The temperatures in Colchester in September are usually low and can range between 13°C and 19°C.
You can expect about 3 to 8 days of rain in Colchester 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 Colchester in September 2025.
If you’re planning to visit Colchester in the near future, we highly recommend that you review the 14 day weather forecast for Colchester before you arrive.
Temperatures
19° / 13°
Rainy Days
3
Snowy Days
0
Dry Days
27
Rainfall
42
mm
Sun Hours
9.5
Hrs
