Carshalton
September
Weather in Carshalton for September 2025
Your guide to Carshalton weather in September - trends and predictions
In general, the average temperature in Carshalton at the beginning of September is 20.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.6 °C by the end of September.
Carshalton in September brings notable rainfall, with an average of 20 rainy days and a total precipitation of 138.1 mm.
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Temperatures
Rain 🌧️
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10
Dry days
20
Rainy days
0
Snow days
18°/11°
Temperatures
19 km/h
Avg max wind
76 %
Avg humidity
Carshalton in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2 22° | 3  23° | 4 19° | 5 16° | 6 18° | 7 22° |
| 8 18° | 9 17° | 10 17° | 11 13° | 12 14° | 13  15° | 14  17° |
| 15  20° | 16 19° | 17 19° | 18 22° | 19 23° | 20  22° | 21 23° |
| 22 19° | 23 20° | 24 17° | 25 16° | 26 16° | 27 12° | 28 13° |
| 29 13° | 30 15° |
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Temperatures trend during September in Carshalton
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. | Light rain shower | 26° /16° | 13.7 mm | 6 | |
| 2 Sept. | Light rain shower | 22° /17° | 0.3 mm | 5 | |
| 3 Sept. | Patchy light drizzle | 23° /14° | 1.6 mm | 5 | |
| 4 Sept. | Light rain shower | 19° /12° | 9.4 mm | 4 | |
| 5 Sept. | Light rain shower | 16° /13° | 11.8 mm | 4 | |
| 6 Sept. | Light rain shower | 18° /14° | 6.6 mm | 4 | |
| 7 Sept. | Patchy rain possible | 22° /13° | 7.6 mm | 5 | |
| 8 Sept. | Light rain shower | 18° /14° | 16.3 mm | 4 | |
| 9 Sept. | Patchy rain possible | 17° /11° | 0 mm | 4 | |
| 10 Sept. | Light rain | 17° /10° | 3.9 mm | 4 | |
| 11 Sept. | Light drizzle | 13° /8° | 0.9 mm | 3 | |
| 12 Sept. | Light rain shower | 14° /6° | 0.9 mm | 3 | |
| 13 Sept. | Cloudy | 15° /6° | 0 mm | 4 | |
| 14 Sept. | Sunny | 17° /8° | 0 mm | 5 | |
| 15 Sept. | Partly cloudy | 20° /9° | 0 mm | 6 | |
| 16 Sept. | Partly cloudy | 19° /11° | 0 mm | 5 | |
| 17 Sept. | Partly cloudy | 19° /10° | 0 mm | 5 | |
| 18 Sept. | Cloudy | 22° /13° | 0 mm | 5 | |
| 19 Sept. | Partly cloudy | 23° /14° | 0 mm | 6 | |
| 20 Sept. | Thundery outbreaks possible | 22° /15° | 0 mm | 5 | |
| 21 Sept. | Thundery outbreaks possible | 23° /14° | 3 mm | 5 | |
| 22 Sept. | Light rain shower | 19° /15° | 9.9 mm | 4 | |
| 23 Sept. | Patchy rain possible | 20° /13° | 0.4 mm | 4 | |
| 24 Sept. | Patchy rain possible | 17° /12° | 2.4 mm | 4 | |
| 25 Sept. | Light rain shower | 16° /11° | 5.2 mm | 4 | |
| 26 Sept. | Light rain shower | 16° /12° | 17.2 mm | 4 | |
| 27 Sept. | Light rain shower | 12° /7° | 7.5 mm | 3 | |
| 28 Sept. | Cloudy | 13° /5° | 0 mm | 3 | |
| 29 Sept. | Patchy rain possible | 13° /8° | 0.8 mm | 3 | |
| 30 Sept. | Light rain shower | 15° /10° | 18.5 mm | 4 | |
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Important Notice
Our weather forecast for Carshalton 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 Carshalton forecast closer to your planned date for the most up-to-date weather information.
Carshalton in September - FAQ
What are the expected maximum and minimum temperatures in Carshalton during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Carshalton during September?
Significant rainfall exceeding 138.1 mm is expected in Carshalton during September, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Carshalton during September?
The average wind speed in Carshalton during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Carshalton
Explore the daily rainfall trends and prepare for Carshaltons September weather 💧
UV exposure in Carshalton during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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