Bournemouth
September
Weather in Bournemouth for September 2026
Your guide to Bournemouth weather in September - trends and predictions
In general, the average temperature in Bournemouth at the beginning of September is 20.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17 °C by the end of September.
Bournemouth in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 83.4 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
13
Dry days
17
Rainy days
0
Snow days
19°/12°
Temperatures
24 km/h
Avg max wind
78 %
Avg humidity
Bournemouth Weather September
Move between months or click on a day
Temperatures trend during September in Bournemouth
See the weather trend as well as the moving average line
September weather in Bournemouth day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 21° /14° | 7 mm | 5 | |
| 2 Sept. | Light rain shower | 20° /13° | 4.1 mm | 4 | |
| 3 Sept. |  Sunny | 20° /13° | 2.9 mm | 5 | |
| 4 Sept. | Light rain shower | 21° /13° | 2.5 mm | 5 | |
| 5 Sept. | Sunny | 21° /13° | 3.7 mm | 5 | |
| 6 Sept. |  Overcast | 21° /14° | 5.2 mm | 5 | |
| 7 Sept. | Sunny | 22° /14° | 1.2 mm | 6 | |
| 8 Sept. |  Partly cloudy | 21° /14° | 7.5 mm | 5 | |
| 9 Sept. | Partly cloudy | 21° /14° | 0.6 mm | 5 | |
| 10 Sept. | Patchy rain possible | 21° /13° | 1.3 mm | 5 | |
| 11 Sept. |  Mist | 18° /12° | 1 mm | 4 | |
| 12 Sept. | Light rain shower | 17° /10° | 2.1 mm | 4 | |
| 13 Sept. | Overcast | 16° /9° | 2.4 mm | 4 | |
| 14 Sept. | Sunny | 18° /10° | 0.8 mm | 5 | |
| 15 Sept. | Sunny | 19° /12° | 0.2 mm | 5 | |
| 16 Sept. |  Cloudy | 20° /12° | 0.2 mm | 5 | |
| 17 Sept. | Light rain shower | 19° /12° | 1.8 mm | 4 | |
| 18 Sept. |  Patchy light rain with thunder | 21° /13° | 0.9 mm | 5 | |
| 19 Sept. |  Light drizzle | 20° /13° | 0.6 mm | 5 | |
| 20 Sept. | Light rain shower | 19° /12° | 4.8 mm | 4 | |
| 21 Sept. | Light rain shower | 16° /10° | 6 mm | 4 | |
| 22 Sept. | Light rain shower | 17° /9° | 1.3 mm | 4 | |
| 23 Sept. | Patchy rain possible | 16° /9° | 0.2 mm | 4 | |
| 24 Sept. | Patchy rain possible | 18° /11° | 0.8 mm | 4 | |
| 25 Sept. | Overcast | 18° /10° | 1.9 mm | 4 | |
| 26 Sept. | Patchy rain possible | 17° /10° | 7.9 mm | 4 | |
| 27 Sept. | Light rain shower | 15° /10° | 2.5 mm | 3 | |
| 28 Sept. | Patchy rain possible | 17° /10° | 0.6 mm | 4 | |
| 29 Sept. | Cloudy | 17° /9° | 1.5 mm | 4 | |
| 30 Sept. | Cloudy | 17° /10° | 3.5 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Bournemouth 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 Bournemouth forecast closer to your planned date for the most up-to-date weather information.
Change Month
Bournemouth in September - FAQ
What are the expected maximum and minimum temperatures in Bournemouth during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Bournemouth during September?
Moderate rainfall is anticipated in Bournemouth during September, with a total of 83.4 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Bournemouth during September?
The average wind speed in Bournemouth during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
Bournemouth water temperatures in September
The average water temperature of the Atlantic Ocean near Bournemouth in September is 17.2 °C. At the beginning of September temperatures are around 17.6 °C; by the end of the month they get a bit cooler and reach 16.8 °C.
- What is the water temperature in Bournemouth in September?
- The average water temperature in Bournemouth in September is 17.2 °C.
- Can you swim in Bournemouth 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 Bournemouth
Explore the daily rainfall trends and prepare for Bournemouths September weather 💧
UV exposure in Bournemouth during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Bournemouth weather pages
You are here
Where is Bournemouth?Get accurate weather forecasts for Bournemouth, located at latitude 50.72 and longitude -1.88. Stay updated with localized weather information tailored for Bournemouth.
Found a mistake?
We appreciate your attention to details. Tell us here.