Chelmsford
September
Weather in Chelmsford for September 2027
Your guide to Chelmsford weather in September - trends and predictions
In general, the average temperature in Chelmsford at the beginning of September is 22.5 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.2 °C by the end of September.
Chelmsford experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 53.4 mm.
Is September a good time to visit Chelmsford? check out the best time to travel to Chelmsford page.
✨ Is September a good time to visit Chelmsford? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
21
Dry days
9
Rainy days
0
Snow days
20°/12°
Temperatures
23 km/h
Avg max wind
70 %
Avg humidity
Chelmsford Weather September
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Temperatures trend during September in Chelmsford
See the weather trend as well as the moving average line
September weather in Chelmsford day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 22° /13° | 2.1 mm | 5 | |
| 2 Sept. |  Overcast | 22° /14° | 0.7 mm | 4 | |
| 3 Sept. | Patchy rain possible | 23° /15° | 1.4 mm | 4 | |
| 4 Sept. | Light rain shower | 20° /14° | 1.8 mm | 4 | |
| 5 Sept. | Patchy rain possible | 22° /13° | 1 mm | 5 | |
| 6 Sept. | Overcast | 25° /15° | 0.3 mm | 5 | |
| 7 Sept. |  Light rain | 24° /16° | 2.7 mm | 5 | |
| 8 Sept. | Light rain | 21° /14° | 5.3 mm | 4 | |
| 9 Sept. | Patchy rain possible | 22° /13° | 0 mm | 4.9 | |
| 10 Sept. | Light rain shower | 22° /13° | 1.1 mm | 4.8 | |
| 11 Sept. | Patchy rain possible | 20° /12° | 1.1 mm | 4 | |
| 12 Sept. | Overcast | 19° /11° | 0.3 mm | 4 | |
| 13 Sept. | Patchy rain possible | 18° /12° | 1.7 mm | 3 | |
| 14 Sept. |  Cloudy | 20° /11° | 0.7 mm | 4 | |
| 15 Sept. |  Sunny | 21° /13° | 0 mm | 4.4 | |
| 16 Sept. | Cloudy | 20° /12° | 0.1 mm | 4 | |
| 17 Sept. | Patchy rain possible | 19° /13° | 1.1 mm | 4 | |
| 18 Sept. | Light rain shower | 22° /13° | 1.9 mm | 4 | |
| 19 Sept. |  Partly cloudy | 22° /14° | 0.6 mm | 4 | |
| 20 Sept. | Light rain | 21° /14° | 6.1 mm | 4 | |
| 21 Sept. | Light rain shower | 19° /11° | 2.2 mm | 3.9 | |
| 22 Sept. | Light rain | 19° /12° | 5.6 mm | 3.8 | |
| 23 Sept. | Patchy rain possible | 19° /10° | 0.5 mm | 3.7 | |
| 24 Sept. | Overcast | 18° /10° | 0.4 mm | 3 | |
| 25 Sept. | Overcast | 19° /12° | 0.9 mm | 3.5 | |
| 26 Sept. | Light rain | 18° /11° | 4.5 mm | 3 | |
| 27 Sept. | Patchy rain possible | 18° /10° | 2.4 mm | 3 | |
| 28 Sept. | Cloudy | 17° /10° | 0 mm | 3 | |
| 29 Sept. | Overcast | 18° /10° | 0.8 mm | 3 | |
| 30 Sept. | Light rain | 19° /12° | 5.8 mm | 3.1 | |
| Next | |||||
Important Notice
Our weather forecast for Chelmsford 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 Chelmsford forecast closer to your planned date for the most up-to-date weather information.
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Chelmsford in September - FAQ
What are the expected maximum and minimum temperatures in Chelmsford during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Chelmsford during September?
Moderate rainfall is anticipated in Chelmsford during September, with a total of 53.4 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Chelmsford during September?
The average wind speed in Chelmsford during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Chelmsford
Explore the daily rainfall trends and prepare for Chelmsfords September weather 💧
Typically, Chelmsford has 9 rainy days in September with a total of 53.4 mm of rainfall.
UV exposure in Chelmsford during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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