Monthly climate guide
Lyon weather in September
September in Lyon is typically warm, with average daytime highs around 24°C (75°F) and night-time lows near 12°C (53°F). The month usually brings about 55 mm of rain (some rain) and is a mix of sun and cloud. Daytime highs are 4°C cooler than August and 6°C warmer than October.
What stands out in September
- Good walking weather for combining Presqu'île and Basilica of Notre-Dame de Fourvière in one day.
- In Lyon, September is early autumn.
- Temperatures are falling — expect highs around 6°C lower by October.
- Lyon is usually about 5°C warmer than Grenoble, 90 km away, in September.
Avg high
24°C
75°F
Avg low
12°C
53°F
Rainfall
55 mm
some rain
Humidity
67%
relative
Sky
53%
cloud · a mix of sun and cloud
Lyon weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 6°C / 43°F | 0°C / 31°F | 66 mm | 91% | 76% |
| February | 8°C / 46°F | -1°C / 30°F | 48 mm | 86% | 69% |
| March | 13°C / 55°F | 2°C / 36°F | 54 mm | 82% | 62% |
| April | 17°C / 62°F | 5°C / 42°F | 64 mm | 77% | 60% |
| May | 20°C / 68°F | 9°C / 48°F | 85 mm | 76% | 65% |
| June | 25°C / 77°F | 13°C / 56°F | 76 mm | 71% | 59% |
| July | 28°C / 82°F | 16°C / 60°F | 73 mm | 64% | 49% |
| August | 28°C / 83°F | 15°C / 60°F | 63 mm | 62% | 47% |
| September | 24°C / 75°F | 12°C / 53°F | 55 mm | 67% | 53% |
| October | 18°C / 64°F | 8°C / 46°F | 81 mm | 79% | 66% |
| November | 11°C / 53°F | 3°C / 38°F | 86 mm | 88% | 73% |
| December | 8°C / 46°F | 1°C / 33°F | 77 mm | 91% | 71% |
What to pack for September
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
- A small travel umbrella, just in case
Is September a good time to visit Lyon?
Our Lyon guide recommends: April to June or September to October.
Eat at a traditional bouchon — Lyon's classic small restaurants serving hearty local dishes like quenelles and andouillette.
Best time to visit Lyon →Other France cities in September
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Lyon weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/france/lyon/september
<a href="https://weathercompare.eu/weather/france/lyon/september">Lyon weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/france/lyon" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Lyon weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/france/lyon/september">Lyon weather in September</a> – WeatherCompare</p>
Lyon in September: quick answers
Is September a good time to visit Lyon?
Yes. September is one of the best months for Lyon, with highs around 24°C and about 55 mm of rain.
How warm is Lyon in September?
Average highs are about 24°C (75°F) and average lows about 12°C (53°F), based on 10 years of daily data.
Does it rain a lot in Lyon in September?
Lyon typically gets around 55 mm of rain in September — some rain.
When is the best time to visit Lyon?
April to June or September to October.
Figures are long-term averages for the area around Lyon (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.