Saint Thomas Mount Weather in December
What's the weather like in Saint Thomas Mount (Tamil Nādu) in December 2025?
The climate in Saint Thomas Mount during December can be summarized as hot, humid and wet.
December is in the winter in Saint Thomas Mount and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (83°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 28.5°C 83.2°F |
|---|---|
| Nightly temperature | 21.2°C 70.1°F |
| Average temperature | 24.8°C 76.6°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 154 mm 6 ins |
| Rainy days | 6 days |
| Sea temperature | 27.2°C 81°F |
| Humidity | 78% |
| Windspeed | 9.7kph 6 mph |
On average December is the 4th wettest month of the year in Saint Thomas Mount with around 154mm 6 inches of rain making it a wet time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
December temperatures in Saint Thomas Mount
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Saint Thomas Mount in December 2025.
Other monthly averages
Best places to visit in December
Saint Thomas Mount weather stats
| Hottest month: | May | 37.7°C 99.9°F |
|---|---|---|
| Driest month: | March | 4mm 0.2ins |
| Sunniest month: | February | 10hrs |
| Coldest month: | January | 28.4°C 83.1°F |
| Wettest month: | November | 349mm 13.7ins |
© Google
Locations nearby
Top India locations
- Āgra
- Amritsar
- Bangalore
- Bhopāl
- Bodhgaya
- Calangute
- Chennai
- Hyderābād
- Jaipur
- Kochi
- Kolkata
- Manāli
- Mumbai
- Mysore
- New Delhi
- Pune
- Shimla