Bournemouth
September
Weather in Bournemouth for September 2025
Your guide to Bournemouth weather in September - trends and predictions
In general, the average temperature in Bournemouth at the beginning of September is 21.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.7 °C by the end of September.
The climate of Bournemouth in September is notably wet, with an average of 12 rainy days.
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18
Dry days
12
Rainy days
0
Snow days
20°/14°
Temperatures
24 km/h
Avg max wind
77 %
Avg humidity
Bournemouth in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2  20° | 3  20° | 4 21° | 5 21° | 6  22° | 7 23° |
| 8 22° | 9 22° | 10 22° | 11  18° | 12 17° | 13 16° | 14 18° |
| 15 20° | 16  21° | 17 19° | 18  21° | 19  20° | 20 19° | 21 18° |
| 22 17° | 23 16° | 24 18° | 25 17° | 26 18° | 27 15° | 28 16° |
| 29 16° | 30 17° |
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Temperatures trend during September in Bournemouth
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. | Partly cloudy | 21° /14° | 7.9 mm | 6 | |
| 2 Sept. | Light rain shower | 20° /13° | 1.3 mm | 5 | |
| 3 Sept. | Sunny | 20° /13° | 0.2 mm | 5 | |
| 4 Sept. | Sunny | 21° /13° | 1.3 mm | 5 | |
| 5 Sept. | Sunny | 21° /14° | 5.5 mm | 6 | |
| 6 Sept. | Overcast | 22° /15° | 7.8 mm | 5 | |
| 7 Sept. | Sunny | 23° /15° | 0.9 mm | 6 | |
| 8 Sept. | Partly cloudy | 22° /16° | 11.3 mm | 6 | |
| 9 Sept. | Partly cloudy | 22° /15° | 0.6 mm | 6 | |
| 10 Sept. | Patchy rain possible | 22° /13° | 0.5 mm | 5 | |
| 11 Sept. | Mist | 18° /12° | 0.1 mm | 4 | |
| 12 Sept. | Overcast | 17° /10° | 0.4 mm | 4 | |
| 13 Sept. | Overcast | 16° /9° | 0 mm | 5 | |
| 14 Sept. | Sunny | 18° /10° | 0 mm | 6 | |
| 15 Sept. | Sunny | 20° /11° | 0 mm | 6 | |
| 16 Sept. | Cloudy | 21° /13° | 0.1 mm | 5 | |
| 17 Sept. | Light rain shower | 19° /12° | 2.3 mm | 5 | |
| 18 Sept. | Patchy light rain with thunder | 21° /12° | 1.4 mm | 5 | |
| 19 Sept. | Light drizzle | 20° /13° | 0.8 mm | 5 | |
| 20 Sept. | Light rain shower | 19° /13° | 6.4 mm | 5 | |
| 21 Sept. | Light rain shower | 18° /12° | 5 mm | 4 | |
| 22 Sept. | Light rain shower | 17° /12° | 2 mm | 4 | |
| 23 Sept. | Patchy rain possible | 16° /10° | 0.3 mm | 4 | |
| 24 Sept. | Overcast | 18° /13° | 1.3 mm | 4 | |
| 25 Sept. | Overcast | 17° /12° | 2.8 mm | 4 | |
| 26 Sept. | Patchy rain possible | 18° /12° | 11.8 mm | 4 | |
| 27 Sept. | Light rain shower | 15° /10° | 3.3 mm | 4 | |
| 28 Sept. | Patchy rain possible | 16° /9° | 0.6 mm | 4 | |
| 29 Sept. | Cloudy | 16° /10° | 2.3 mm | 4 | |
| 30 Sept. | Cloudy | 17° /10° | 5.3 mm | 4 | |
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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.
Bournemouth in September - FAQ
What are the expected maximum and minimum temperatures in Bournemouth during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Bournemouth during September?
In September, Bournemouth can expect light to moderate rainfall, totaling 37.7 mm across approximately 12 days. Occasional showers are possible, and planning ahead for them could be helpful.
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.
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