The temperatures in Chillan in September are quite cold with temperatures between 6°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Chillan during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Chillan in September 2026.
If you’re planning to visit Chillan in the near future, we highly recommend that you review the 14 day weather forecast for Chillan before you arrive.
Temperatures
17° / 6°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
124
mm
Sun Hours
10.0
Hrs
