The temperatures in Westminster in September are comfortable with low of 12°C and and high up to 26°C.
You can expect about 3 to 8 days of rain in Westminster 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 Westminster in September 2025.
If you’re planning to visit Westminster in the near future, we highly recommend that you review the 14 day weather forecast for Westminster before you arrive.
Temperatures
26° / 12°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
38
mm
Sun Hours
10.0
Hrs
