September weather forecast
Patna, India

With the retreat of the monsoon, September experiences a visible reduction in rainfall to 229mm (9.02"). The weather begins to dry up gradually as the rainfall recedes, yet the city remains bathed in the lush of monsoon’s greenery. The temperature during the day and night remains stable with a minute change from the preceding month. The sun becomes a more constant presence, indicating the end of the monsoon season. As October approaches, the mercury drops, signaling the onset of autumn-like conditions.

Temperature

Entering September in Patna, the average high-temperature is recorded at a still tropical 32.2°C (90°F), exhibiting a minimal shift from August's 32.5°C (90.5°F). Patna, during the nights of September, experiences an average temperature drop to a moderately hot 25.3°C (77.5°F).

Rainfall

In Patna, in September, during 10.2 rainfall days, 229mm (9.02") of precipitation is typically accumulated. In Patna, during the entire year, the rain falls for 55.9 days and collects up to 1213mm (47.76") of precipitation.

Daylight

In September, the average length of the day is 12h and 18min.
On the first day of September, sunrise is at 5:29 am and sunset at 6:08 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 5:37 pm IST.

Sunshine

In September, the average sunshine is 4h.

UV index

In September, the average daily maximum UV index is 11. A UV Index value of 11, and more, symbolizes an excessive health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 11 suggests these recommendations:
Practice all essential precautions. Protection against sun damage is crucial. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Apply generously and frequently reapply a sunscreen with SPF 30 or more even on cloudy days, particularly after a swim or outdoor exercise.