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Patna Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Patna.
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Climate overview of Patna
Patna, Bihar, India, experiences significant temperature variation throughout the year. Summers bring daytime highs of 40°C (104°F) in May, while winters cool to 24°C (75°F) in January.
The city receives considerable rainfall, with around 1166 mm (46 in) annually. July is the wettest month. It has distinct dry (November to May) and wet (June to September) seasons, with very hot summers and warm winters. The most sunshine falls in May, with an average of 10.7 hours of daily sunshine.
Patna Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Patna - and find the best time to visit.
Monthly Temperature in Patna
Depending on the time of the year, temperatures range from very hot to comfortable in Patna. Typically, average maximum daytime temperatures range from a very hot 40°C (104°F) in May to a comfortable 24°C (75°F) in the coolest month, January.
Nights vary from 28°C (82°F) in May to around 11°C (52°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Patna
Patna has a relatively rainy climate with high precipitation levels, averaging 1166 mm (46 in) of rainfall annually. The climate in Patna shows significant variation throughout the year. Expect heavy rainfall in July, the wettest month, with an average of 323 mm (13 in) of precipitation over 13 rainy days.
In contrast, the driest month November offers drier and sunnier days, with around 5.8 mm (0.2 in) of rainfall over 0 rainy days. For more details, please visit our Patna Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Patna
For those who appreciate different seasons, Patna serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 10.7 hours of sunshine daily, and embrace the darker days in July, offering only 6.0 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Patna by Month
The relative humidity is high throughout the year in Patna.
The city experiences its highest humidity in August, reaching 83%. In April, the humidity drops to its lowest level at 34%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Patna
The average wind speed over the year ranges from 1 m/s (2 knots) to 2 m/s (4 knots). It is lower in January, February, September, October, November and December and higher in March, April, May, June, July and August. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Patna
For comfortable weather, consider visiting Patna in January, February and December. Conditions are usually least favourable in March, April, May, June, July, August and September.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
excellent
Feb
excellent
Mar
very hot
Apr
very hot
May
very hot
Jun
very hot
Jul
very wet
Aug
very wet
Sep
very wet
Oct
mixed
Nov
very good
Dec
excellent
- Best overall: January, February and December
- Warmest weather: April and May
- Most sunshine: May
- Wettest months: June, July, August and September, when rainfall is highest.
- Seasonal pattern: Distinct dry (November to May) and wet (June to September) seasons, with very hot summers and warm winters
Frequently asked questions about the climate in Patna
What is the best time to visit Patna?
January, February and December typically offer the most optimal weather in Patna. In contrast, March, April, May, June, July, August and September tend to have less optimal conditions. Patna has distinct dry (November to May) and wet (June to September) seasons, with very hot summers and warm winters.
What temperatures can I expect in Patna?
Daytime highs range from 24°C (75°F) in January to 40°C (104°F) in May. Nighttime lows range from 11°C (52°F) to 28°C (82°F). Temperatures vary considerably through the year.
How much rain does Patna get?
Annual rainfall is around 1166 mm (46 in). July is the wettest month with 323 mm (13 in), while November is the driest with 5.8 mm (0.2 in).
How sunny is Patna?
Patna receives around 3,082 hours of sunshine per year. May is the sunniest month with 322 hours, while July is the cloudiest with just 180 hours. Overall, Patna enjoys abundant sunshine.
Patna 3-Day Forecast
Patna on the map
Patna is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
New Delhi
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32°C (90°F) Hyderabad31°C (88°F) Chennai
32°C (90°F) Bengaluru
29°C (84°F) Kochi29°C (84°F) Bucket list
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