Chittagong weather in September 2025

Expect 31°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Chittagong in September. Check more long-term weather averages for Chittagong in September before you book your next holiday to Bangladesh in 2025/2026.

  • 31°C maximum daytime temperature in September in Chittagong31
    31°C max day temperature
  • 4 hours of sunshine per day
  • 14 days with some rainfall in September in Chittagong14
    14 days with some rainfall
  • 25°C minimum night-time temperature in September in Chittagong25
    25°C min night temperature
  • 12 hours of daylight per day in September in Chittagong12
    12 hours of daylight per day
  • Very high heat & humidity in September in ChittagongVH
    Very High heat & humidity
  • 284 mm monthly rainfall in September in Chittagong284
    284 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Chittagong11
    11 (Extreme) UV index
  • 29°C sea temperature in September in Chittagong29
    29°C sea temperature

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The September weather guide for Bangladesh (Chittagong) 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 Chittagong in September?

Daytime temperatures usually reach 31°C in Chittagong in September with very high heat and humidity, falling to 25°C at night.

How sunny is it in Chittagong in September?

There are normally 4 hours of bright sunshine each day in Chittagong in September - that's 30% of daylight hours.

How warm is the sea around Chittagong in September?

The average sea temperature around Chittagong in September is 29°C.

Does it rain in Chittagong in September?

There are usually 14 days with some rain in Chittagong in September and the average monthly rainfall is 284mm.

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

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

Chittagong September sunrise & sunset times

Browse the sunrise and sunset times for Chittagong in September 2025. Select a month to view Chittagong sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:35 19:10
Monday, 15th September 2025 06:39 18:56
Tuesday, 30th September 2025 06:44 18:41

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