Chennai weather
Best months for weather: Jan–Mar. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Chennai, Tamil Nadu, India.
Best Time to Visit
Peak season Jan–MarOff season Jul–Aug, Oct–Nov
Chennai weather by month
When is the best time to visit Chennai?
Based on weather alone, the best time to visit Chennai is Jan–Mar, according to NASA's 2001–2025 climate averages. Jul–Aug, Oct–Nov tends to be the least pleasant. Average highs run from 27°C (81°F) in December to 36°C (97°F) in May.
What is the rainiest month in Chennai?
November is the wettest month, with about 292 mm (11.5 in) of rain on average. February is the driest, with about 6 mm (0.2 in).
What is the hottest month in Chennai?
May is the warmest, with average highs of 36°C (97°F) and lows of 27°C (81°F). December is the coolest, with highs of 27°C (81°F) and lows of 22°C (71°F).
Does Chennai have a rainy season?
Yes. Oct–Nov is the rainy season (150 mm or more a month), while Jan–May is usually dry (under 60 mm).
Chennai weather month by month
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months