Saint-Martin-Boulogne Weather in September

September in Saint-Martin-Boulogne sees daytime temperatures around 20°C (68°F) and lows of 13°C (55°F) at night. With around 74 mm (2.9 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Saint-Martin-Boulogne in September

You can expect rain on around 13 days based on historical patterns, with 74 mm (2.9 in) average for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Saint-Martin-Boulogne in September

September tends to be one of the perfect months in Saint-Martin-Boulogne, with 20°C (68°F) in the afternoon and 13°C (55°F) overnight. September marks the summer season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Saint-Martin-Boulogne in September

The area enjoys a balanced 160 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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For a detailed overview over the year and the best time to visit France, check out our Saint-Martin-Boulogne's climate page.

Saint-Martin-Boulogne Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 44%  

Precipitation 74 mm (2.9 in)  

Rainy days 13 days  

Humidity 85% *  

Sunshine 160 hours *  

Percentage Sunshine *  

* Data from: Abbeville, France (66 KM, 41 Miles).

What to Wear in Saint-Martin-Boulogne in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Saint-Martin-Boulogne in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Saint-Martin-Boulogne's climate page.

More climate data for Saint-Martin-Boulogne

Temperature Rainfall Sunshine Humidity

See the full Saint-Martin-Boulogne climate overview or explore weather in France.