Southend-on-Sea
September
Weather in Southend-on-Sea for September 2025
Your guide to Southend-on-Sea weather in September - trends and predictions
In general, the average temperature in Southend-on-Sea at the beginning of September is 20.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 17.4 °C by the end of September.
Southend-on-Sea in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 90.7 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
11
Dry days
19
Rainy days
0
Snow days
19°/14°
Temperatures
24 km/h
Avg max wind
75 %
Avg humidity
Southend-on-Sea Weather September
Move between months or click on a day
Temperatures trend during September in Southend-on-Sea
See the weather trend as well as the moving average line
September weather in Southend-on-Sea day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 20° /16° | 4.5 mm | 5 | |
| 2 Sept. |  Light rain shower | 21° /16° | 0.3 mm | 5 | |
| 3 Sept. | Overcast | 20° /15° | 0.9 mm | 5 | |
| 4 Sept. |  Sunny | 19° /15° | 2.3 mm | 5 | |
| 5 Sept. | Overcast | 20° /16° | 2.9 mm | 5 | |
| 6 Sept. | Sunny | 22° /17° | 1.2 mm | 6 | |
| 7 Sept. |  Partly cloudy | 21° /16° | 6.9 mm | 6 | |
| 8 Sept. | Overcast | 22° /16° | 2.3 mm | 5 | |
| 9 Sept. | Sunny | 20° /15° | 0.2 mm | 5 | |
| 10 Sept. | Partly cloudy | 23° /15° | 2 mm | 6 | |
| 11 Sept. |  Cloudy | 19° /13° | 0.2 mm | 4 | |
| 12 Sept. | Overcast | 17° /12° | 0.4 mm | 4 | |
| 13 Sept. | Overcast | 17° /11° | 0 mm | 5 | |
| 14 Sept. | Partly cloudy | 19° /11° | 0 mm | 6 | |
| 15 Sept. | Sunny | 21° /13° | 0 mm | 6 | |
| 16 Sept. | Sunny | 20° /14° | 0 mm | 6 | |
| 17 Sept. | Patchy rain possible | 19° /14° | 0.1 mm | 4 | |
| 18 Sept. |  Moderate or heavy rain with thunder | 20° /14° | 2.1 mm | 5 | |
| 19 Sept. |  Light drizzle | 19° /15° | 1.3 mm | 5 | |
| 20 Sept. |  Moderate rain | 19° /15° | 12.4 mm | 4 | |
| 21 Sept. | Patchy light drizzle | 19° /14° | 4.4 mm | 4 | |
| 22 Sept. | Light rain shower | 18° /14° | 12.9 mm | 4 | |
| 23 Sept. | Patchy rain possible | 18° /12° | 1.6 mm | 4 | |
| 24 Sept. | Overcast | 18° /13° | 0.5 mm | 4 | |
| 25 Sept. | Patchy rain possible | 19° /13° | 7.1 mm | 5 | |
| 26 Sept. | Light rain | 19° /13° | 8.7 mm | 5 | |
| 27 Sept. | Cloudy | 17° /11° | 3.9 mm | 4 | |
| 28 Sept. | Overcast | 16° /9° | 0 mm | 4 | |
| 29 Sept. | Light rain | 16° /12° | 1.3 mm | 4 | |
| 30 Sept. | Cloudy | 17° /11° | 10.2 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Southend-on-Sea 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 Southend-on-Sea forecast closer to your planned date for the most up-to-date weather information.
Change Month
Southend-on-Sea in September - FAQ
What are the expected maximum and minimum temperatures in Southend-on-Sea during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Southend-on-Sea during September?
Moderate rainfall is anticipated in Southend-on-Sea during September, with a total of 90.7 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Southend-on-Sea during September?
The average wind speed in Southend-on-Sea during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Southend-on-Sea
Explore the daily rainfall trends and prepare for Southend-on-Seas September weather 💧
UV exposure in Southend-on-Sea during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Southend-on-Sea weather pages
You are here
Where is Southend-on-Sea?Get accurate weather forecasts for Southend-on-Sea, located at latitude 51.538 and longitude 0.714. Stay updated with localized weather information tailored for Southend-on-Sea.
Found a mistake?
We appreciate your attention to details. Tell us here.