Lyon has a oceanic/humid subtropical climate, classified as Cfb in the Köppen system. The warmest month is July with an average high of 27°C, while the coldest month is January with lows dropping to 0°C. The annual temperature range of 27°C reflects moderate seasonal variation.
The driest month is September with only 9 rain days and 92mm of precipitation. For travellers, September through to the following month typically offers the best balance of warm temperatures and dry conditions. Average humidity ranges from 65% to 65% throughout the year.
Best Time to Visit Lyon
Based on temperature and rainfall data, the best months to visit Lyon are August, September, April. These months offer the most comfortable temperatures with relatively low rainfall, ideal for sightseeing and outdoor activities.
In July, Lyon experiences average highs of 27°C (81°F) and lows of 16°C (61°F). Expect around 10 rainy days and 13 hours of sunshine per day, with humidity averaging 65%. The 11°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an overshirt or cardigan handles the cooler evenings. UV index averages 10, so sun protection is advisable on clear days.
Lyon typically sees 10 rainy days in July, with total precipitation of around 76mm. Rain is moderate and manageable. Showers tend to pass quickly, and a light rain layer or foldable umbrella is sufficient protection for most days. For context, the driest month in Lyon typically sees 4-6 fewer rain days than July.
Pack light layers, a light jacket for evenings, comfortable walking shoes, and sunscreen for Lyon in July. Daytime temperatures of 27°C are pleasant, but the evening drop to 16°C means a jacket is essential if you plan to be out after dark. With 10 rainy days, bring a compact umbrella or waterproof jacket for unexpected showers. Comfortable walking shoes are a priority given the amount of ground most visitors cover.
Yes, July is an excellent time to visit Lyon. With 13 daily sunshine hours and only 10 rainy days, conditions are ideal for sightseeing and outdoor activities. Temperatures averaging 27°C during the day are comfortable for long walks and outdoor dining. This is peak travel season, so booking accommodation in advance and arriving at popular attractions early in the morning helps avoid the busiest periods.
The average high temperature in Lyon in July is 27°C (81°F), and the average low is 16°C (61°F). The mean daily temperature is approximately 22°C (71°F). The day-to-night range of 11°C is moderate, meaning a single light jacket covers most situations. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.
The best month to visit Lyon is generally July. July offers the most sunshine at 13 hours per day and only 10 rainy days. Average temperatures reach 27°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around July gives you the best chance of dry, bright weather.
July is shoulder or low season in Lyon, meaning fewer tourists and generally lower prices than peak months. With 13 sunshine hours and 10 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.
In July, Lyon suits a range of activities thanks to mild temperatures around 27°C. Mix of indoor and outdoor activities works well given the moderate chance of rain. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 13 hours of sunshine, parks and waterfront walks are particularly enjoyable.