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Patna Weather by Month
Average temperatures, rainfall and humidity for Patna, India, month by month, built from OpenWeather’s historical records. Use it to see what a typical Patna month looks like before you travel — then check the live Patna forecast for the days ahead.
Warmest month
May
37°C average high
Coolest month
January
10°C average low
Wettest month
December
117 mm of rain
Driest month
March
9 mm of rain
Average temperature and rainfall in Patna by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 21°C | 10°C | 2°C / 28°C | 100 mm | 81% | 7 km/h |
| February | 26°C | 13°C | 7°C / 34°C | 10 mm | 70% | 8 km/h |
| March | 32°C | 18°C | 9°C / 41°C | 9 mm | 56% | 9 km/h |
| April | 37°C | 23°C | 16°C / 44°C | 9 mm | 46% | 11 km/h |
| May | 37°C | 25°C | 19°C / 46°C | 20 mm | 59% | 12 km/h |
| June | 37°C | 28°C | 21°C / 47°C | 51 mm | 67% | 12 km/h |
| July | 34°C | 27°C | 22°C / 41°C | 88 mm | 80% | 12 km/h |
| August | 33°C | 26°C | 22°C / 39°C | 90 mm | 83% | 10 km/h |
| September | 33°C | 26°C | 22°C / 38°C | 64 mm | 83% | 9 km/h |
| October | 32°C | 22°C | 16°C / 36°C | 44 mm | 75% | 7 km/h |
| November | 28°C | 16°C | 10°C / 35°C | 96 mm | 71% | 5 km/h |
| December | 23°C | 11°C | 5°C / 31°C | 117 mm | 76% | 6 km/h |
Best time to visit Patna
The most comfortable time to visit Patna is generally December to February, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around December, totalling about 697 mm a year.
Travellers who prefer heat should aim for May, when highs average 37°C. December is the month to avoid if rain would spoil your plans — it averages 117 mm, roughly 14× the rainfall of the driest month (March).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Patna forecast for what is happening now.
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