October · India
Best time to visit Chennai in October Weather, crowds & prices
Weather in Chennai in October
Average temperature 28°C, 180 mm of rain, about 19 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
October score
6.5/10
Ranked #10 of 12 months
- Avg temp
- 28°C
- Rainfall
- 180 mm
- Humidity
- 81%
- Days with 6h+ sun
- 19
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
October in Chennai scores 6.5/10 for beach and coastal travel - ranked #10 of 12. Expect around 28°C, 180 mm of rain, and roughly 19 days with 6+ hours of sunshine this month.
Chennai strings Tamil temples, colonial churches and a long Marina beach along the Bay of Bengal.
October in Chennai: mixed conditions, plan around the weather
Days in October average 28°C (82°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
180 mm of rain signals a properly wet month, with only about 19 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 6.5/10 on the same scale — 10th of 12 months, versus 10/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, April is materially better in Chennai — 3.5 points higher on the same scale.
Frequently asked
- What is the weather like in Chennai in October?
- In October, Chennai averages 28°C, 180 mm of rain, and about 19 days with 6+ hours of sunshine. Its climate-comfort score is 6.5/10.
- Is October a good time to visit Chennai?
- October earns a 6.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Chennai in October?
- Expect about 180 mm of rain in October. Average humidity is 81% and there are about 19 days with 6+ hours of sunshine.
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