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Weather in Colchester for September 2026

Your guide to Colchester weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Colchester has been nearly identical to the historical average, with a temperature of 21.6 °C (showing only a slight deviation of 0.1 °C).

  • Expect cooler weather in the next days in Colchester with the forecast suggesting a temperature of 20.1 °C, lower than the historical average.

  • In general, the average temperature in Colchester at the beginning of September is 22.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.6 °C by the end of September.

    • Rain 🌧️

  • Colchester in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 61.4 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
12
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/13°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Colchester Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
22°
2
Cloudy
22°
3
Overcast
23°
4
Light rain shower
20°
5
Partly cloudy
22°
6
Overcast
24°
7
Patchy rain possible
24°
8
Overcast
21°
9
Sunny
21°
10
Partly cloudy
22°
11
Cloudy
20°
12
Overcast
19°
13
Overcast
19°
14
Patchy rain possible
25°
15
Sunny
23°
16
Sunny
18°
17
Overcast
18°
18
Overcast
18°
19
Overcast
20°
20
Sunny
22°
21
Sunny
23°
22
Overcast
17°
23
Cloudy
19°
24
Sunny
21°
25
Overcast
17°
26
Sunny
19°
27
Sunny
22°
28
Partly cloudy
17°
29
Light rain shower
17°
30
Partly cloudy
17°

Temperatures trend during September in Colchester

See the weather trend as well as the moving average line

September weather in Colchester day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Cloudy
Cloudy
 22° /13° 1.5 mm 5
2 Sept. Cloudy
Cloudy
 22° /14° 0.7 mm 4
3 Sept. Overcast
Overcast
 23° /15° 1.6 mm 4
4 Sept. Light rain shower
Light rain shower
 20° /14° 1.5 mm 4
5 Sept. Partly cloudy
Partly cloudy
 22° /13° 0.9 mm 5
6 Sept. Overcast
Overcast
 24° /15° 0.7 mm 5
7 Sept. Patchy rain possible
Patchy rain possible
 24° /16° 2.5 mm 5
8 Sept. Overcast
Overcast
 21° /14° 4.7 mm 4
9 Sept. Sunny
Sunny
 21° /13° 0.2 mm 5
10 Sept. Partly cloudy
Partly cloudy
 22° /13° 0.8 mm 4
11 Sept. Cloudy
Cloudy
 20° /12° 0.9 mm 4
12 Sept. Overcast
Overcast
 19° /11° 0.9 mm 4
13 Sept. Overcast
Overcast
 19° /12° 1.9 mm 4
14 Sept. Patchy rain possible
Patchy rain possible
 25° /16° 0.3 mm 4.3
15 Sept. Sunny
Sunny
 23° /14° 0.5 mm 3.7
16 Sept. Sunny
Sunny
 18° /11° 0.1 mm 2.7
17 Sept. Overcast
Overcast
 18° /12° 1.3 mm 4
18 Sept. Overcast
Overcast
 18° /9° 0 mm 5
19 Sept. Overcast
Overcast
 20° /13° 0 mm 5
20 Sept. Sunny
Sunny
 22° /11° 0 mm 6
21 Sept. Sunny
Sunny
 23° /12° 0 mm 6
22 Sept. Overcast
Overcast
 17° /8° 0 mm 5
23 Sept. Cloudy
Cloudy
 19° /9° 0 mm 5
24 Sept. Sunny
Sunny
 21° /8° 0 mm 6
25 Sept. Overcast
Overcast
 17° /12° 0 mm 5
26 Sept. Sunny
Sunny
 19° /11° 0 mm 5
27 Sept. Sunny
Sunny
 22° /11° 0 mm 6
28 Sept. Partly cloudy
Partly cloudy
 17° /9° 0 mm 5
29 Sept. Light rain shower
Light rain shower
 17° /10° 0.6 mm 4
30 Sept. Partly cloudy
Partly cloudy
 17° /10° 9.3 mm 5
Next
Important Notice
Our weather forecast for Colchester 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 Colchester forecast closer to your planned date for the most up-to-date weather information.
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Colchester in September - FAQ

What are the expected maximum and minimum temperatures in Colchester during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Colchester during September?
Moderate rainfall is anticipated in Colchester during September, with a total of 61.4 mm spread over approximately 18 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Colchester during September?
The average wind speed in Colchester during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Colchester

Explore the daily rainfall trends and prepare for Colchesters September weather 💧
Typically, Colchester has 18 rainy days in September with a total of 61.4 mm of rainfall.

UV exposure in Colchester during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Get accurate weather forecasts for Colchester, located at latitude 51.889 and longitude 0.904. Stay updated with localized weather information tailored for Colchester.

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