When to go · Chennai
Chennai in October
Avoid month. Listed as a month to avoid: May–Jun (35–42°C), Oct–Dec (northeast monsoon rain).Avoid month. Listed as a month to avoid: May–Jun (95–108°F), Oct–Dec (northeast monsoon rain).
Key facts
- Verdict
- Avoid
- Temperature
- 32°C90°F / 25°C77°F
- average high / low
- Rain days
- 12
- Crowds
- Medium
- India overall
- Prices
- Medium
- India overall
Verdict
Listed as a month to avoid: May–Jun (35–42°C), Oct–Dec (northeast monsoon rain).Listed as a month to avoid: May–Jun (95–108°F), Oct–Dec (northeast monsoon rain).
Weather in October
- ChennaiHighs around 32 °C, lows around 25 °C, rain on about 12 daysHighs around 90 °F, lows around 77 °F, rain on about 12 days
- Tamil Nadu and the east coast, India · Chennai, Madurai, Puducherry, Mamallapuramrainy
Opposite rhythm: the north-east monsoon and cyclones hit October–December; January–February is the easy window.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Durga Puja and Dussehra big impact
~17–21 Oct 2026 (check) · India
Kolkata's pandals draw millions; trains to the east sell out; effigies burnt across the north on Dussehra.
Diwali big impact
~8 Nov 2026; ~29 Oct 2027 (check) · India
Biggest travel week of the year: trains and flights full, fireworks for days, smog spikes in the north.
Crowds and prices
- Crowds · India overall
- Medium
- Prices · India overall
- Medium
India overall: Post-monsoon clarity in the north and hills; Durga Puja and Dussehra; the south-east coast turns wet.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A rain jacket or umbrella and shoes that dry fast