West Sussex (Crawley)
September
Weather in West Sussex for September 2027
Your guide to West Sussex weather in September - trends and predictions
In general, the average temperature in West Sussex at the beginning of September is 22.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.7 °C by the end of September.
The climate of West Sussex in September is notably wet, with an average of 11 rainy days, and a total of 70.1 mm of precipitation.
Is September a good time to visit West Sussex? check out the best time to travel to West Sussex page.
✨ Is September a good time to visit West Sussex? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
19
Dry days
11
Rainy days
0
Snow days
20°/12°
Temperatures
22 km/h
Avg max wind
74 %
Avg humidity
West Sussex Weather September
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Temperatures trend during September in West Sussex
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September weather in West Sussex day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain | 23° /14° | 4.1 mm | 5 | |
| 2 Sept. |  Patchy rain possible | 21° /14° | 1.6 mm | 4 | |
| 3 Sept. | Light rain shower | 23° /14° | 2.4 mm | 4 | |
| 4 Sept. | Light rain | 22° /13° | 3.6 mm | 4 | |
| 5 Sept. | Light rain | 22° /12° | 5.1 mm | 5 | |
| 6 Sept. | Patchy rain possible | 23° /14° | 1.9 mm | 5 | |
| 7 Sept. | Patchy rain possible | 24° /15° | 0.9 mm | 5 | |
| 8 Sept. | Light rain | 21° /14° | 6.5 mm | 5 | |
| 9 Sept. |  Overcast | 21° /12° | 0 mm | 5 | |
| 10 Sept. | Light rain shower | 21° /13° | 2 mm | 4 | |
| 11 Sept. | Patchy rain possible | 19° /11° | 1.2 mm | 4 | |
| 12 Sept. | Patchy rain possible | 18° /10° | 1.3 mm | 4 | |
| 13 Sept. | Light rain | 17° /11° | 3.2 mm | 4 | |
| 14 Sept. |  Partly cloudy | 20° /11° | 0.3 mm | 4 | |
| 15 Sept. | Patchy rain possible | 20° /12° | 0.3 mm | 4.5 | |
| 16 Sept. | Partly cloudy | 20° /11° | 0.1 mm | 4.4 | |
| 17 Sept. | Light drizzle | 20° /12° | 1.2 mm | 4 | |
| 18 Sept. | Light rain | 20° /12° | 4.2 mm | 4 | |
| 19 Sept. | Light rain shower | 21° /14° | 0.5 mm | 4 | |
| 20 Sept. |  Moderate rain | 20° /13° | 9.4 mm | 4 | |
| 21 Sept. | Light rain | 19° /11° | 3 mm | 4 | |
| 22 Sept. | Light rain shower | 19° /11° | 1.3 mm | 3.9 | |
| 23 Sept. | Overcast | 18° /10° | 0.1 mm | 3 | |
| 24 Sept. | Overcast | 18° /10° | 0.8 mm | 3 | |
| 25 Sept. | Patchy rain possible | 19° /11° | 1.9 mm | 3.7 | |
| 26 Sept. |  Thundery outbreaks possible | 17° /11° | 4.9 mm | 3 | |
| 27 Sept. | Patchy rain possible | 17° /10° | 1.9 mm | 3 | |
| 28 Sept. | Patchy rain possible | 17° /9° | 0.1 mm | 3 | |
| 29 Sept. | Patchy rain possible | 18° /10° | 0.9 mm | 3 | |
| 30 Sept. | Light rain | 19° /11° | 5.2 mm | 3.3 | |
| Next | |||||
Important Notice
Our weather forecast for West Sussex 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 West Sussex forecast closer to your planned date for the most up-to-date weather information.
Change Month
West Sussex in September - FAQ
What are the expected maximum and minimum temperatures in West Sussex 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 West Sussex during September?
Moderate rainfall is anticipated in West Sussex during September, with a total of 70.1 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in West Sussex during September?
The average wind speed in West Sussex during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in West Sussex
Explore the daily rainfall trends and prepare for West Sussexs September weather 💧
Typically, West Sussex has 11 rainy days in September with a total of 70.1 mm of rainfall.
UV exposure in West Sussex during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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