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September Weather in Purnia, India

Last updated: August 23, 2025

In September, the average temperature in Purnia, India is a warm 29°C (85°F), but be prepared for a range that can dip to a minimum of 23°C (74°F) and soar up to a scorching 36°C (98°F). Throughout the month, expect precipitation of 302 mm (11.9 in) spread over 26 days, contributing to a notably high humidity level of 90%.

September Temperature in Purnia

In September in Purnia, the average temperature is 29°C (85°F). Maximum temperatures can reach 36°C (98°F), while minimum temperatures can drop to as low as 23°C (74°F). It's a great time to visit for those who enjoy warm weather and plenty of sunshine.

September Weather in Purnia: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Purnia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Purnia, September typically has an average temperature of 29°C (85°F), with highs reaching up to 36°C (98°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec616777828386858685817365
Data source: Temperature data for Purnia generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Purnia

In Purnia in September, the total precipitation amount is 302 mm (11.9 in) spread over 26 days.

September Precipitation Trends in Purnia

The chart displays monthly precipitation patterns in Purnia, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Purnia, September typically receives around 302 mm (11.9 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec324217216928237834030214517
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Purnia

In Purnia in September humidity is 90%. With an average temperature of 29°C (85°F), this humidity feels like a heavy blanket enveloping you, making every step feel like a chore and turning even the simplest outdoor activities into a sweaty ordeal.

September Average Humidity in Purnia

This chart illustrates the average monthly humidity levels in Purnia, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Purnia is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%59%45%29%51%77%91%90%90%90%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Purnia

In Purnia in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Purnia.

Maximum UV Index Levels in Purnia for September

The chart shows the monthly maximum UV Index (UVI) for Purnia in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Purnia typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec568101011131212975
Data source: Purnia September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Purnia Compares to Other Months

Weather in Purnia varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Purnia, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Purnia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (61°F)3 mm (0.1 inches)72%moderate
February Weather19°C (67°F)24 mm (0.9 inches)59%high
March Weather25°C (77°F)21 mm (0.8 inches)45%very high
April Weather28°C (82°F)72 mm (2.8 inches)29%very high
May Weather28°C (83°F)169 mm (6.7 inches)51%very high
June Weather30°C (86°F)282 mm (11.1 inches)76%extreme
July Weather30°C (85°F)378 mm (14.9 inches)91%extreme
August Weather30°C (86°F)340 mm (13.4 inches)90%extreme
September Weather29°C (85°F)302 mm (11.9 inches)90%extreme
October Weather27°C (81°F)145 mm (5.7 inches)90%very high
November Weather23°C (73°F)1 mm (0.0 inches)88%high
December Weather18°C (65°F)7 mm (0.3 inches)87%moderate

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