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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 sees moderate rainfall in September, averaging 9 rainy days.

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Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/15°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Southend-on-Sea in September average weather

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Temperatures trend during September in Southend-on-Sea

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. Overcast
Overcast
20° /16° 4.5 mm 5
2 Sept. Light rain shower
Light rain shower
21° /16° 0.3 mm 5
3 Sept. Overcast
Overcast
20° /15° 0.9 mm 5
4 Sept. Sunny
Sunny
19° /15° 2.3 mm 5
5 Sept. Overcast
Overcast
20° /16° 2.9 mm 5
6 Sept. Sunny
Sunny
22° /17° 1.2 mm 6
7 Sept. Partly cloudy
Partly cloudy
21° /16° 6.9 mm 6
8 Sept. Overcast
Overcast
22° /16° 2.3 mm 5
9 Sept. Sunny
Sunny
20° /15° 0.2 mm 5
10 Sept. Partly cloudy
Partly cloudy
23° /15° 2 mm 6
11 Sept. Cloudy
Cloudy
19° /13° 0.2 mm 4
12 Sept. Overcast
Overcast
17° /12° 0.4 mm 4
13 Sept. Overcast
Overcast
17° /11° 0 mm 5
14 Sept. Partly cloudy
Partly cloudy
19° /11° 0 mm 6
15 Sept. Sunny
Sunny
21° /13° 0 mm 6
16 Sept. Sunny
Sunny
20° /14° 0 mm 6
17 Sept. Patchy rain possible
Patchy rain possible
19° /14° 0.1 mm 4
18 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
20° /14° 2.1 mm 5
19 Sept. Light drizzle
Light drizzle
19° /15° 1.3 mm 5
20 Sept. Moderate rain
Moderate rain
19° /15° 12.4 mm 4
21 Sept. Patchy light drizzle
Patchy light drizzle
19° /14° 4.4 mm 4
22 Sept. Light rain shower
Light rain shower
18° /14° 12.9 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
18° /12° 1.6 mm 4
24 Sept. Overcast
Overcast
18° /13° 0.5 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
19° /13° 7.1 mm 5
26 Sept. Light rain
Light rain
19° /13° 8.7 mm 5
27 Sept. Cloudy
Cloudy
17° /11° 3.9 mm 4
28 Sept. Overcast
Overcast
16° /9° 0 mm 4
29 Sept. Light rain
Light rain
16° /12° 1.3 mm 4
30 Sept. Cloudy
Cloudy
17° /11° 10.2 mm 4
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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.

Southend-on-Sea in September - FAQ

What are the expected maximum and minimum temperatures in Southend-on-Sea during September?
During September, expect a variety of temperatures with highs around 20° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Southend-on-Sea during September?
In September, Southend-on-Sea can expect light to moderate rainfall, totaling 47.7 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Southend-on-Sea during September?
The average wind speed in Southend-on-Sea during September is 23 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 ☀️

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Location coordinates 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.

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