Borough of Halton (Runcorn)
September
Weather in Borough of Halton for September 2025
Your guide to Borough of Halton weather in September - trends and predictions
Until now, September 2025 in Borough of Halton is slightly cooler than the historical average by -1.5 °C.
The forecast for the next days in Borough of Halton predicts temperatures to be around 15 °C, close to the historical average.
In general, the average temperature in Borough of Halton at the beginning of September is 21.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.1 °C by the end of September.
Borough of Halton experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 101.1 mm.
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Temperatures
Rain 🌧️
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7
Dry days
23
Rainy days
0
Snow days
18°/11°
Temperatures
18 km/h
Avg max wind
77 %
Avg humidity
Borough of Halton Weather September
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Temperatures trend during September in Borough of Halton
See the weather trend as well as the moving average line
September weather in Borough of Halton day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 19° /12° | 2.8 mm | 4 | |
| 2 Sept. | Patchy rain possible | 21° /11° | 2.5 mm | 5 | |
| 3 Sept. |  Cloudy | 20° /12° | 3.1 mm | 4 | |
| 4 Sept. |  Sunny | 21° /11° | 0.6 mm | 5 | |
| 5 Sept. | Sunny | 21° /11° | 0.7 mm | 5 | |
| 6 Sept. |  Overcast | 25° /13° | 0 mm | 6 | |
| 7 Sept. | Light rain shower | 24° /14° | 1.5 mm | 5 | |
| 8 Sept. | Patchy rain possible | 23° /13° | 3 mm | 5 | |
| 9 Sept. | Overcast | 21° /12° | 2.2 mm | 5 | |
| 10 Sept. | Light rain shower | 20° /12° | 3.6 mm | 5 | |
| 11 Sept. | Light rain shower | 16° /10° | 4.3 mm | 4 | |
| 12 Sept. | Light rain shower | 16° /9° | 3.4 mm | 4 | |
| 13 Sept. | Overcast | 16° /7° | 3.2 mm | 4 | |
| 14 Sept. | Cloudy | 17° /10° | 3.6 mm | 4 | |
| 15 Sept. | Light rain shower | 18° /12° | 1.8 mm | 4 | |
| 16 Sept. | Overcast | 17° /10° | 0.9 mm | 4 | |
| 17 Sept. |  Moderate rain | 20° /11° | 6.1 mm | 5 | |
| 18 Sept. | Patchy rain possible | 20° /13° | 1.1 mm | 0.3 | |
| 19 Sept. | Patchy rain possible | 20° /14° | 1.2 mm | 0.3 | |
| 20 Sept. | Moderate rain | 13° /11° | 5.8 mm | 0.4 | |
| 21 Sept. | Patchy rain possible | 13° /11° | 4.7 mm | 0.1 | |
| 22 Sept. | Patchy rain possible | 15° /10° | 0.3 mm | 0.2 | |
| 23 Sept. | Patchy rain possible | 14° /6° | 0.1 mm | 2 | |
| 24 Sept. | Sunny | 15° /6° | 0 mm | 3 | |
| 25 Sept. |  Partly cloudy | 15° /7° | 0 mm | 4 | |
| 26 Sept. | Partly cloudy | 16° /8° | 0 mm | 4 | |
| 27 Sept. | Overcast | 15° /10° | 0 mm | 3 | |
| 28 Sept. | Patchy rain possible | 15° /10° | 0.1 mm | 3 | |
| 29 Sept. | Patchy rain possible | 11° /9° | 1.2 mm | 3 | |
| 30 Sept. | Patchy rain possible | 12° /9° | 0.9 mm | 3 | |
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Important Notice
Our weather forecast for Borough of Halton 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 Halton forecast closer to your planned date for the most up-to-date weather information.
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Borough of Halton in September - FAQ
What are the expected maximum and minimum temperatures in Borough of Halton 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 Borough of Halton during September?
Significant rainfall exceeding 101.1 mm is expected in Borough of Halton during September, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Borough of Halton during September?
The average wind speed in Borough of Halton during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Borough of Halton
Explore the daily rainfall trends and prepare for Borough of Haltons September weather 💧
UV exposure in Borough of Halton during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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