Live Weather & Forecast
Weather in Grande-Synthe
Hauts-de-France, France · Real-time conditions & 3-day outlook
11°C
Feels like 9°C
52°F / Feels 48°F
Partly cloudy
Grande-Synthe, Hauts-de-France
🌞 Daytime
Updated: 2026-04-16 07:45
Humidity
94%
Wind
16.2 km/h SW
Wind Gust
28.8 km/h
Pressure
1020 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
8°C
Wind Degree
215°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
216.9 μg/m³
NO₂
13.1 μg/m³
O₃
67 μg/m³
SO₂
7.9 μg/m³
PM 2.5
10.4 μg/m³
PM 10
18.6 μg/m³
Today's Hourly Forecast
24-hour breakdown for Grande-Synthe, Hauts-de-France
12 AM
12°
Clear
1 AM
11°
Clear
2 AM
10°
Clear
3 AM
10°
Clear
4 AM
10°
Clear
5 AM
10°
Partly Cloudy
6 AM
10°
Partly Cloudy
7 AM
11°
Partly cloudy
8 AM
10°
Overcast
9 AM
11°
Sunny
10 AM
12°
Sunny
11 AM
13°
Partly Cloudy
12 PM
13°
Sunny
1 PM
14°
Sunny
2 PM
14°
Sunny
3 PM
14°
Sunny
4 PM
14°
Partly Cloudy
5 PM
14°
Partly Cloudy
6 PM
14°
Sunny
7 PM
13°
Partly Cloudy
8 PM
12°
Cloudy
9 PM
12°
Cloudy
10 PM
11°
Cloudy
11 PM
11°
Partly Cloudy
3-Day Forecast
Daily overview for Grande-Synthe, Hauts-de-France
Today
Partly Cloudy
14°
/
10°
🌧️ 0% chance of rain
💧 Avg. humidity: 79%
💨 Max wind: 20.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:54 AM
🌇 Sunset: 08:48 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Partly Cloudy
15°
/
11°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 20.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:52 AM
🌇 Sunset: 08:50 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Patchy rain nearby
13°
/
10°
🌧️ 83% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 15.5 km/h
🌧️ Total precip: 0.7 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:50 AM
🌇 Sunset: 08:51 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Best Time to Visit Grande-Synthe
Plan your trip to Grande-Synthe, France around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Grande-Synthe?
Current conditions in Grande-Synthe: Partly cloudy, temperature 11°C, humidity 94%.
What is the best time to visit Grande-Synthe?
The best time to visit Grande-Synthe is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Grande-Synthe?
Grande-Synthe is located at approximately 51° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Grande-Synthe?
The wettest period in Grande-Synthe is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Grande-Synthe?
For visits to Grande-Synthe during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Grande-Synthe in?
Grande-Synthe is located in France, in the state of Hauts-de-France.
What are the public holidays in Grande-Synthe in 2026?
View the 2026 public holidays for Grande-Synthe on our Holidays page.
What are the GPS coordinates used for the weather forecast in Grande-Synthe?
The weather forecast for Grande-Synthe uses coordinates 51.0135, 2.303.