Harrow
September
Weather in Harrow for September 2027
Your guide to Harrow weather in September - trends and predictions
In general, the average temperature in Harrow at the beginning of September is 22.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.3 °C by the end of September.
Harrow experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 63.2 mm.
Is September a good time to visit Harrow? check out the best time to travel to Harrow page.
✨ Is September a good time to visit Harrow? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
20°/13°
Temperatures
18 km/h
Avg max wind
69 %
Avg humidity
Harrow Weather September
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Temperatures trend during September in Harrow
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September weather in Harrow day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain | 22° /14° | 4 mm | 5 | |
| 2 Sept. |  Patchy rain possible | 21° /15° | 1.6 mm | 4 | |
| 3 Sept. | Patchy rain possible | 22° /15° | 2.1 mm | 4 | |
| 4 Sept. | Light rain | 21° /14° | 4.2 mm | 4 | |
| 5 Sept. | Light rain | 22° /14° | 2.5 mm | 5 | |
| 6 Sept. | Patchy rain possible | 25° /16° | 1.2 mm | 5 | |
| 7 Sept. | Patchy rain possible | 25° /16° | 1.5 mm | 5 | |
| 8 Sept. | Light rain | 21° /15° | 9.5 mm | 5 | |
| 9 Sept. |  Overcast | 21° /14° | 0 mm | 5 | |
| 10 Sept. | Patchy rain possible | 22° /14° | 1.8 mm | 4 | |
| 11 Sept. | Patchy light drizzle | 20° /13° | 1.3 mm | 4 | |
| 12 Sept. | Patchy rain possible | 18° /11° | 1 mm | 3 | |
| 13 Sept. | Light rain | 18° /12° | 2.9 mm | 4 | |
| 14 Sept. |  Partly cloudy | 20° /12° | 0.8 mm | 4 | |
| 15 Sept. | Patchy rain possible | 21° /13° | 0.1 mm | 4.4 | |
| 16 Sept. | Partly cloudy | 20° /13° | 0.1 mm | 4.3 | |
| 17 Sept. | Light rain | 20° /13° | 2.5 mm | 4 | |
| 18 Sept. | Patchy rain possible | 21° /13° | 1.8 mm | 4 | |
| 19 Sept. | Light rain | 21° /14° | 0.8 mm | 4.1 | |
| 20 Sept. | Light rain | 21° /13° | 4.8 mm | 4 | |
| 21 Sept. | Light rain shower | 19° /11° | 1.4 mm | 3.9 | |
| 22 Sept. | Light rain | 18° /12° | 4.3 mm | 3.8 | |
| 23 Sept. | Overcast | 18° /11° | 0.1 mm | 3.7 | |
| 24 Sept. | Patchy rain possible | 19° /11° | 0.7 mm | 3 | |
| 25 Sept. | Overcast | 19° /12° | 0.8 mm | 3.6 | |
| 26 Sept. |  Thundery outbreaks possible | 18° /12° | 2.8 mm | 3 | |
| 27 Sept. | Light rain | 17° /11° | 2.5 mm | 3 | |
| 28 Sept. | Overcast | 17° /10° | 0 mm | 3 | |
| 29 Sept. | Patchy rain possible | 19° /11° | 0.8 mm | 3 | |
| 30 Sept. | Light rain | 19° /12° | 5.3 mm | 3.2 | |
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Important Notice
Our weather forecast for Harrow 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 Harrow forecast closer to your planned date for the most up-to-date weather information.
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Harrow in September - FAQ
What are the expected maximum and minimum temperatures in Harrow during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Harrow during September?
Moderate rainfall is anticipated in Harrow during September, with a total of 63.2 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Harrow during September?
The average wind speed in Harrow during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Harrow
Explore the daily rainfall trends and prepare for Harrows September weather 💧
Typically, Harrow has 10 rainy days in September with a total of 63.2 mm of rainfall.
UV exposure in Harrow during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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