Sefton (Southport)
September
Weather in Sefton for September 2026
Your guide to Sefton weather in September - trends and predictions
In general, the average temperature in Sefton at the beginning of September is 19.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.9 °C by the end of September.
Sefton experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 97.9 mm.
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Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
17°/12°
Temperatures
25 km/h
Avg max wind
78 %
Avg humidity
Sefton Weather September
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Temperatures trend during September in Sefton
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September weather in Sefton day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 18° /13° | 4.4 mm | 4 | |
| 2 Sept. | Patchy rain possible | 19° /13° | 1.8 mm | 4 | |
| 3 Sept. |  Partly cloudy | 18° /13° | 3.4 mm | 4 | |
| 4 Sept. | Patchy rain possible | 19° /12° | 0.3 mm | 4 | |
| 5 Sept. |  Sunny | 20° /13° | 0.2 mm | 5 | |
| 6 Sept. | Partly cloudy | 23° /14° | 0 mm | 6 | |
| 7 Sept. | Light rain shower | 22° /15° | 2.1 mm | 5 | |
| 8 Sept. | Patchy rain possible | 20° /14° | 1.9 mm | 4 | |
| 9 Sept. |  Overcast | 19° /13° | 0.6 mm | 4 | |
| 10 Sept. | Light rain shower | 19° /13° | 5.7 mm | 4 | |
| 11 Sept. | Light rain shower | 15° /12° | 8.8 mm | 4 | |
| 12 Sept. | Light rain shower | 14° /11° | 3.9 mm | 4 | |
| 13 Sept. |  Cloudy | 15° /9° | 6.3 mm | 3 | |
| 14 Sept. | Overcast | 16° /11° | 2.5 mm | 4 | |
| 15 Sept. | Partly cloudy | 16° /13° | 4.3 mm | 4 | |
| 16 Sept. | Patchy rain possible | 16° /12° | 1.9 mm | 4 | |
| 17 Sept. |  Moderate rain | 19° /11° | 7.3 mm | 4 | |
| 18 Sept. | Light rain shower | 18° /11° | 3.8 mm | 4 | |
| 19 Sept. | Light rain shower | 19° /12° | 4.7 mm | 5 | |
| 20 Sept. | Light rain shower | 18° /11° | 9.5 mm | 4 | |
| 21 Sept. | Patchy rain possible | 16° /10° | 1.2 mm | 4 | |
| 22 Sept. | Light rain shower | 15° /10° | 3.1 mm | 4 | |
| 23 Sept. | Patchy rain possible | 14° /10° | 1.7 mm | 3 | |
| 24 Sept. |  Light drizzle | 16° /10° | 2.8 mm | 4 | |
| 25 Sept. | Patchy light drizzle | 16° /10° | 0.4 mm | 4 | |
| 26 Sept. | Light drizzle | 15° /9° | 9.2 mm | 4 | |
| 27 Sept. | Light rain shower | 14° /10° | 3.7 mm | 3 | |
| 28 Sept. | Patchy rain possible | 14° /10° | 1.3 mm | 3 | |
| 29 Sept. | Patchy rain possible | 14° /9° | 1.6 mm | 3 | |
| 30 Sept. | Light rain | 15° /10° | 8.3 mm | 4 | |
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Important Notice
Our weather forecast for Sefton 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 Sefton forecast closer to your planned date for the most up-to-date weather information.
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Sefton in September - FAQ
What are the expected maximum and minimum temperatures in Sefton during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sefton during September?
Moderate rainfall is anticipated in Sefton during September, with a total of 97.9 mm spread over approximately 21 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sefton during September?
The average wind speed in Sefton during September is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Sefton
Explore the daily rainfall trends and prepare for Seftons September weather 💧
Typically, Sefton has 21 rainy days in September with a total of 97.9 mm of rainfall.
UV exposure in Sefton during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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