Colchester
September
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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21
Dry days
9
Rainy days
0
Snow days
21°/15°
Temperatures
22 km/h
Avg max wind
71 %
Avg humidity
Colchester in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  22° | 2 23° | 3  22° | 4  20° | 5  22° | 6 25° | 7 24° |
| 8 23° | 9 22° | 10 23° | 11 20° | 12 17° | 13 17° | 14 19° |
| 15 21° | 16 21° | 17  20° | 18  21° | 19  20° | 20 20° | 21 19° |
| 22 18° | 23 18° | 24 18° | 25 19° | 26 19° | 27 17° | 28 16° |
| 29 16° | 30 16° |
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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 | 22° /14° | 2.1 mm | 5 | |
| 2 Sept. | Cloudy | 23° /15° | 0.2 mm | 5 | |
| 3 Sept. | Overcast | 22° /14° | 1.1 mm | 5 | |
| 4 Sept. | Sunny | 20° /14° | 1.1 mm | 5 | |
| 5 Sept. | Partly cloudy | 22° /15° | 1.9 mm | 6 | |
| 6 Sept. | Sunny | 25° /17° | 1.3 mm | 6 | |
| 7 Sept. | Partly cloudy | 24° /16° | 4.5 mm | 6 | |
| 8 Sept. | Overcast | 23° /15° | 2.8 mm | 5 | |
| 9 Sept. | Sunny | 22° /15° | 0.3 mm | 6 | |
| 10 Sept. | Partly cloudy | 23° /15° | 1.5 mm | 6 | |
| 11 Sept. | Cloudy | 20° /12° | 0.6 mm | 5 | |
| 12 Sept. | Overcast | 17° /10° | 0.5 mm | 4 | |
| 13 Sept. | Overcast | 17° /11° | 0 mm | 5 | |
| 14 Sept. | Partly cloudy | 19° /10° | 0 mm | 6 | |
| 15 Sept. | Sunny | 21° /12° | 0 mm | 6 | |
| 16 Sept. | Partly cloudy | 21° /13° | 0 mm | 5 | |
| 17 Sept. | Patchy rain possible | 20° /13° | 0.2 mm | 5 | |
| 18 Sept. | Moderate or heavy rain with thunder | 21° /13° | 2.5 mm | 5 | |
| 19 Sept. | Light rain | 20° /14° | 1.3 mm | 5 | |
| 20 Sept. | Light rain shower | 20° /15° | 12.8 mm | 5 | |
| 21 Sept. | Patchy light drizzle | 19° /13° | 3.2 mm | 5 | |
| 22 Sept. | Patchy light drizzle | 18° /13° | 12 mm | 4 | |
| 23 Sept. | Patchy rain possible | 18° /11° | 2.1 mm | 4 | |
| 24 Sept. | Overcast | 18° /11° | 0.3 mm | 4 | |
| 25 Sept. | Overcast | 19° /12° | 2.1 mm | 5 | |
| 26 Sept. | Light rain shower | 19° /12° | 6.8 mm | 5 | |
| 27 Sept. | Patchy rain possible | 17° /10° | 3.6 mm | 4 | |
| 28 Sept. | Partly cloudy | 16° /9° | 0 mm | 5 | |
| 29 Sept. | Light rain shower | 16° /11° | 0.9 mm | 4 | |
| 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.
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.
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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