Saint-Omer Weather in September

In Saint-Omer, September brings pleasant daytime temperatures around 20°C (68°F), with nights cooling to 12°C (54°F). Expect quite a bit of rainfall this month.

Rainfall in Saint-Omer in September

Analyzing past climate data, one can expect approximately 15 days of rain, averaging 65 mm (2.6 in). Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Saint-Omer in September

September tends to be one of the perfect months in Saint-Omer, with 20°C (68°F) in the afternoon and 12°C (54°F) overnight. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 12°C (54°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Saint-Omer in September

The area enjoys a moderate level of sunlight, with around 152 hours. It's a good balance between sunny and cloudy days.

If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Saint-Omer.

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

Saint-Omer Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 51%  

Precipitation 65 mm (2.6 in)  

Rainy days 15 days  

Humidity 83% *  

Sunshine 152 hours *  

Percentage Sunshine *  

* Data from: Lille, France (58 KM, 36 Miles).

What to Wear in Saint-Omer in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Saint-Omer in September

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

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

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-Omer's climate page.

More climate data for Saint-Omer

Temperature Rainfall Sunshine Humidity

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