Saint-Omer

Pas-de-Calais, Hauts-de-France, France

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Current Weather

17°

Partly Cloudy

Feels Like: 17°

Min: 13°

Max: 19°

The next few hours will be overcast, with tomorrow reaching 19°C and dropping to 10°C. The coming days will be mostly cloudy

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Hourly Forecast

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Today
Tomorrow

Daylight Hours

07:42

Sunrise

19:44

Sunset

12 hours 1 minutes of sunlight today

Moon

Waxing Gibbous

17:35

Moonrise

01:03

Moonset

Daily Forecast

Today

13°
19°

Monday

19°

Tuesday

10°
21°

Wednesday

12°
20°

Thursday

13°
21°

Friday

14°
23°

Saturday

14°
19°

Sunday

12°
22°

Monday

14°
23°

Tuesday

15°
27°

Air Quality Data Available

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UV Index

No protection needed
1 Low
Low Extreme

Humidity

69% Comfortable
Low High

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Weather in Saint-Omer tomorrow, September 21, 2026

Saint-Omer may turn murky on September 21, 2026, with fog or mist reducing clarity at times. Early travel in particular may need extra care. Cloud leads the morning, peaking close to 100% near 05:00. Sunshine has little room until later in the day.

Temperatures climb from an overnight low near 9°C toward a daytime high of about 19°C. Moisture in the air spans 60%-96%, with the highest values around 07:00. A lighter breeze peaks around 14:00 near 2.1 km/h.

Afternoon skies stay clogged, peaking close to 100% near 12:00. The grey theme continues rather than clearing out. Visibility holds near 22.2 km, though it can fall to 2.0 km. Expect sunrise at 07:44, sunset at 19:42, and 11 hours 58 minutes of sunlight today overall.

The practical takeaway for Saint-Omer on September 21, 2026 is reduced clarity at times, so plan journeys with care near 19°C.

Frequently asked questions about weather in Saint-Omer

How warm does it get in Saint-Omer?

The warmest month in Saint-Omer is August, with average high temperatures of 23°C. The average temperature during this period is around 18°C.

How cold does it get in Saint-Omer?

The coldest month in Saint-Omer is January, with average low temperatures of 2°C. The average temperature during this period is around 5°C.

What is the wettest time of year in Saint-Omer?

The wettest month in Saint-Omer is October, with an average of 78mm of precipitation.

What is the driest time of year in Saint-Omer?

The driest month in Saint-Omer is April, with an average of 52mm of precipitation.

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Metric (°C, km/h)