Harlow
September
Weather in Harlow for September 2026
Your guide to Harlow weather in September - trends and predictions
In general, the average temperature in Harlow at the beginning of September is 22.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °C by the end of September.
Harlow in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 81.2 mm.
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Temperatures
Rain 🌧️
More
12
Dry days
18
Rainy days
0
Snow days
20°/12°
Temperatures
21 km/h
Avg max wind
73 %
Avg humidity
Harlow Weather September
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Temperatures trend during September in Harlow
See the weather trend as well as the moving average line
September weather in Harlow day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 23° /13° | 3.7 mm | 5 | |
| 2 Sept. | Patchy rain possible | 21° /14° | 1.6 mm | 5 | |
| 3 Sept. | Light rain shower | 22° /13° | 3.1 mm | 5 | |
| 4 Sept. |  Sunny | 21° /12° | 4.9 mm | 5 | |
| 5 Sept. |  Overcast | 22° /13° | 1.8 mm | 5 | |
| 6 Sept. | Sunny | 26° /15° | 0.5 mm | 6 | |
| 7 Sept. | Sunny | 25° /15° | 2.2 mm | 6 | |
| 8 Sept. |  Partly cloudy | 23° /15° | 3.6 mm | 5 | |
| 9 Sept. | Sunny | 23° /13° | 0 mm | 6 | |
| 10 Sept. | Partly cloudy | 23° /13° | 1.7 mm | 5 | |
| 11 Sept. | Overcast | 20° /11° | 1 mm | 4 | |
| 12 Sept. | Patchy rain possible | 17° /10° | 0.4 mm | 4 | |
| 13 Sept. | Overcast | 17° /9° | 0.7 mm | 4 | |
| 14 Sept. |  Cloudy | 19° /9° | 0.9 mm | 5 | |
| 15 Sept. | Partly cloudy | 20° /11° | 0 mm | 5 | |
| 16 Sept. | Partly cloudy | 21° /11° | 0 mm | 5 | |
| 17 Sept. |  Light drizzle | 19° /12° | 1 mm | 5 | |
| 18 Sept. |  Patchy light rain with thunder | 22° /13° | 3.3 mm | 5 | |
| 19 Sept. | Light rain | 22° /13° | 0.8 mm | 6 | |
| 20 Sept. | Light rain shower | 21° /12° | 7.8 mm | 5 | |
| 21 Sept. | Light rain shower | 18° /10° | 2.1 mm | 4 | |
| 22 Sept. | Light drizzle | 17° /10° | 7 mm | 4 | |
| 23 Sept. | Patchy rain possible | 17° /9° | 0.4 mm | 4 | |
| 24 Sept. | Patchy rain possible | 18° /10° | 1 mm | 4 | |
| 25 Sept. | Overcast | 18° /11° | 0.8 mm | 4 | |
| 26 Sept. |  Thundery outbreaks possible | 18° /10° | 3.3 mm | 4 | |
| 27 Sept. |  Mist | 17° /9° | 2.9 mm | 4 | |
| 28 Sept. | Cloudy | 16° /8° | 0 mm | 4 | |
| 29 Sept. | Light rain shower | 17° /8° | 0.9 mm | 4 | |
| 30 Sept. | Partly cloudy | 17° /10° | 7.5 mm | 5 | |
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Important Notice
Our weather forecast for Harlow 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 Harlow forecast closer to your planned date for the most up-to-date weather information.
Change Month
Harlow in September - FAQ
What are the expected maximum and minimum temperatures in Harlow 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 Harlow during September?
Moderate rainfall is anticipated in Harlow during September, with a total of 81.2 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Harlow during September?
The average wind speed in Harlow during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Harlow
Explore the daily rainfall trends and prepare for Harlows September weather 💧
UV exposure in Harlow during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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