Hemel Hempstead
September
Weather in Hemel Hempstead for September 2026
Your guide to Hemel Hempstead weather in September - trends and predictions
Until now, September 2026 in Hemel Hempstead is slightly cooler than the historical average by 0.6 °C.
The forecast for the next days in Hemel Hempstead predicts temperatures to be around 23 °C, close to the historical average.
In general, the average temperature in Hemel Hempstead at the beginning of September is 22.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 23 °C by the end of September.
Hemel Hempstead experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 69 mm.
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Temperatures
Rain 🌧️
More
6
Dry days
24
Rainy days
0
Snow days
19°/11°
Temperatures
22 km/h
Avg max wind
73 %
Avg humidity
Hemel Hempstead Weather September
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Temperatures trend during September in Hemel Hempstead
See the weather trend as well as the moving average line
September weather in Hemel Hempstead day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 22° /12° | 2.7 mm | 5 | |
| 2 Sept. |  Mist | 21° /13° | 1.6 mm | 4 | |
| 3 Sept. |  Overcast | 22° /14° | 2.3 mm | 4 | |
| 4 Sept. |  Sunny | 20° /12° | 4.8 mm | 4 | |
| 5 Sept. | Sunny | 22° /12° | 2.2 mm | 5 | |
| 6 Sept. | Overcast | 25° /14° | 0.5 mm | 5 | |
| 7 Sept. | Patchy rain possible | 25° /15° | 2.2 mm | 5 | |
| 8 Sept. |  Partly cloudy | 21° /14° | 8.2 mm | 5 | |
| 9 Sept. | Overcast | 21° /12° | 0 mm | 5 | |
| 10 Sept. | Light rain shower | 22° /12° | 1.8 mm | 4 | |
| 11 Sept. |  Cloudy | 19° /11° | 1.2 mm | 4 | |
| 12 Sept. | Mist | 18° /10° | 0.9 mm | 3 | |
| 13 Sept. | Overcast | 18° /11° | 1.9 mm | 3 | |
| 14 Sept. | Cloudy | 19° /11° | 1.2 mm | 4 | |
| 15 Sept. | Patchy rain possible | 21° /11° | 0.1 mm | 4 | |
| 16 Sept. | Patchy rain possible | 20° /10° | 0.1 mm | 4 | |
| 17 Sept. | Light rain shower | 19° /11° | 3.1 mm | 4 | |
| 18 Sept. | Cloudy | 21° /11° | 1.3 mm | 4 | |
| 19 Sept. |  Light rain | 22° /13° | 0.9 mm | 5 | |
| 20 Sept. | Overcast | 19° /13° | 0 mm | 3.4 | |
| 21 Sept. | Sunny | 22° /11° | 0 mm | 3.9 | |
| 22 Sept. | Sunny | 24° /15° | 0 mm | 3.8 | |
| 23 Sept. | Overcast | 22° /11° | 0.1 mm | 3.2 | |
| 24 Sept. | Sunny | 19° /9° | 0 mm | 5 | |
| 25 Sept. | Sunny | 20° /11° | 0 mm | 5 | |
| 26 Sept. | Sunny | 26° /13° | 0 mm | 7 | |
| 27 Sept. | Sunny | 22° /15° | 0 mm | 6 | |
| 28 Sept. | Sunny | 25° /15° | 0 mm | 6 | |
| 29 Sept. | Sunny | 26° /14° | 0 mm | 7 | |
| 30 Sept. | Overcast | 23° /18° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Hemel Hempstead 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 Hemel Hempstead forecast closer to your planned date for the most up-to-date weather information.
Change Month
Hemel Hempstead in September - FAQ
What are the expected maximum and minimum temperatures in Hemel Hempstead 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 Hemel Hempstead during September?
Moderate rainfall is anticipated in Hemel Hempstead during September, with a total of 69 mm spread over approximately 24 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Hemel Hempstead during September?
The average wind speed in Hemel Hempstead during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Hemel Hempstead
Explore the daily rainfall trends and prepare for Hemel Hempsteads September weather 💧
Typically, Hemel Hempstead has 24 rainy days in September with a total of 69 mm of rainfall.
UV exposure in Hemel Hempstead during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Hemel Hempstead?Get accurate weather forecasts for Hemel Hempstead, located at latitude 51.754 and longitude -0.45. Stay updated with localized weather information tailored for Hemel Hempstead.
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