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Weather in Colchester for September 2025

Your guide to Colchester weather in September - trends and predictions
  • In general, the average temperature in Colchester at the beginning of September is 22.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °C by the end of September.

  • Colchester 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
21°/15°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Colchester in September average weather

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Temperatures trend during September in Colchester

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. Cloudy
Cloudy
22° /14° 2.1 mm 5
2 Sept. Cloudy
Cloudy
23° /15° 0.2 mm 5
3 Sept. Overcast
Overcast
22° /14° 1.1 mm 5
4 Sept. Sunny
Sunny
20° /14° 1.1 mm 5
5 Sept. Partly cloudy
Partly cloudy
22° /15° 1.9 mm 6
6 Sept. Sunny
Sunny
25° /17° 1.3 mm 6
7 Sept. Partly cloudy
Partly cloudy
24° /16° 4.5 mm 6
8 Sept. Overcast
Overcast
23° /15° 2.8 mm 5
9 Sept. Sunny
Sunny
22° /15° 0.3 mm 6
10 Sept. Partly cloudy
Partly cloudy
23° /15° 1.5 mm 6
11 Sept. Cloudy
Cloudy
20° /12° 0.6 mm 5
12 Sept. Overcast
Overcast
17° /10° 0.5 mm 4
13 Sept. Overcast
Overcast
17° /11° 0 mm 5
14 Sept. Partly cloudy
Partly cloudy
19° /10° 0 mm 6
15 Sept. Sunny
Sunny
21° /12° 0 mm 6
16 Sept. Partly cloudy
Partly cloudy
21° /13° 0 mm 5
17 Sept. Patchy rain possible
Patchy rain possible
20° /13° 0.2 mm 5
18 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
21° /13° 2.5 mm 5
19 Sept. Light rain
Light rain
20° /14° 1.3 mm 5
20 Sept. Light rain shower
Light rain shower
20° /15° 12.8 mm 5
21 Sept. Patchy light drizzle
Patchy light drizzle
19° /13° 3.2 mm 5
22 Sept. Patchy light drizzle
Patchy light drizzle
18° /13° 12 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
18° /11° 2.1 mm 4
24 Sept. Overcast
Overcast
18° /11° 0.3 mm 4
25 Sept. Overcast
Overcast
19° /12° 2.1 mm 5
26 Sept. Light rain shower
Light rain shower
19° /12° 6.8 mm 5
27 Sept. Patchy rain possible
Patchy rain possible
17° /10° 3.6 mm 4
28 Sept. Partly cloudy
Partly cloudy
16° /9° 0 mm 5
29 Sept. Light rain shower
Light rain shower
16° /11° 0.9 mm 4
30 Sept. Partly cloudy
Partly cloudy
16° /10° 14 mm 5
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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.

Colchester in September - FAQ

What are the expected maximum and minimum temperatures in Colchester during September?
During September, expect a variety of temperatures with highs around 21° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Colchester during September?
In September, Colchester can expect light to moderate rainfall, totaling 44.8 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Colchester during September?
The average wind speed in Colchester during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

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Location coordinates Where is Colchester?

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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