Weymouth
September
Weather in Weymouth for September 2026
Your guide to Weymouth weather in September - trends and predictions
In general, the average temperature in Weymouth at the beginning of September is 19.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.1 °C by the end of September.
Weymouth in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 90.8 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
11
Dry days
19
Rainy days
0
Snow days
17°/14°
Temperatures
29 km/h
Avg max wind
79 %
Avg humidity
Weymouth Weather September
Move between months or click on a day
Temperatures trend during September in Weymouth
See the weather trend as well as the moving average line
September weather in Weymouth day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 19° /15° | 4.5 mm | 5 | |
| 2 Sept. | Light rain shower | 19° /14° | 3.1 mm | 4 | |
| 3 Sept. | Light rain shower | 19° /15° | 3.3 mm | 4 | |
| 4 Sept. |  Sunny | 19° /14° | 5.3 mm | 5 | |
| 5 Sept. | Sunny | 19° /14° | 3.7 mm | 5 | |
| 6 Sept. |  Overcast | 20° /15° | 6.9 mm | 5 | |
| 7 Sept. | Sunny | 20° /16° | 1.1 mm | 5 | |
| 8 Sept. |  Partly cloudy | 18° /15° | 5.9 mm | 5 | |
| 9 Sept. | Partly cloudy | 19° /15° | 1.8 mm | 5 | |
| 10 Sept. | Light rain shower | 18° /14° | 2.2 mm | 4 | |
| 11 Sept. | Partly cloudy | 17° /13° | 1.3 mm | 4 | |
| 12 Sept. | Overcast | 16° /12° | 2.1 mm | 4 | |
| 13 Sept. | Overcast | 15° /11° | 2.4 mm | 4 | |
| 14 Sept. | Sunny | 17° /13° | 1.2 mm | 4 | |
| 15 Sept. | Sunny | 17° /14° | 0.5 mm | 5 | |
| 16 Sept. | Patchy rain possible | 18° /14° | 0.4 mm | 4 | |
| 17 Sept. | Light rain shower | 18° /13° | 3.2 mm | 4 | |
| 18 Sept. | Light rain shower | 19° /14° | 1.5 mm | 5 | |
| 19 Sept. | Light rain shower | 19° /14° | 1 mm | 5 | |
| 20 Sept. | Light rain shower | 18° /13° | 3.9 mm | 4 | |
| 21 Sept. | Light rain shower | 15° /12° | 8.1 mm | 4 | |
| 22 Sept. | Light rain shower | 16° /11° | 2.1 mm | 4 | |
| 23 Sept. | Patchy rain possible | 16° /11° | 0.2 mm | 4 | |
| 24 Sept. | Overcast | 17° /12° | 0.8 mm | 4 | |
| 25 Sept. | Overcast | 16° /12° | 2 mm | 4 | |
| 26 Sept. | Patchy rain possible | 16° /12° | 8.6 mm | 4 | |
| 27 Sept. |  Patchy light drizzle | 16° /12° | 3.2 mm | 4 | |
| 28 Sept. | Patchy rain possible | 16° /12° | 0.5 mm | 4 | |
| 29 Sept. | Overcast | 16° /12° | 3.9 mm | 4 | |
| 30 Sept. |  Cloudy | 16° /12° | 3.2 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Weymouth 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 Weymouth forecast closer to your planned date for the most up-to-date weather information.
Change Month
Weymouth in September - FAQ
What are the expected maximum and minimum temperatures in Weymouth during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Weymouth during September?
Moderate rainfall is anticipated in Weymouth during September, with a total of 90.8 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Weymouth during September?
The average wind speed in Weymouth during September is 29 km/h, suggesting breezy to windy conditions, depending on your activities.
Weymouth water temperatures in September
The average water temperature of the Atlantic Ocean near Weymouth in September is 17 °C. At the beginning of September temperatures are around 17.4 °C; by the end of the month they get a bit cooler and reach 16.6 °C.
- What is the water temperature in Weymouth in September?
- The average water temperature in Weymouth in September is 17 °C.
- Can you swim in Weymouth in September?
- Brisk: quick dips and active swimming are fine, but pack a 2–3 mm spring suit if you plan longer sessions or early-morning outings.
September rainfall patterns in Weymouth
Explore the daily rainfall trends and prepare for Weymouths September weather 💧
Quick links
More Weymouth weather pages
You are here
Where is Weymouth?Get accurate weather forecasts for Weymouth, located at latitude 50.614 and longitude -2.46. Stay updated with localized weather information tailored for Weymouth.
Found a mistake?
We appreciate your attention to details. Tell us here.