Climate averages 1991–2020
Patna weather
in October.
A hot, moderately wet month: the 8th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Patna: daytime highs average 30.2°C and nights cool to about 21.9°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 53 mm of rain on roughly 6 days, which makes October a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 35 min on an average October day.
The nearest other city in this atlas is Dinapore (10 km away). In October its highs average 30.2°C, about as warm as Patna, with 47 mm of rain.
Among the 692 cities listed in India, Patna ranks joint 413th of 692 for the warmest October highs and joint 324th of 692 for the driest October (rainfall, lowest first). The mean October high of those 692 cities is 30.6°C; Patna is 0.4°C cooler than that mean.
From October to November, average highs fall by 2.5°C to 27.7°C, and monthly rainfall falls from 53 mm to 5.9 mm.
The annual picture
October 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
Patna climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.0°C10.9°C | 10.9°C | 18 | 2.3 | 10.711 h |
| February | 25.9°C13.7°C | 13.7°C | 16 | 2.5 | 11.311 h |
| March | 32.2°C18.6°C | 18.6°C | 11 | 2.2 | 12.012 h |
| April | 37.3°C23.5°C | 23.5°C | 13 | 3.3 | 12.713 h |
| May | 38.0°C26.3°C | 26.3°C | 33 | 5.6 | 13.413 h |
| June | 35.9°C27.3°C | 27.3°C | 175 | 16.4 | 13.714 h |
| July | 32.1°C26.6°C | 26.6°C | 311 | 25.8 | 13.614 h |
| August | 31.7°C26.3°C | 26.3°C | 268 | 26.3 | 13.013 h |
| September | 31.0°C25.3°C | 25.3°C | 195 | 20.3 | 12.312 h |
| October, selected | 30.2°C21.9°C | 21.9°C | 53 | 5.9 | 11.612 h |
| November | 27.7°C16.7°C | 16.7°C | 5.9 | 0.6 | 10.911 h |
| December | 23.8°C12.4°C | 12.4°C | 7.4 | 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
October in nearby cities
- Dinapore in OctoberIndia · 10 kmHigh 30.2°C · Low 21.9°C · 47 mm rain
- Hājīpur in OctoberIndia · 13 kmHigh 30.2°C · Low 22.2°C · 53 mm rain
- Chāpra in OctoberIndia · 44 kmHigh 30.3°C · Low 21.9°C · 44 mm rain
- Jahānābād in OctoberIndia · 45 kmHigh 30.1°C · Low 21.2°C · 55 mm rain
- Arrah in OctoberIndia · 48 kmHigh 30.2°C · Low 21.7°C · 47 mm rain
- Bihār Sharīf in OctoberIndia · 59 kmHigh 30.0°C · Low 21.4°C · 58 mm rain
- Muzaffarpur in OctoberIndia · 64 kmHigh 30.2°C · Low 21.7°C · 56 mm rain
- Bāruni in OctoberIndia · 85 kmHigh 30.2°C · Low 22.2°C · 66 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 Patna) is explained once on the Patna year overview and on the Sources, method and limits page.