Grande-Synthe weather — 10-day forecast

Temperature, rain, wind and feels-like in Grande-Synthe, hour by hour and over 10 days, with the seasonal normal for context.

Now

Reading from 05:00 · Meteo-France AROME 1.3 km model

14 °C

Clear sky

Feels like 13 °C

7.1 km/hforce 1

Next 12 h

  • 0515°
  • 0614°
  • 06:27Sunrise
  • 0713°
  • 0815°
  • 0917°
  • 1020°
  • 1123°
  • 1224°
  • 1326°
  • 1427°
  • 1525°
  • 1625°
  • 1725°

13°07:00 27°14:00

Humidity
72 %
Dew point
9 °C
Gusts
14.4 km/h
Clouds
0 %
Pressure
1,022 hPa

Grid point 0.5 km away · 1.3 km grid · elevation 1 m

Air quality

The European air-quality index for the city, and the pollutants that set it.

Reading from 08:00
25
Fair

Index set by PM2.5

PM2.5
12.7µg/m³
PM10
15.0µg/m³
Ozone
30.4µg/m³
Nitrogen dioxide
15.8µg/m³
Sulphur dioxide
3.1µg/m³
Carbon monoxide
168.0µg/m³
Dust (AOD)
0.01

Generated using Copernicus Atmosphere Monitoring Service information

Hour by hour

Step-by-step detail: temperature, wind, cloud cover and ultraviolet.

Estimated from a deterministic model, not an ensemble probability.
°C

9 days

Each day's extremes and the chance of rain, out to the end of the run.

13° → 31°

Rain probability (> 1 mm): 50 ECMWF ensemble members.

  • Today

    Partly cloudy

    27°

    13°

  • Sun

    Partly cloudy

    30°

    16°

  • Mon

    Mainly clear

    25°

    18°

  • Tue

    Clear sky

    25°

    16°

  • Wed

    Clear sky

    30°

    16°

  • Thu

    Mainly clear

    31°

    21°

  • Fri

    Clear sky

    29°

    17°

  • Sat

    Light drizzle2 mm

    23°

    20°

  • Sun

    Light drizzle4 mm

    22°

    19°

Sun and UV

Sunrise, sunset, day length and ultraviolet intensity.

Max UV7high
Sunrise
06:27
Daylight
14 h 59
Sunset
21:26

Radiation · 25.3 MJ/m²

Sea state

Sea state at the marine grid point closest to the city.

0.4 mperiod 7 s 6°

Significant height: the mean of the highest third of waves. Individual waves reach about twice it.

Data: ECMWF

Today in Grande-Synthe the mean temperature will be 20.5 °C — +2.6 °C against the normal for 8 August, measured from 1940 to 2026. (1,290 obs.)

Grande-Synthe climate — normals and trends