Watford
September
Weather in Watford for September 2025
Your guide to Watford weather in September - trends and predictions
In general, the average temperature in Watford at the beginning of September is 23.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.3 °C by the end of September.
Watford in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 84.3 mm.
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Temperatures
Rain 🌧️
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11
Dry days
19
Rainy days
0
Snow days
20°/12°
Temperatures
20 km/h
Avg max wind
75 %
Avg humidity
Watford in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  22° | 2 23° | 3  21° | 4  22° | 5 22° | 6 26° | 7 26° |
| 8  23° | 9 24° | 10 24° | 11 18° | 12 16° | 13 16° | 14 19° |
| 15 22° | 16 21° | 17  20° | 18 21° | 19  20° | 20 20° | 21 20° |
| 22 17° | 23 17° | 24 17° | 25 18° | 26  18° | 27 15° | 28 15° |
| 29 15° | 30  16° |
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Temperatures trend during September in Watford
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. | Mist | 22° /13° | 7.2 mm | 5 | |
| 2 Sept. | Mist | 23° /14° | 0.4 mm | 5 | |
| 3 Sept. | Overcast | 21° /12° | 0.5 mm | 5 | |
| 4 Sept. | Sunny | 22° /13° | 3.2 mm | 6 | |
| 5 Sept. | Sunny | 22° /14° | 6.1 mm | 6 | |
| 6 Sept. | Overcast | 26° /15° | 1.8 mm | 6 | |
| 7 Sept. | Sunny | 26° /15° | 3.5 mm | 7 | |
| 8 Sept. | Partly cloudy | 23° /16° | 12.4 mm | 6 | |
| 9 Sept. | Sunny | 24° /14° | 0 mm | 6 | |
| 10 Sept. | Partly cloudy | 24° /13° | 1.5 mm | 6 | |
| 11 Sept. | Mist | 18° /10° | 0.8 mm | 4 | |
| 12 Sept. | Mist | 16° /9° | 0.5 mm | 4 | |
| 13 Sept. | Overcast | 16° /9° | 0 mm | 4 | |
| 14 Sept. | Partly cloudy | 19° /9° | 0 mm | 6 | |
| 15 Sept. | Sunny | 22° /10° | 0 mm | 5 | |
| 16 Sept. | Partly cloudy | 21° /11° | 0 mm | 6 | |
| 17 Sept. | Light rain shower | 20° /12° | 3.2 mm | 5 | |
| 18 Sept. | Light rain shower | 21° /11° | 1.9 mm | 5 | |
| 19 Sept. | Light rain | 20° /12° | 1.3 mm | 5 | |
| 20 Sept. | Light rain shower | 20° /12° | 6.5 mm | 5 | |
| 21 Sept. | Light rain shower | 20° /11° | 1.6 mm | 5 | |
| 22 Sept. | Light rain shower | 17° /12° | 8.5 mm | 4 | |
| 23 Sept. | Partly cloudy | 17° /9° | 0.1 mm | 5 | |
| 24 Sept. | Overcast | 17° /11° | 1.8 mm | 4 | |
| 25 Sept. | Overcast | 18° /11° | 2.2 mm | 5 | |
| 26 Sept. | Thundery outbreaks possible | 18° /11° | 3.8 mm | 4 | |
| 27 Sept. | Fog | 15° /9° | 3.9 mm | 4 | |
| 28 Sept. | Overcast | 15° /8° | 0.1 mm | 4 | |
| 29 Sept. | Overcast | 15° /9° | 2.7 mm | 4 | |
| 30 Sept. | Cloudy | 16° /9° | 8.9 mm | 4 | |
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Important Notice
Our weather forecast for Watford 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 Watford forecast closer to your planned date for the most up-to-date weather information.
Watford in September - FAQ
What are the expected maximum and minimum temperatures in Watford during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Watford during September?
Moderate rainfall is anticipated in Watford during September, with a total of 84.3 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Watford during September?
The average wind speed in Watford during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Watford
Explore the daily rainfall trends and prepare for Watfords September weather 💧
UV exposure in Watford during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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