Ostend
September
Weather in Ostend for September 2025
Your guide to Ostend weather in September - trends and predictions
Moderate Wind Warning - See hour by hour.
Until now, September 2025 in Ostend is slightly cooler than the historical average by -0.9 °C.
Expect cooler weather in the next days in Ostend with the forecast suggesting a temperature of 17.6 °C, lower than the historical average.
In general, the average temperature in Ostend at the beginning of September is 22.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.6 °C by the end of September.
Ostend experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 97 mm.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
5
Dry days
25
Rainy days
0
Snow days
19°/14°
Temperatures
24 km/h
Avg max wind
75 %
Avg humidity
Ostend Weather September
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Temperatures trend during September in Ostend
See the weather trend as well as the moving average line
September weather in Ostend day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 22° /15° | 5 mm | 5 | |
| 2 Sept. |  Partly cloudy | 22° /15° | 1.7 mm | 6 | |
| 3 Sept. |  Sunny | 21° /15° | 1.5 mm | 5 | |
| 4 Sept. | Sunny | 21° /15° | 0.6 mm | 5 | |
| 5 Sept. | Sunny | 22° /15° | 3 mm | 6 | |
| 6 Sept. | Sunny | 22° /15° | 2.3 mm | 5 | |
| 7 Sept. | Sunny | 25° /15° | 1.5 mm | 6 | |
| 8 Sept. | Sunny | 22° /16° | 2.8 mm | 5 | |
| 9 Sept. |  Moderate or heavy rain shower | 20° /15° | 3.9 mm | 5 | |
| 10 Sept. | Light rain shower | 22° /16° | 2.5 mm | 5 | |
| 11 Sept. | Light rain shower | 18° /15° | 3.8 mm | 4 | |
| 12 Sept. | Patchy rain possible | 19° /14° | 2.8 mm | 5 | |
| 13 Sept. |  Moderate rain | 18° /13° | 9.1 mm | 0.7 | |
| 14 Sept. | Patchy rain possible | 20° /14° | 3.6 mm | 0.9 | |
| 15 Sept. | Patchy rain possible | 18° /16° | 3.6 mm | 1 | |
| 16 Sept. | Patchy rain possible | 18° /15° | 2.2 mm | 0.9 | |
| 17 Sept. | Patchy rain possible | 19° /14° | 4.9 mm | 0.1 | |
| 18 Sept. | Patchy rain possible | 17° /16° | 0.3 mm | 4 | |
| 19 Sept. | Patchy rain possible | 16° /14° | 0.2 mm | 4 | |
| 20 Sept. | Partly cloudy | 25° /17° | 0 mm | 5 | |
| 21 Sept. | Patchy rain possible | 19° /13° | 0.3 mm | 4 | |
| 22 Sept. | Moderate rain | 15° /13° | 6.2 mm | 3 | |
| 23 Sept. | Patchy rain possible | 15° /14° | 3.2 mm | 3 | |
| 24 Sept. | Patchy rain possible | 15° /14° | 1.9 mm | 3 | |
| 25 Sept. | Sunny | 15° /11° | 0 mm | 4 | |
| 26 Sept. | Partly cloudy | 16° /13° | 0 mm | 4 | |
| 27 Sept. | Moderate or heavy rain shower | 17° /12° | 10 mm | 4 | |
| 28 Sept. | Patchy rain possible | 15° /12° | 1.1 mm | 4 | |
| 29 Sept. | Moderate rain at times | 15° /10° | 1.7 mm | 3 | |
| 30 Sept. | Moderate rain at times | 16° /11° | 4.3 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Ostend 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 Ostend forecast closer to your planned date for the most up-to-date weather information.
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Ostend in September - FAQ
What are the expected maximum and minimum temperatures in Ostend during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Ostend during September?
Moderate rainfall is anticipated in Ostend during September, with a total of 97 mm spread over approximately 25 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Ostend during September?
The average wind speed in Ostend during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Ostend
Explore the daily rainfall trends and prepare for Ostends September weather 💧
UV exposure in Ostend during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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