Le Tréport Weather in September

What's the weather like in Le Tréport (Haute-Normandie) in September 2025?

The climate in Le Tréport during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Le Tréport and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 19°C (66°F), whilst at night 11°C (52°F) is normal.

Le Tréport weather averages (imperial / metric)
Daytime temperature 18.7°C 65.7°F
Nightly temperature 11.3°C 52.3°F
Average temperature 15°C 59°F
Daily sunshine 6.1 hrs
Avg rainfall 68 mm 2.7 ins
Rainy days 13 days
Sea temperature 17.4°C 63.3°F
Humidity 82%
Windspeed 14kph 9 mph

On average September is the 4th wettest month of the year in Le Tréport with around 68mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.1 hours of sunshine per day.

September temperatures in Le Tréport

Le Tréport average temperature in September

September rainfall

Le Tréport average rain in September

September hourly sunshine

Le Tréport average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Le Tréport in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Le Tréport weather stats

Le Tréport weather statistics
Hottest month: August 20.7°C 69.3°F
Driest month: April 47mm 1.9ins
Sunniest month: August 7.7hrs
Coldest month: January 6.1°C 43°F
Wettest month: November 86mm 3.4ins
Map showing location of Le Tréport (50.05979, 1.37583) Le Tréport map pin © Google

Locations nearby

Top France locations