Weather in Paris in September

In September, Paris begins its transition from summer to autumn with mild and pleasant weather. Expect moderately warm temperatures during the day, cooling off by evening, with moderate rainfall and a delightful number of sunshine hours. Humidity is generally comfortable, making it favourable for exploring the city’s renowned sights and partaking in outdoor activities aligned with the mild climate.

September Climate Overview

• Average Temperature: 15°C to 21°C
• Rainfall: Approximately 51mm
• Sunshine Hours: Around 180 hours
• Humidity: 70%
• Wind Speed: 12 km/h

What to Expect in September

Daytime Conditions

During the day, temperatures are generally pleasant, reaching highs around 21°C. The sun is often shining, but clouds may occasionally obscure it. Humidity levels are mild, offering comfortable conditions for sightseeing and exploring the city’s vast cultural landmarks.

Rainfall Patterns

Rainfall in September comes in light showers, which are typically scattered and short-lived. Although rain can occur, it often doesn’t hinder outdoor plans. Be prepared with an umbrella, but consider it a refreshing interval rather than a disturbance.

Evening Conditions

Evenings in September see a cooling down to around 15°C, encouraging a light jacket or sweater. Breezes can occur, contributing to a fresh feel in the air, allowing for comfortable evening strolls by the Seine or outdoor dining experiences.

Best Activities in Paris in September

• Outdoor Activities: Embark on a scenic stroll through the gardens of Versailles or enjoy walking tours of iconic districts like Montmartre.
• Seasonal Highlights: The beginning of wine harvest season offers a glimpse into local cultural practices, and the city’s parks showcase early autumn foliage.
• Water-based or Nature-based Activities: Enjoy river cruises on the Seine as the weather permits a pleasant hour or two on water.

What to Pack for September

• Appropriate clothing for daytime and evening temperatures
• Protection from sun or rain (hat, sunscreen, umbrella, etc.)
• Footwear suitable for city streets and extensive walking tours
• Reusable water bottle