Dorset (Weymouth)
September
Weather in Dorset for September 2025
Your guide to Dorset weather in September - trends and predictions
In general, the average temperature in Dorset at the beginning of September is 19.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 16.3 °C by the end of September.
The climate of Dorset in September is notably wet, with an average of 14 rainy days.
- New! Chat with our AI weatherman - it’s amazing and free.
16
Dry days
14
Rainy days
0
Snow days
19°/15°
Temperatures
28 km/h
Avg max wind
80 %
Avg humidity
Dorset in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2  19° | 3  19° | 4 19° | 5 19° | 6  20° | 7 20° |
| 8 19° | 9 20° | 10 19° | 11 17° | 12 16° | 13 15° | 14 16° |
| 15 18° | 16 19° | 17 18° | 18 19° | 19 19° | 20 18° | 21 17° |
| 22 16° | 23 16° | 24 17° | 25 16° | 26 16° | 27  16° | 28 16° |
| 29 17° | 30  16° |
You can click on date
Access Dorset weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Dorset
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 19° /15° | 2.9 mm | 5 | |
| 2 Sept. | Light rain shower | 19° /14° | 0.8 mm | 4 | |
| 3 Sept. | Sunny | 19° /15° | 0.7 mm | 5 | |
| 4 Sept. | Sunny | 19° /15° | 0.5 mm | 5 | |
| 5 Sept. | Sunny | 19° /14° | 5.5 mm | 5 | |
| 6 Sept. | Overcast | 20° /16° | 10.4 mm | 5 | |
| 7 Sept. | Sunny | 20° /16° | 1.1 mm | 5 | |
| 8 Sept. | Partly cloudy | 19° /16° | 8.8 mm | 5 | |
| 9 Sept. | Partly cloudy | 20° /16° | 1 mm | 6 | |
| 10 Sept. | Patchy rain possible | 19° /14° | 1.7 mm | 5 | |
| 11 Sept. | Partly cloudy | 17° /14° | 0.2 mm | 4 | |
| 12 Sept. | Overcast | 16° /12° | 0.3 mm | 4 | |
| 13 Sept. | Overcast | 15° /10° | 0 mm | 4 | |
| 14 Sept. | Sunny | 16° /13° | 0 mm | 5 | |
| 15 Sept. | Sunny | 18° /14° | 0 mm | 5 | |
| 16 Sept. | Patchy rain possible | 19° /14° | 0.3 mm | 5 | |
| 17 Sept. | Light rain shower | 18° /13° | 4 mm | 5 | |
| 18 Sept. | Light rain shower | 19° /14° | 2.2 mm | 5 | |
| 19 Sept. | Light rain shower | 19° /14° | 1.4 mm | 5 | |
| 20 Sept. | Light rain shower | 18° /14° | 5.4 mm | 4 | |
| 21 Sept. | Light rain shower | 17° /13° | 7.1 mm | 4 | |
| 22 Sept. | Light rain shower | 16° /13° | 3.1 mm | 4 | |
| 23 Sept. | Patchy rain possible | 16° /13° | 0.4 mm | 4 | |
| 24 Sept. | Overcast | 17° /14° | 1.2 mm | 4 | |
| 25 Sept. | Overcast | 16° /14° | 3 mm | 4 | |
| 26 Sept. | Patchy rain possible | 16° /13° | 12.9 mm | 4 | |
| 27 Sept. | Patchy light drizzle | 16° /12° | 4.4 mm | 4 | |
| 28 Sept. | Light drizzle | 16° /11° | 0.7 mm | 4 | |
| 29 Sept. | Overcast | 17° /13° | 5.9 mm | 4 | |
| 30 Sept. | Cloudy | 16° /13° | 4.8 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Dorset 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 Dorset forecast closer to your planned date for the most up-to-date weather information.
Dorset in September - FAQ
What are the expected maximum and minimum temperatures in Dorset during September?
During September, expect a variety of temperatures with highs around 19° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Dorset during September?
In September, Dorset can expect light to moderate rainfall, totaling 45.6 mm across approximately 14 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Dorset during September?
The average wind speed in Dorset during September is 28 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Dorset
Explore the daily rainfall trends and prepare for Dorsets September weather 💧
Top locations in Dorset
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is Dorset?Get accurate weather forecasts for Dorset, located at latitude 50.614 and longitude -2.46. Stay updated with localized weather information tailored for Dorset.
Found a mistake?
We appreciate your attention to details. Tell us here.