Colchester
September
Weather in Colchester for September 2025
Your guide to Colchester weather in September - trends and predictions
Until now, September 2025 in Colchester is slightly cooler than the historical average by -1.6 °C.
The forecast for the next days in Colchester predicts a temperature of 17.1 °C, which is cooler than the historical average.
In general, the average temperature in Colchester at the beginning of September is 22.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.4 °C by the end of September.
Colchester in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 79.7 mm.
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Temperatures
Rain 🌧️
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12
Dry days
18
Rainy days
0
Snow days
20°/13°
Temperatures
23 km/h
Avg max wind
73 %
Avg humidity
Colchester Weather September
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Temperatures trend during September in Colchester
See the weather trend as well as the moving average line
September weather in Colchester day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Cloudy | 22° /14° | 2 mm | 5 | |
| 2 Sept. | Cloudy | 22° /14° | 0.9 mm | 5 | |
| 3 Sept. |  Light rain shower | 22° /14° | 2.2 mm | 5 | |
| 4 Sept. | Light rain shower | 20° /14° | 1.7 mm | 5 | |
| 5 Sept. |  Partly cloudy | 22° /13° | 1.3 mm | 5 | |
| 6 Sept. |  Sunny | 24° /16° | 0.9 mm | 6 | |
| 7 Sept. | Patchy rain possible | 24° /16° | 3.2 mm | 6 | |
| 8 Sept. |  Overcast | 23° /15° | 1.8 mm | 5 | |
| 9 Sept. | Sunny | 21° /14° | 0.2 mm | 5 | |
| 10 Sept. | Partly cloudy | 22° /14° | 1.1 mm | 5 | |
| 11 Sept. | Cloudy | 20° /12° | 0.5 mm | 4 | |
| 12 Sept. | Overcast | 17° /10° | 0.4 mm | 4 | |
| 13 Sept. | Overcast | 18° /11° | 0.7 mm | 4 | |
| 14 Sept. | Partly cloudy | 19° /10° | 0.9 mm | 5 | |
| 15 Sept. | Sunny | 21° /12° | 0 mm | 6 | |
| 16 Sept. | Partly cloudy | 18° /13° | 0.1 mm | 0.7 | |
| 17 Sept. |  Moderate rain | 17° /12° | 10.5 mm | 0.1 | |
| 18 Sept. | Patchy rain possible | 22° /16° | 0.1 mm | 0.9 | |
| 19 Sept. | Overcast | 25° /15° | 0 mm | 0.9 | |
| 20 Sept. | Patchy rain possible | 18° /14° | 0.3 mm | 0.3 | |
| 21 Sept. | Patchy rain possible | 18° /11° | 0.2 mm | 3 | |
| 22 Sept. | Patchy rain possible | 15° /11° | 0.2 mm | 3 | |
| 23 Sept. | Patchy rain possible | 15° /9° | 0.1 mm | 3 | |
| 24 Sept. | Partly cloudy | 14° /8° | 0 mm | 4 | |
| 25 Sept. | Partly cloudy | 16° /8° | 0 mm | 4 | |
| 26 Sept. | Patchy rain possible | 16° /9° | 0 mm | 3 | |
| 27 Sept. | Patchy rain possible | 15° /8° | 0.1 mm | 3 | |
| 28 Sept. | Patchy rain possible | 15° /11° | 1.4 mm | 3 | |
| 29 Sept. | Patchy rain possible | 16° /11° | 0.7 mm | 3 | |
| 30 Sept. | 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.
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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 20° 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 79.7 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 23 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 💧
UV exposure in Colchester during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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