Chennai, India — Weather in December 2026

Climate Overview

Chennai, India in December has warm conditions, with highs averaging 27.7°C (82°F). Rain falls on about 10 days this month. Sea temperature reaches 27.1°C (81°F).

This month falls at the beginning of Winter.

Temperatures remain fairly steady throughout December, with daily highs around 28°C (82°F).

Rainfall is heaviest during the first third of the month, while the last third tends to be drier.

Expect around 7.4h of sunshine at the start of December, increasing to 10.0h by the end.

The warmest days tend to fall around the 7th, averaging 28.3°C (83°F).

Compared to November, this month is about 1°C cooler with 9 fewer rainy days.

Monthly December Averages

Temperature

28°C / 23°C

Feels Like

30°C / 25°C

Rain

10 days · 148 mm

Sunshine

9.1h / day

Humidity

79% — Humid

Wind

20 km/h

Wind Direction

NE (39°)

Gusts

35 km/h

Daylight

11.4 h

Cloud Cover

59%

Clear Sky Days

2.2

UV Index

6.1 — High

Sea Temperature

27°C

Dew Point

21°C — Muggy

Moon Phase

Waxing Crescent · 31%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:24

Daylight 11.4h

Sunset 17:46

What to Expect

Daytime temperatures around 28°C (82°F) are ideal for full-day outdoor exploration.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

Recent yearly records for December have stayed close to the long-run average.

Compare Months

1days (5 mm) Excellent

1days (7 mm) Excellent

2days (6 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January best	28°C / 21°C	31°C / 24°C	5days (29 mm) Good	9.9h Good	76% Humid	6.7 High	Excellent	View Details
February best	30°C / 21°C	33°C / 24°C	1days (5 mm) Excellent	10.5h Excellent	74% Muggy	8.2 Very High	Excellent	View Details
March	33°C / 24°C	37°C / 28°C	1days (7 mm) Excellent	11h Excellent	74% Muggy	9 Very High	Fair	View Details
April	35°C / 26°C	40°C / 32°C	2days (6 mm) Excellent	11.2h Excellent	73% Muggy	9.2 Very High	Poor	View Details
May	36°C / 28°C	41°C / 32°C	5days (69 mm) Good	10.5h Excellent	70% Muggy	8.2 Very High	Poor	View Details
June	35°C / 28°C	40°C / 31°C	13days (71 mm) Wet	9.3h Good	66% Muggy	7.7 Very High	Poor	View Details
July	33°C / 27°C	38°C / 30°C	16days (108 mm) Wet	8h Good	68% Muggy	7 High	Poor	View Details
August	33°C / 26°C	38°C / 30°C	17days (106 mm) Wet	8.5h Good	72% Muggy	7.7 Very High	Poor	View Details
September	32°C / 26°C	38°C / 30°C	16days (104 mm) Wet	8.8h Good	75% Muggy	8.3 Very High	Poor	View Details
October	31°C / 25°C	36°C / 29°C	19days (172 mm) Wet	9.2h Good	80% Humid	7.6 Very High	Wet	View Details
November	29°C / 24°C	32°C / 27°C	19days (313 mm) Wet	8.1h Good	83% Humid	6.3 High	Wet	View Details
December best	28°C / 23°C	30°C / 25°C	10days (148 mm) Wet	9.1h Good	79% Humid	6.1 High	Excellent	View Details

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketBreathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is December a good time to visit Chennai?

December is typically excellent for visiting Chennai, with average highs of 28°C (82°F) and around 10 rainy days. Chennai, India in December has warm conditions, with highs averaging 27.7°C (82°F). Rain falls on about 10 days this mon

Does it rain a lot in Chennai in December?

Chennai typically sees around 10 rainy days in December with 148 mm (5.8 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Chennai in December?

Nights stay pleasantly warm in Chennai during December, around 23°C (73°F). Light evening wear is sufficient.

What should I pack for Chennai in December?

With highs of 28°C (82°F) and lows of 23°C (73°F) in December, we recommend: Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. Comfortable walking shoes are essential.

Is December among the best months weather-wise in Chennai?

Yes, December offers some of the best weather conditions in Chennai with comfortable temperatures and lower chances of rain.

What is the UV index in Chennai in December?

The average UV index in Chennai during December is 6 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Chennai in December?

Chennai gets approximately 11 hours of daylight per day in December, with around 9 hours of sunshine.

Does it snow in Chennai in December?

Snow is uncommon in Chennai during December based on 10-year climate averages.

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