Calcutta weather in September 2026

Expect daytime maximum temperatures of 32°C in Calcutta, India in September and very high heat and humidity based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 271 mm of rainfall in the month.

  • 32°C maximum daytime temperature in September in Calcutta32
    32°C max day temperature
  • 4 hours of sunshine per day
  • 12 days with some rainfall in September in Calcutta12
    12 days with some rainfall
  • 26°C minimum night-time temperature in September in Calcutta26
    26°C min night temperature
  • 12 hours of daylight per day in September in Calcutta12
    12 hours of daylight per day
  • Very high heat & humidity in September in CalcuttaVH
    Very High heat & humidity
  • 271 mm monthly rainfall in September in Calcutta271
    271 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Calcutta11
    11 (Extreme) UV index

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The September weather guide for India (Calcutta) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Calcutta in September?

Daytime temperatures usually reach 34°C in Calcutta in September with very high heat and humidity, falling to 24°C at night.

How sunny is it in Calcutta in September?

There are normally 7 hours of bright sunshine each day in Calcutta in September - that's 59% of daylight hours.

Does it rain in Calcutta in September?

There are usually 4 days with some rain in Calcutta in September and the average monthly rainfall is 126mm.

What is the chance of a cyclone in Calcutta in September?

On average less than 1 day in September in Calcutta is likely to be affected by the passage of one or more tropical storms.

Calcutta September sunrise & sunset times

Browse the sunrise and sunset times for Calcutta in September 2026. Select a month to view Calcutta sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 05:19 17:54
Tuesday, 15th September 2026 05:23 17:40
Wednesday, 30th September 2026 05:28 17:25

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