Chennai, Tamil Nadu, India climate
Average temperatures, precipitation and all-time records for Chennai, Tamil Nadu, India, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is May, averaging a high of 37°C, and its coldest is January, with an average low of 21°C.
Chennai, also known as Madras, is the capital and largest city of Tamil Nadu, the southernmost state of India. It is located on the Coromandel Coast of the Bay of Bengal. via Wikipedia
How today compares
Latest recorded day: 2026-10-10. Each reading placed on Chennai, Tamil Nadu, India's own ±7-day seasonal distribution.
Notable weather in Chennai
The December 2015 South Indian floods submerged much of Chennai after its heaviest rains in over a century, displacing hundreds of thousands. Read more →
Chennai average temperatures by month
Typical daily high and low, and average precipitation, for each month in Chennai, Tamil Nadu, India, based on 1980–2026 records. The wettest month is August (5 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 29°C | 21°C | 0 mm |
| February | 31°C | 22°C | 0 mm |
| March | 33°C | 24°C | 0 mm |
| April | 35°C | 26°C | 0 mm |
| May | 37°C | 28°C | 3 mm |
| June | 36°C | 28°C | 3 mm |
| July | 35°C | 27°C | 3 mm |
| August | 34°C | 27°C | 5 mm |
| September | 34°C | 26°C | 3 mm |
| October | 32°C | 25°C | 5 mm |
| November | 29°C | 23°C | 5 mm |
| December | 28°C | 22°C | 3 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
Thinking of visiting Chennai?
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Record extremes
- Hottest day on record: 43°C on 1983-05-31
- Coldest day on record: 15°C on 1981-12-11
Percentiles compare each day to Chennai, Tamil Nadu, India's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →