The temperatures in Gloucester in September are comfortable with low of 16°C and and high up to 20°C.
You can expect about 3 to 8 days of rain in Gloucester 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 Gloucester in September 2025.
If you’re planning to visit Gloucester in the near future, we highly recommend that you review the 14 day weather forecast for Gloucester before you arrive.
Temperatures
20° / 16°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
30
mm
Sun Hours
2.5
Hrs
