Chennai weather in December 2025

Expect daytime maximum temperatures of 84°F in Chennai, India in December based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 5.8 inches of rainfall in the month.

  • 84°F maximum daytime temperature in December in Chennai84
    84°F max day temperature
  • 7 hours of sunshine per day
  • 6 days with some rainfall in December in Chennai6
    6 days with some rainfall
  • 70°F minimum night-time temperature in December in Chennai70
    70°F min night temperature
  • 11 hours of daylight per day in December in Chennai11
    11 hours of daylight per day
  • Moderate heat & humidity in December in ChennaiM
    Moderate heat & humidity
  • 5.8 inches monthly rainfall in December in Chennai5.8
    5.8 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in December in Chennai9
    9 (Very High) UV index
  • 81°F sea temperature in December in Chennai81
    81°F sea temperature

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The December weather guide for India (Chennai) 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)  |  Imperial (°F)

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How hot is it in Chennai in December?

Daytime temperatures usually reach 84°F in Chennai in December with moderate heat and humidity, falling to 70°F at night.

How sunny is it in Chennai in December?

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

How warm is the sea around Chennai in December?

The average sea temperature around Chennai in December is 81°F.

Does it rain in Chennai in December?

There are usually 6 days with some rain in Chennai in December and the average monthly rainfall is 5.8 inches.

What is the chance of a cyclone in Chennai in December?

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

Chennai December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:16 17:40
Tuesday, 16th December 2025 06:24 17:46
Wednesday, 31st December 2025 06:31 17:53

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