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Weather in Borough of Swindon for September 2025

Your guide to Borough of Swindon weather in September - trends and predictions
  • In general, the average temperature in Borough of Swindon at the beginning of September is 21.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.4 °C by the end of September.

  • The climate of Borough of Swindon in September is notably wet, with an average of 13 rainy days.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/12°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Borough of Swindon in September average weather

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Temperatures trend during September in Borough of Swindon

See the weather trend as well as the moving average line

September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
21° /12° 8.3 mm 5
2 Sept. Overcast
Overcast
21° /13° 0.2 mm 5
3 Sept. Overcast
Overcast
20° /11° 0.3 mm 5
4 Sept. Sunny
Sunny
20° /12° 0.2 mm 6
5 Sept. Sunny
Sunny
21° /12° 14.1 mm 6
6 Sept. Partly cloudy
Partly cloudy
24° /14° 4.2 mm 6
7 Sept. Sunny
Sunny
24° /14° 0.2 mm 6
8 Sept. Partly cloudy
Partly cloudy
23° /15° 15.6 mm 6
9 Sept. Sunny
Sunny
23° /13° 0.3 mm 6
10 Sept. Partly cloudy
Partly cloudy
22° /12° 1.2 mm 6
11 Sept. Light rain shower
Light rain shower
17° /10° 0.9 mm 4
12 Sept. Fog
Fog
15° /7° 0.8 mm 4
13 Sept. Overcast
Overcast
16° /7° 0 mm 4
14 Sept. Overcast
Overcast
18° /9° 0 mm 5
15 Sept. Partly cloudy
Partly cloudy
20° /9° 0 mm 5
16 Sept. Light drizzle
Light drizzle
20° /11° 0.3 mm 5
17 Sept. Light rain shower
Light rain shower
19° /11° 2.7 mm 4
18 Sept. Light drizzle
Light drizzle
19° /10° 0.3 mm 5
19 Sept. Light drizzle
Light drizzle
20° /11° 0.6 mm 5
20 Sept. Light rain shower
Light rain shower
18° /11° 7.3 mm 5
21 Sept. Light rain shower
Light rain shower
19° /10° 2.7 mm 5
22 Sept. Light rain shower
Light rain shower
16° /10° 2.8 mm 4
23 Sept. Cloudy
Cloudy
16° /9° 0.1 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
17° /11° 0.5 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
16° /10° 2.1 mm 4
26 Sept. Patchy light drizzle
Patchy light drizzle
17° /10° 3.6 mm 4
27 Sept. Fog
Fog
14° /8° 4.7 mm 4
28 Sept. Overcast
Overcast
15° /7° 1 mm 4
29 Sept. Partly cloudy
Partly cloudy
14° /8° 5.5 mm 4
30 Sept. Overcast
Overcast
15° /9° 5.5 mm 4
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Important Notice
Our weather forecast for Borough of Swindon 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 Borough of Swindon forecast closer to your planned date for the most up-to-date weather information.

Borough of Swindon in September - FAQ

What are the expected maximum and minimum temperatures in Borough of Swindon during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Borough of Swindon during September?
In September, Borough of Swindon can expect light to moderate rainfall, totaling 37.3 mm across approximately 13 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Borough of Swindon during September?
The average wind speed in Borough of Swindon during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Borough of Swindon

Explore the daily rainfall trends and prepare for Borough of Swindons September weather 💧

UV exposure in Borough of Swindon during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Borough of Swindon?

Get accurate weather forecasts for Borough of Swindon, located at latitude 51.558 and longitude -1.781. Stay updated with localized weather information tailored for Borough of Swindon.

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