County of Flintshire
September
Weather in County of Flintshire for September 2025
Your guide to County of Flintshire weather in September - trends and predictions
In general, the average temperature in County of Flintshire at the beginning of September is 20.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.1 °C by the end of September.
Expect significant rainfall in County of Flintshire during September, with an average of 20 rainy days.
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10
Dry days
20
Rainy days
0
Snow days
19°/11°
Temperatures
18 km/h
Avg max wind
81 %
Avg humidity
County of Flintshire in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  18° | 2  20° | 3  20° | 4  20° | 5 20° | 6  25° | 7 23° |
| 8  22° | 9 20° | 10 18° | 11 15° | 12  13° | 13 16° | 14 17° |
| 15  18° | 16 17° | 17  19° | 18 17° | 19 18° | 20 18° | 21 18° |
| 22 14° | 23 14° | 24 16° | 25 15° | 26 14° | 27 14° | 28 13° |
| 29 14° | 30 13° |
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Temperatures trend during September in County of Flintshire
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 drizzle | 18° /11° | 1.8 mm | 4 | |
| 2 Sept. | Light rain shower | 20° /11° | 2.6 mm | 5 | |
| 3 Sept. | Overcast | 20° /12° | 0.1 mm | 5 | |
| 4 Sept. | Sunny | 20° /10° | 0.3 mm | 6 | |
| 5 Sept. | Sunny | 20° /11° | 3.2 mm | 6 | |
| 6 Sept. | Partly cloudy | 25° /13° | 0 mm | 7 | |
| 7 Sept. | Light rain shower | 23° /15° | 1 mm | 6 | |
| 8 Sept. | Moderate or heavy rain shower | 22° /15° | 8.3 mm | 5 | |
| 9 Sept. | Patchy rain possible | 20° /13° | 4.5 mm | 5 | |
| 10 Sept. | Light rain shower | 18° /12° | 4.4 mm | 4 | |
| 11 Sept. | Light rain shower | 15° /10° | 5 mm | 4 | |
| 12 Sept. | Cloudy | 13° /8° | 9.3 mm | 4 | |
| 13 Sept. | Overcast | 16° /6° | 0 mm | 4 | |
| 14 Sept. | Partly cloudy | 17° /10° | 0 mm | 5 | |
| 15 Sept. | Mist | 18° /11° | 0.7 mm | 5 | |
| 16 Sept. | Overcast | 17° /9° | 0.8 mm | 5 | |
| 17 Sept. | Moderate rain | 19° /10° | 7.9 mm | 5 | |
| 18 Sept. | Light rain shower | 17° /9° | 2.1 mm | 5 | |
| 19 Sept. | Light rain | 18° /9° | 3.2 mm | 5 | |
| 20 Sept. | Light rain shower | 18° /9° | 4.2 mm | 4 | |
| 21 Sept. | Patchy rain possible | 18° /8° | 5.3 mm | 5 | |
| 22 Sept. | Light rain shower | 14° /9° | 5.9 mm | 4 | |
| 23 Sept. | Patchy rain possible | 14° /9° | 3.5 mm | 3 | |
| 24 Sept. | Light drizzle | 16° /10° | 4.9 mm | 4 | |
| 25 Sept. | Patchy rain possible | 15° /8° | 3.4 mm | 4 | |
| 26 Sept. | Patchy rain possible | 14° /9° | 11.2 mm | 4 | |
| 27 Sept. | Light rain shower | 14° /8° | 3.3 mm | 4 | |
| 28 Sept. | Light rain shower | 13° /8° | 1.5 mm | 4 | |
| 29 Sept. | Sunny | 14° /7° | 4.4 mm | 4 | |
| 30 Sept. | Light rain | 13° /8° | 14.7 mm | 4 | |
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Important Notice
Our weather forecast for County of Flintshire 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 County of Flintshire forecast closer to your planned date for the most up-to-date weather information.
County of Flintshire in September - FAQ
What are the expected maximum and minimum temperatures in County of Flintshire during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in County of Flintshire during September?
Moderate rainfall is anticipated in County of Flintshire during September, with a total of 92.9 mm spread over approximately 20 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in County of Flintshire during September?
The average wind speed in County of Flintshire during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
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Where is County of Flintshire?Get accurate weather forecasts for County of Flintshire, located at latitude 53.167 and longitude -3.083. Stay updated with localized weather information tailored for County of Flintshire.
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