Chennai Weather in October
Chennai in October sees very high daytime temperatures of 32°C (90°F) and nighttime lows of 26°C (79°F). Rainfall is fairly high this month at around 215 mm (8.5 in), so pack a rain jacket to stay dry.
Rainfall in Chennai in October
Past climate data indicates that roughly 9 days will see rain, totalling around 215 mm (8.5 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Chennai in October
Daytime highs in Chennai in October reach 32°C (90°F), with nights around 26°C (79°F). For most visitors, the main thing to prepare for is the heat during the day. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Sunshine in Chennai in October
The days are predominantly sunny, with an estimated total of around 259 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.October in Chennai has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit India, check out our Chennai's climate page.
Chennai Temperature in October
Min Temperature
26°C (79°F)
Max Temperature
32°C (90°F)
Chance of Rain
30%
Precipitation
215 mm (8.5 in)
Rainy days
9 days
Humidity
76%
Sunshine
259 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Chennai typically stay consistent throughout October, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in October
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Chennai in October
Browse day-by-day weather records for Chennai spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Chennai historical weather extremes in October
Based on weather observations in Chennai between 2001 and 2025, these are the recorded extremes during October.
- The warmest day in October was on October 4, 2009, with a maximum of 38°C (100°F).
- On October 27, 2005, Chennai saw its coldest October day with temperatures maxing out at 22°C (72°F).
- Nighttime temperatures dropped to 19°C (66°F) on October 30, 2008, marking the coldest October night on record.
Best Places in India in October
Find out more about the weather in India and which places have the best travel conditions in this month. See all of India in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Chennai in October
Warm weather calls for comfortable, breathable clothing in October. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Chennai in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit India, check out our Chennai's climate page.
Temperature Rainfall Sunshine Humidity
See the full Chennai climate overview or explore weather in India.
