Weather in Marseille for September 2025
Until now, September 2025 in Marseille has been significantly cooler than historical averages by -2 °C, with average temperature of 23.9 °C.
Expect cooler weather in the next days in Marseille with the forecast suggesting a temperature of 22.4 °C, lower than the historical average.
In general, the average temperature in Marseille at the beginning of September is 26.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.4 °C by the end of September.
Marseille in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 77.8 mm.
Is September a good time to visit Marseille? check out the best time to travel to Marseille page.
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Marseille Weather September
Temperatures trend during September in Marseille
September weather in Marseille day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 26° /21° | 1.9 mm | 6 | |
| 2 Sept. |  Partly cloudy | 26° /21° | 3.8 mm | 6 | |
| 3 Sept. |  Heavy rain at times | 26° /21° | 3.9 mm | 6 | |
| 4 Sept. | Sunny | 26° /21° | 2 mm | 6 | |
| 5 Sept. | Sunny | 26° /20° | 7 mm | 6 | |
| 6 Sept. | Sunny | 26° /21° | 0.3 mm | 6 | |
| 7 Sept. | Sunny | 27° /21° | 4.1 mm | 7 | |
| 8 Sept. | Sunny | 27° /21° | 5.8 mm | 7 | |
| 9 Sept. | Sunny | 26° /21° | 0.1 mm | 6 | |
| 10 Sept. | Sunny | 25° /20° | 0.4 mm | 6 | |
| 11 Sept. | Sunny | 26° /19° | 0.2 mm | 7 | |
| 12 Sept. | Sunny | 25° /19° | 0 mm | 6 | |
| 13 Sept. | Sunny | 25° /19° | 2.9 mm | 6 | |
| 14 Sept. | Sunny | 25° /19° | 3.8 mm | 6 | |
| 15 Sept. | Sunny | 26° /19° | 1.9 mm | 6 | |
| 16 Sept. | Sunny | 25° /21° | 0 mm | 1.3 | |
| 17 Sept. | Sunny | 26° /18° | 0 mm | 1.4 | |
| 18 Sept. | Sunny | 24° /20° | 0 mm | 1.4 | |
| 19 Sept. | Sunny | 25° /21° | 0 mm | 1.5 | |
| 20 Sept. | Sunny | 25° /21° | 0 mm | 1.5 | |
| 21 Sept. | Partly cloudy | 24° /22° | 0.1 mm | 6 | |
| 22 Sept. |  Patchy rain possible | 23° /20° | 0.5 mm | 5 | |
| 23 Sept. | Patchy rain possible | 20° /15° | 1.9 mm | 4 | |
| 24 Sept. | Patchy rain possible | 19° /14° | 0.7 mm | 4 | |
| 25 Sept. | Sunny | 20° /13° | 0 mm | 5 | |
| 26 Sept. | Sunny | 21° /14° | 0 mm | 5 | |
| 27 Sept. | Sunny | 21° /14° | 0 mm | 5 | |
| 28 Sept. | Sunny | 20° /17° | 0 mm | 5 | |
| 29 Sept. |  Moderate rain | 20° /17° | 6.1 mm | 4 | |
| 30 Sept. | Sunny | 22° /16° | 0 mm | 6 | |
| Next | |||||
Marseille weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Sunny |
| Temperatures | 28°/22° | 24°/19° | 21°/17° |
| Rainfall | 50 mm | 78 mm | 83 mm |
| Wind | 22.2 km/h | 24.1 km/h | 22.8 km/h |
| Humidity | 57% | 61% | 67% |
| Rainy days | 8 days | 16 days | 17 days |
| Dry days | 23 days | 14 days | 14 days |
Planning a trip to Marseille? Discover the best time to visit
Guide for Marseille in September
In September, Marseille, France experiences a pleasant transition from summer to autumn. At the beginning of the month, the weather in Marseille is still warm and inviting, with average temperatures around 24°.
The city enjoys plenty of sunshine, making it an ideal time to explore the beautiful coastal landscapes and vibrant city streets. However, as the month progresses, the temperatures gradually begin to cool down.
By the end of September, the average temperatures in Marseille drop to around 20°, signaling the arrival of autumn. While the weather remains relatively mild, visitors should be prepared for cooler evenings and the possibility of occasional rain showers.
Overall, September offers a wonderful opportunity to experience the best of Marseille's outdoor attractions, from the stunning Calanques to the historic Old Port, before the arrival of the cooler autumn weather.
Marseille in September - FAQ
Marseille water temperatures in September
The average water temperature of the Mediterranean Sea near Marseille in September is 20.7 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in Marseille in September?
- The average water temperature in Marseille in September is 20.7 °C.
- Can you swim in Marseille in September?
- Refreshing and invigorating. Expect to feel chilled after 10–20 minutes; a shorty wetsuit extends water time, especially at dawn.
What to pack to Marseille in September?
As you prepare for your trip to Marseille in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Marseille, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Marseille
UV exposure in Marseille during September
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Where is Marseille?Get accurate weather forecasts for Marseille, located at latitude 43.297 and longitude 5.381. Stay updated with localized weather information tailored for Marseille.