Climate averages 1991–2020
Purnia 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 Purnia: daytime highs average 31.3°C and nights cool to about 25.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 338 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 03 min on an average August day.
The nearest other city in this atlas is Katihar (28 km away). In August its highs average 31.4°C, about as warm as Purnia, with 289 mm of rain.
Among the 692 cities listed in India, Purnia ranks joint 249th of 692 for the warmest August highs and joint 600th of 692 for the driest August (rainfall, lowest first). The mean August high of those 692 cities is 30.2°C; Purnia is 1.1°C warmer than that mean.
From August to September, average highs fall by 0.7°C to 30.6°C, and monthly rainfall falls from 338 mm to 295 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
Purnia climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.7°C11.3°C | 11.3°C | 12 | 1.9 | 10.711 h |
| February | 26.1°C13.8°C | 13.8°C | 17 | 2.2 | 11.311 h |
| March | 31.8°C18.8°C | 18.8°C | 20 | 3.0 | 12.012 h |
| April | 34.6°C22.6°C | 22.6°C | 50 | 7.4 | 12.813 h |
| May | 33.3°C24.2°C | 24.2°C | 160 | 16.3 | 13.413 h |
| June | 31.9°C25.3°C | 25.3°C | 315 | 23.8 | 13.714 h |
| July | 31.2°C25.7°C | 25.7°C | 375 | 29.1 | 13.614 h |
| August, selected | 31.3°C25.7°C | 25.7°C | 338 | 28.6 | 13.013 h |
| September | 30.6°C24.8°C | 24.8°C | 295 | 24.8 | 12.312 h |
| October | 29.8°C21.8°C | 21.8°C | 101 | 9.6 | 11.612 h |
| November | 27.8°C16.9°C | 16.9°C | 5.7 | 0.6 | 10.911 h |
| December | 24.5°C12.9°C | 12.9°C | 5.9 | 0.7 | 10.611 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
- Katihar in AugustIndia · 28 kmHigh 31.4°C · Low 25.9°C · 289 mm rain
- Arāria in AugustIndia · 41 kmHigh 31.1°C · Low 25.5°C · 455 mm rain
- Kishanganj in AugustIndia · 60 kmHigh 31.1°C · Low 25.5°C · 359 mm rain
- Sāhibganj in AugustIndia · 62 kmHigh 31.3°C · Low 26.0°C · 287 mm rain
- Rāiganj in AugustIndia · 68 kmHigh 31.4°C · Low 25.7°C · 318 mm rain
- Biratnagar in AugustNepal · 78 kmHigh 30.6°C · Low 25.4°C · 346 mm rain
- Bhāgalpur in AugustIndia · 78 kmHigh 31.4°C · Low 25.9°C · 261 mm rain
- Saharsa in AugustIndia · 89 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 Purnia) is explained once on the Purnia year overview and on the Sources, method and limits page.