Climate of Tamil Nadu, India
Area-weighted average across Tamil Nadu. For where people actually live and travel, see the cities below.
Tamil Nadu, a subdivision of India, has a consistently warm climate on average. Area-weighted monthly temperatures across the whole territory range from 24.2°C / 75.6°F in December to 30.4°C / 86.7°F in May, with rainfall from 14 mm / 0.6 in to 195 mm / 7.7 in depending on the season (953 mm / 37.5 in total across the year). See the 7 cities listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 24.4°C75.9°F | 19 mm0.7″ | Sunny & Warm |
| February | 26°C78.8°F | 14 mm0.6″ | Sunny & Hot, Sunny & Warm |
| March | 28.2°C82.8°F | 17 mm0.7″ | Sunny & Hot |
| April | 29.8°C85.6°F | 45 mm1.8″ | — |
| May | 30.4°C86.7°F | 71 mm2.8″ | — |
| June | 29.4°C84.9°F | 53 mm2.1″ | — |
| July | 28.4°C83.1°F | 83 mm3.3″ | Tropical |
| August | 28.1°C82.6°F | 102 mm4″ | Tropical |
| September | 27.9°C82.2°F | 106 mm4.2″ | Tropical |
| October | 26.8°C80.2°F | 195 mm7.7″ | Tropical |
| November | 25.3°C77.5°F | 164 mm6.5″ | Tropical |
| December | 24.2°C75.6°F | 84 mm3.3″ | Tropical |
Frequently asked questions
What is the best time to visit Tamil Nadu?
The best months to visit Tamil Nadu, India for sunny, dry weather are January, February, March. The warmest month is May at an area-wide average of 30.4°C / 86.7°F, and the driest is February with about 14 mm / 0.6 in of rainfall.
What is the climate of Tamil Nadu?
Tamil Nadu, India has area-weighted monthly average temperatures ranging from 24.2°C / 75.6°F in December to 30.4°C / 86.7°F in May. Annual rainfall averages about 953 mm / 37.5 in, with the wettest month being October (195 mm / 7.7 in) and the driest February (14 mm / 0.6 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Tamil Nadu?
The hottest month in Tamil Nadu is May, with an area-wide average temperature of 30.4°C / 86.7°F.
What is the coldest month in Tamil Nadu?
The coldest month in Tamil Nadu is December, with an area-wide average temperature of 24.2°C / 75.6°F.
When does it rain most in Tamil Nadu?
The wettest month in Tamil Nadu is October, averaging about 195 mm / 7.7 in of rainfall. The driest is February with about 14 mm / 0.6 in.