Tamil Nadu (Chennai)
December
Weather in Tamil Nadu for December 2025
Your guide to Tamil Nadu weather in December - trends and predictions
Until now, December 2025 in Tamil Nadu is slightly cooler than the historical average by -1 °C.
Expect cooler weather in the next days in Tamil Nadu with the forecast suggesting a temperature of 26.5 °C, lower than the historical average.
In general, the average temperature in Tamil Nadu at the beginning of December is 27.7 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 27.3 °C by the end of December.
Tamil Nadu in December brings notable rainfall, with an average of 19 rainy days and a total precipitation of 346 mm.
Temperatures
Rain 🌧️
12
Dry days
19
Rainy days
0
Snow days
27°/24°
Temperatures
25 km/h
Avg max wind
76 %
Avg humidity
Tamil Nadu Weather December
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What’s the Weather Like in Tamil Nadu This December?
Discover the average temperatures and weather trends across Tamil Nadu’s cities this December.
Temperatures trend during December in Tamil Nadu
See the weather trend as well as the moving average line
December weather in Tamil Nadu day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Light rain shower | 28° /24° | 14.7 mm | 6 | |
| 2 Dec. | Light rain shower | 26° /24° | 22.9 mm | 6 | |
| 3 Dec. |  Torrential rain shower | 28° /24° | 43 mm | 6 | |
| 4 Dec. |  Moderate or heavy rain shower | 27° /24° | 106.4 mm | 6 | |
| 5 Dec. | Patchy rain possible | 29° /24° | 2.4 mm | 6 | |
| 6 Dec. | Patchy rain possible | 28° /25° | 1.6 mm | 6 | |
| 7 Dec. | Patchy rain possible | 28° /24° | 5 mm | 6 | |
| 8 Dec. | Patchy rain possible | 28° /24° | 0.6 mm | 6 | |
| 9 Dec. | Patchy rain possible | 28° /24° | 2.1 mm | 6 | |
| 10 Dec. | Light rain shower | 28° /24° | 0.5 mm | 6 | |
| 11 Dec. | Patchy rain possible | 27° /24° | 6.6 mm | 6 | |
| 12 Dec. |  Partly cloudy | 27° /24° | 21.8 mm | 7 | |
| 13 Dec. |  Sunny | 27° /22° | 0 mm | 1.9 | |
| 14 Dec. | Sunny | 27° /22° | 0 mm | 1.8 | |
| 15 Dec. | Sunny | 26° /22° | 0 mm | 1.8 | |
| 16 Dec. |  Overcast | 27° /23° | 0 mm | 1.7 | |
| 17 Dec. | Patchy rain possible | 27° /24° | 0.1 mm | 2.4 | |
| 18 Dec. | Sunny | 27° /23° | 0 mm | 6 | |
| 19 Dec. | Sunny | 26° /22° | 0 mm | 6 | |
| 20 Dec. | Sunny | 26° /22° | 0 mm | 6 | |
| 21 Dec. | Sunny | 26° /22° | 0 mm | 6 | |
| 22 Dec. | Sunny | 26° /22° | 0 mm | 6 | |
| 23 Dec. | Sunny | 26° /22° | 0 mm | 6 | |
| 24 Dec. | Sunny | 26° /22° | 0 mm | 6 | |
| 25 Dec. | Sunny | 27° /22° | 0 mm | 6 | |
| 26 Dec. | Partly cloudy | 27° /23° | 0.1 mm | 7 | |
| 27 Dec. | Patchy rain possible | 28° /24° | 5 mm | 6 | |
| 28 Dec. | Patchy rain possible | 28° /24° | 0.4 mm | 6 | |
| 29 Dec. | Patchy rain possible | 27° /24° | 0.2 mm | 6 | |
| 30 Dec. | Partly cloudy | 27° /24° | 0.2 mm | 7 | |
| 31 Dec. | Patchy rain possible | 27° /23° | 0.3 mm | 6 | |
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Important Notice
Our weather forecast for Tamil Nadu in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Tamil Nadu forecast closer to your planned date for the most up-to-date weather information.
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Tamil Nadu in December - FAQ
What are the expected maximum and minimum temperatures in Tamil Nadu during December?
During December, expect a variety of temperatures with highs around 27° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Tamil Nadu during December?
Significant rainfall exceeding 346 mm is expected in Tamil Nadu during December, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Tamil Nadu during December?
The average wind speed in Tamil Nadu during December is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Tamil Nadu
Explore the daily rainfall trends and prepare for Tamil Nadus December weather 💧
Typically, Tamil Nadu has 19 rainy days in December with a total of 346 mm of rainfall.
UV exposure in Tamil Nadu during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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