Weather in Lyon for September 2025
In general, the average temperature in Lyon at the beginning of September is 28.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21 °C by the end of September.
Lyon experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 114.5 mm.
Is September a good time to visit Lyon? check out the best time to travel to Lyon page.
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Lyon in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  27° | 3  28° | 4 29° | 5 28° | 6  29° | 7 30° |
| 8 28° | 9  25° | 10 26° | 11 26° | 12 26° | 13 24° | 14 22° |
| 15 25° | 16 22° | 17  22° | 18 22° | 19 21° | 20 22° | 21 22° |
| 22 20° | 23 21° | 24 22° | 25 22° | 26  22° | 27 21° | 28 20° |
| 29 20° | 30 20° |
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Temperatures trend during September in Lyon
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 30° /14° | 0.1 mm | 7 | |
| 2 Sept. | Overcast | 27° /15° | 4.1 mm | 6 | |
| 3 Sept. | Patchy rain possible | 28° /16° | 5.5 mm | 7 | |
| 4 Sept. | Patchy rain possible | 29° /16° | 0.9 mm | 7 | |
| 5 Sept. | Partly cloudy | 28° /16° | 3.4 mm | 7 | |
| 6 Sept. | Sunny | 29° /15° | 1.7 mm | 7 | |
| 7 Sept. | Sunny | 30° /16° | 11.6 mm | 7 | |
| 8 Sept. | Sunny | 28° /16° | 8.7 mm | 7 | |
| 9 Sept. | Moderate rain at times | 25° /15° | 1.2 mm | 6 | |
| 10 Sept. | Moderate rain at times | 26° /14° | 0.6 mm | 6 | |
| 11 Sept. | Sunny | 26° /14° | 1.2 mm | 6 | |
| 12 Sept. | Sunny | 26° /13° | 2.8 mm | 6 | |
| 13 Sept. | Partly cloudy | 24° /14° | 0.2 mm | 6 | |
| 14 Sept. | Patchy rain possible | 22° /14° | 9.8 mm | 5 | |
| 15 Sept. | Sunny | 25° /13° | 8.4 mm | 6 | |
| 16 Sept. | Patchy rain possible | 22° /13° | 3.2 mm | 5 | |
| 17 Sept. | Cloudy | 22° /13° | 0.2 mm | 5 | |
| 18 Sept. | Overcast | 22° /11° | 9.9 mm | 5 | |
| 19 Sept. | Sunny | 21° /11° | 2.3 mm | 5 | |
| 20 Sept. | Moderate or heavy rain shower | 22° /11° | 7.6 mm | 6 | |
| 21 Sept. | Cloudy | 22° /11° | 3.8 mm | 5 | |
| 22 Sept. | Light rain shower | 20° /11° | 1.4 mm | 5 | |
| 23 Sept. | Patchy rain possible | 21° /10° | 3.3 mm | 5 | |
| 24 Sept. | Sunny | 22° /11° | 2.2 mm | 6 | |
| 25 Sept. | Cloudy | 22° /11° | 1.4 mm | 5 | |
| 26 Sept. | Heavy rain at times | 22° /12° | 7.2 mm | 5 | |
| 27 Sept. | Patchy rain possible | 21° /11° | 1.2 mm | 5 | |
| 28 Sept. | Cloudy | 20° /11° | 5.5 mm | 5 | |
| 29 Sept. | Patchy rain possible | 20° /9° | 3.2 mm | 5 | |
| 30 Sept. | Sunny | 20° /9° | 2.1 mm | 5 | |
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Guide for Lyon in September
In September, Lyon, France experiences a transition from the lingering warmth of summer to the crispness of early autumn. At the beginning of the month, the weather in Lyon is generally pleasant, with temperatures averaging around 20° and occasional showers.
The city is still basking in the remnants of summer, making it an ideal time to explore its charming streets and outdoor attractions.
As the month progresses, Lyon gradually cools down, with temperatures dropping to around 16° by the end of September. The weather becomes noticeably cooler, and the occasional rain showers become more frequent.
Visitors can expect the autumnal colors to start emerging in the city's parks and gardens, creating a picturesque setting for leisurely strolls and outdoor activities.
Overall, September in Lyon offers a delightful blend of late summer warmth and early autumn coolness, making it a great time to experience the city's cultural events and culinary delights.
Whether enjoying a leisurely walk along the Rhône River or savoring the local cuisine at outdoor cafes, visitors can embrace the changing seasons while exploring the beauty of Lyon.
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Lyon in September - FAQ
What to pack to Lyon in September?
As you prepare for your trip to Lyon 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 Lyon, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long 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
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Lyon
UV exposure in Lyon during September
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