.7 | 0.5 | 10.811 h |
| December | 23.5°C11.7°C | 11.7°C | 7.1 | 0.7 | 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
August in nearby cities
- Mothīhāri in AugustIndia · 41 kmHigh 31.5°C · Low 25.9°C · 385 mm rain
- Bettiah in AugustIndia · 44 kmHigh 31.4°C · Low 25.8°C · 332 mm rain
- Hetauda in AugustNepal · 48 kmHigh 28.5°C · Low 23.9°C · 485 mm rain
- Bagaha (Bihar, 27.10°N 84.09°E), India in AugustIndia · 79 kmHigh 31.1°C · Low 25.8°C · 358 mm rain
- Bharatpur, Nepal in AugustNepal · 86 kmHigh 30.1°C · Low 25.1°C · 555 mm rain
- Madhyapur Thimi in AugustNepal · 89 kmHigh 25.2°C · Low 20.0°C · 571 mm rain
- Siwān in AugustIndia · 103 kmHigh 31.5°C · Low 26.0°C · 294 mm rain
- Kushinagar in AugustIndia · 103 kmHigh 31.4°C · Low 25.9°C · 310 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 Birgañj) is explained once on the Birgañj year overview and on the Sources, method and limits page.