Paris vs Lyon

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Paris edges ahead as the better destination in September. Paris offers 9 hours of daily sunshine with only 8 rain days, while Lyon sees 9 sunshine hours and 9 rain days.

Paris sits in the comfortable travel range at 21°C. Lyon is also comfortable at 22°C.

For travelers who prioritize dry weather, Paris is the stronger choice in September.

Paris reaches an average high of 21°C (70°F) and drops to 12°C (54°F) at night during September. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Lyon averages 22°C (72°F) for the high and 13°C (55°F) for the low, with a daily range of 9°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.

Paris receives approximately 47 mm of rainfall across 8 rain days during September. You can expect rain roughly every other day.

Lyon sees 92 mm over 9 rain days. That makes Paris the drier option by 1 rain day and 45 mm of total precipitation.

Both cities share similar humidity levels at 65%.