December · India
Best time to visit Chennai in December Weather, crowds & prices
Weather in Chennai in December
Average temperature 25°C, 246 mm of rain, about 12 days with 6+ hours of sunshine and 85% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
5.1/10
Ranked #11 of 12 months
- Avg temp
- 25°C
- Rainfall
- 246 mm
- Humidity
- 85%
- Days with 6h+ sun
- 12
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Chennai scores 5.1/10 for beach and coastal travel - ranked #11 of 12. Expect around 25°C, 246 mm of rain, and roughly 12 days with 6+ hours of sunshine this month.
Chennai strings Tamil temples, colonial churches and a long Marina beach along the Bay of Bengal.
December in Chennai — middling scores, decent value
December averages 25°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
246 mm of rain puts this in monsoon territory — about 12 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 5.1/10 here, 11th of 12 months, against 10/10 in the destination's best month.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? April scores 4.9 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Chennai in December?
- In December, Chennai averages 25°C, 246 mm of rain, and about 12 days with 6+ hours of sunshine. Its climate-comfort score is 5.1/10.
- Is December a good time to visit Chennai?
- December earns a 5.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Chennai in December?
- Expect about 246 mm of rain in December. Average humidity is 85% and there are about 12 days with 6+ hours of sunshine.
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