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Weather in City of Westminster for September 2025

Your guide to City of Westminster weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Yellow Wind Warning - See hour by hour.

    • Temperatures

  • Until now, September 2025 in City of Westminster has been significantly cooler than historical averages by -2 °C, with average temperature of 20.2 °C.

  • Expect cooler weather in the next days in City of Westminster with the forecast suggesting a temperature of 19.1 °C, lower than the historical average.

  • In general, the average temperature in City of Westminster at the beginning of September is 22.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °C by the end of September.

    • Rain 🌧️

  • City of Westminster in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 93.2 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
11
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/14°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
69 %
Avg humidity

City of Westminster Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
22°
2
Patchy rain possible
21°
3
Light rain shower
23°
4
Sunny
21°
5
Partly cloudy
22°
6
Cloudy
25°
7
Patchy rain possible
25°
8
Sunny
24°
9
Sunny
23°
10
Partly cloudy
23°
11
Cloudy
20°
12
Overcast
17°
13
Overcast
18°
14
Weather Alert Patchy rain possible
17°
15
Weather Alert Patchy rain possible
19°
16
Patchy rain possible
18°
17
Patchy rain possible
17°
18
Patchy rain possible
19°
19
Sunny
22°
20
Sunny
26°
21
Patchy rain possible
21°
22
Overcast
19°
23
Sunny
19°
24
Sunny
19°
25
Patchy rain possible
20°
26
Partly cloudy
19°
27
Moderate rain
13°
28
Overcast
17°
29
Patchy rain possible
16°
30
Cloudy
17°

Temperatures trend during September in City of Westminster

See the weather trend as well as the moving average line

September weather in City of Westminster day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
 22° /14° 4.4 mm 5
2 Sept. Patchy rain possible
Patchy rain possible
 21° /15° 2.1 mm 5
3 Sept. Light rain shower
Light rain shower
 23° /15° 2.6 mm 5
4 Sept. Sunny
Sunny
 21° /14° 4.9 mm 5
5 Sept. Partly cloudy
Partly cloudy
 22° /14° 2.7 mm 6
6 Sept. Cloudy
Cloudy
 25° /16° 1.6 mm 6
7 Sept. Patchy rain possible
Patchy rain possible
 25° /16° 2.9 mm 6
8 Sept. Sunny
Sunny
 24° /16° 6.7 mm 6
9 Sept. Sunny
Sunny
 23° /15° 0 mm 6
10 Sept. Partly cloudy
Partly cloudy
 23° /15° 1.9 mm 5
11 Sept. Cloudy
Cloudy
 20° /12° 1.2 mm 4
12 Sept. Overcast
Overcast
 17° /11° 0.9 mm 4
13 Sept. Overcast
Overcast
 18° /11° 1.4 mm 4
14 Sept. Patchy rain possible
Patchy rain possible
 17° /11° 1.3 mm 0.5
15 Sept. Patchy rain possible
Patchy rain possible
 19° /14° 0.4 mm 0.9
16 Sept. Patchy rain possible
Patchy rain possible
 18° /13° 0.1 mm 0.7
17 Sept. Patchy rain possible
Patchy rain possible
 17° /13° 2 mm 0.1
18 Sept. Patchy rain possible
Patchy rain possible
 19° /18° 0.9 mm 0.4
19 Sept. Sunny
Sunny
 22° /13° 0 mm 5
20 Sept. Sunny
Sunny
 26° /16° 0 mm 6
21 Sept. Patchy rain possible
Patchy rain possible
 21° /15° 0.2 mm 4
22 Sept. Overcast
Overcast
 19° /14° 0.1 mm 4
23 Sept. Sunny
Sunny
 19° /12° 0 mm 5
24 Sept. Sunny
Sunny
 19° /11° 0 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
 20° /14° 0.3 mm 4
26 Sept. Partly cloudy
Partly cloudy
 19° /15° 0 mm 5
27 Sept. Moderate rain
Moderate rain
 13° /12° 8.8 mm 3
28 Sept. Overcast
Overcast
 17° /9° 0.1 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 16° /11° 1 mm 4
30 Sept. Cloudy
Cloudy
 17° /11° 9.8 mm 4
Next
Important Notice
Our weather forecast for City of Westminster in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the City of Westminster forecast closer to your planned date for the most up-to-date weather information.
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City of Westminster in September - FAQ

What are the expected maximum and minimum temperatures in City of Westminster during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in City of Westminster during September?
Moderate rainfall is anticipated in City of Westminster during September, with a total of 93.2 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in City of Westminster during September?
The average wind speed in City of Westminster during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in City of Westminster

Explore the daily rainfall trends and prepare for City of Westminsters September weather 💧

UV exposure in City of Westminster during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is City of Westminster?

Get accurate weather forecasts for City of Westminster, located at latitude 51.498 and longitude -0.136. Stay updated with localized weather information tailored for City of Westminster.

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