Sunshine and warmth in Lyon and Marseille, risk of rain in Lille

Summer-like weather from Lyon to Marseille
Lyon will enjoy clear skies and notable warmth on September 13, with a high of 29 °C expected and a limited 10% chance of rain. Relative humidity will be around 29% during the day. Around 15:00, the thermometer will read 28 °C under clear skies, with winds at 2 m/s.
In Marseille, skies will also be clear, with a high of 27 °C and a 10% chance of rain. Relative humidity will be around 41% during the day. At 15:00, it will be 26 °C under clear skies, with winds at 2 m/s.
Sunny in Paris, rain possible in Lille around midday
In Paris, the day will be sunny with a few clouds, with a low of 16 °C and a high of 27 °C. Around 15:00, skies will be sunny at 26 °C, while the chance of rain will reach 40% at that same time, with no notable accumulation expected (0.0 mm).
In Lille, skies will be cloudy, with a low of 17 °C and a high of 21 °C. At 12:00, the probability of precipitation will reach 90%, with no accumulation expected (0.0 mm): carrying an umbrella is optional.
Excellent air quality, varying conditions for activities by city
Air quality is rated excellent in Lille and good in Paris, Lyon and Marseille. The driving index is excellent in all four cities. The outdoor activity index is excellent in Marseille, good in Paris and Lyon, but slightly unfavorable in Lille.
As for clothing, short sleeves will be sufficient in Paris, Lyon and Marseille, while long sleeves are recommended in Lille. Skin tends to be shiny in Paris and Lyon, where oil-control care is recommended, while slight skin dryness calls for moisturizing in Marseille.




