The temperatures in Brighton in September are usually low and can range between 13°C and 18°C.
You can expect about 3 to 8 days of rain in Brighton 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 Brighton in September 2025.
If you’re planning to visit Brighton in the near future, we highly recommend that you review the 14 day weather forecast for Brighton before you arrive.
Temperatures
18° / 13°
Rainy Days
3
Snowy Days
0
Dry Days
27
Rainfall
44
mm
Sun Hours
9.8
Hrs
