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Chennai Weather by Month
Average temperatures, rainfall and humidity for Chennai, India, month by month, built from OpenWeather's historical records. Use it to see what a typical Chennai month looks like before you travel — then check the live Chennai forecast for the days ahead.
Warmest month
June
36°C average high
Coolest month
January
23°C average low
Wettest month
November
125 mm of rain
Driest month
April
8 mm of rain
Average temperature and rainfall in Chennai by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 29°C | 23°C | 19°C / 33°C | 9 mm | 77% | 11 km/h |
| February | 31°C | 23°C | 19°C / 35°C | 11 mm | 74% | 11 km/h |
| March | 33°C | 25°C | 20°C / 40°C | 8 mm | 73% | 12 km/h |
| April | 35°C | 28°C | 23°C / 41°C | 8 mm | 74% | 14 km/h |
| May | 36°C | 29°C | 23°C / 43°C | 27 mm | 71% | 14 km/h |
| June | 36°C | 28°C | 23°C / 42°C | 46 mm | 68% | 15 km/h |
| July | 35°C | 27°C | 23°C / 40°C | 47 mm | 69% | 14 km/h |
| August | 34°C | 27°C | 23°C / 39°C | 43 mm | 75% | 13 km/h |
| September | 34°C | 26°C | 22°C / 37°C | 66 mm | 76% | 13 km/h |
| October | 32°C | 26°C | 22°C / 36°C | 66 mm | 81% | 10 km/h |
| November | 30°C | 24°C | 19°C / 35°C | 125 mm | 82% | 11 km/h |
| December | 29°C | 23°C | 19°C / 33°C | 68 mm | 79% | 12 km/h |
Best time to visit Chennai
The most comfortable time to visit Chennai is generally December to February, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around November, totalling about 524 mm a year.
Travellers who prefer heat should aim for June, when highs average 36°C. November is the month to avoid if rain would spoil your plans — it averages 125 mm, roughly 16× the rainfall of April.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Chennai forecast for what is happening now.