Grande Synthe Weather Conditions

Current Temperature Level

overcast
19°C
21°C17°C
Cool

Overcast

Feels Like 15°C

Chances of Rain16%

Good

48AQI

Humidity

66%

Nowovercast19°16%7 AMovercast19°17%8 AMpatchy rain possible19°20%9 AMpatchy rain possible19°23%10 AMpatchy rain possible19°20%11 AMpatchy rain possible20°19%12 PMpatchy rain possible21°22%1 PMlight rain18°68%2 PMpatchy rain possible18°26%3 PMpatchy rain possible18°35%4 PMpatchy rain possible18°25%5 PMpatchy rain possible18°33%6 PMpatchy rain possible19°23%7 PMmoderate rain at times20°44%8 PMpatchy rain possible19°34%9 PMmoderate rain at times18°57%10 PMpatchy rain possible18°38%11 PMclear17°10%12 AMpatchy rain possible18°27%1 AMclear18°7%2 AMpartly cloudy18°8%3 AMclear17°4%4 AMclear17°5%5 AMclear16°7%
.

Skies may remain grey and overcast.

Last Updated: 2026-08-19 06:15 (Local Time)

Grande Synthe Weather Parameters

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Grande Synthe 10-Days Weather Forecast

See Monthly
Today19 Aug.


Patchy rain nearby

Patchy rain nearby

Occasional light rain is expected and humidity will be 75%, with winds at 25.2 km/h.


temperature icon

21°C  /  17°C

temperature iconHumi.75 %
temperature iconPrec.3.32 mm


Sunrise icon

Sunrise

06:44 AM

14hrs 20min

Sunset icon

Sunset

09:04 PM
Temperature (°C)
.
12 AMTime11 PM

Time

Condition

Temperature IconTemp

Humidity IconHumidity

UV IconUV

Wind IconWind Speed & Dir.

12 AM

OvercastOvercast

20 °C

84 %

0

24.5 kmph /  WSW

Feels Like IconFeels 17 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

1 AM

Patchy rain nearbyPatchy rain nearby

19 °C

83 %

0

20.9 kmph /  WSW

Feels Like IconFeels 18 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

2 AM

OvercastOvercast

20 °C

78 %

0

19.1 kmph /  WSW

Feels Like IconFeels 18 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

3 AM

OvercastOvercast

20 °C

71 %

0

22 kmph /  WSW

Feels Like IconFeels 17 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

4 AM

OvercastOvercast

20 °C

69 %

0

22.7 kmph /  WSW

Feels Like IconFeels 17 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

5 AM

OvercastOvercast

20 °C

68 %

0

23.4 kmph /  WSW

Feels Like IconFeels 16 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

6 AM

OvercastOvercast

19 °C

66 %

0

25.2 kmph /  WSW

Feels Like IconFeels 15 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

7 AM

OvercastOvercast

19 °C

67 %

0

24.8 kmph /  WSW

Feels Like IconFeels 15 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

8 AM

Patchy rain nearbyPatchy rain nearby

19 °C

70 %

0.1

24.8 kmph /  W

Feels Like IconFeels 15 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

9 AM

Patchy rain nearbyPatchy rain nearby

19 °C

76 %

0.5

23.8 kmph /  WSW

Feels Like IconFeels 15 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

10 AM

Patchy rain nearbyPatchy rain nearby

19 °C

71 %

0.9

22.7 kmph /  WSW

Feels Like IconFeels 16 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

11 AM

Patchy rain nearbyPatchy rain nearby

20 °C

65 %

2.3

24.1 kmph /  WSW

Feels Like IconFeels 16 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

12 PM

Patchy rain nearbyPatchy rain nearby

21 °C

64 %

1.9

24.5 kmph /  WSW

Feels Like IconFeels 17 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

1 PM

Light RainLight Rain

18 °C

80 %

4.1

19.4 kmph /  WSW

Feels Like IconFeels 16 °C

Temperature IconCover 100 %

Visibility IconVisibility 9 km

2 PM

Patchy rain nearbyPatchy rain nearby

18 °C

80 %

3

11.9 kmph /  WSW

Feels Like IconFeels 18 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

3 PM

Patchy rain nearbyPatchy rain nearby

18 °C

82 %

3.1

11.5 kmph /  SW

Feels Like IconFeels 18 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

4 PM

Patchy rain nearbyPatchy rain nearby

18 °C

81 %

1.8

9.4 kmph /  SW

Feels Like IconFeels 18 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

5 PM

Patchy rain nearbyPatchy rain nearby

18 °C

82 %

1.9

10.8 kmph /  SW

Feels Like IconFeels 18 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

6 PM

Patchy rain nearbyPatchy rain nearby

19 °C

75 %

0.5

13.3 kmph /  SW

Feels Like IconFeels 18 °C

Temperature IconCover 80 %

Visibility IconVisibility 10 km

7 PM

RainRain

20 °C

72 %

0.4

18.7 kmph /  SW

Feels Like IconFeels 17 °C

Temperature IconCover 71 %

Visibility IconVisibility 10 km

8 PM

Patchy rain nearbyPatchy rain nearby

19 °C

78 %

0.2

22 kmph /  WSW

Feels Like IconFeels 16 °C

Temperature IconCover 76 %

Visibility IconVisibility 9 km

9 PM

RainRain

18 °C

84 %

0

23.4 kmph /  SW

Feels Like IconFeels 15 °C

Temperature IconCover 88 %

Visibility IconVisibility 10 km

10 PM

Patchy rain nearbyPatchy rain nearby

18 °C

84 %

0

21.6 kmph /  SW

Feels Like IconFeels 15 °C

Temperature IconCover 71 %

Visibility IconVisibility 10 km

11 PM

ClearClear

17 °C

82 %

0

21.6 kmph /  SW

Feels Like IconFeels 15 °C

Temperature IconCover 2 %

Visibility IconVisibility 10 km

Temp19 °C


ConditionOvercast


Humidity66 %

Feels15 °C


Cover100 %


Visibility10 km

Wind Speed & Dir.25.2 kmph /  WSW


UV0

Grande Synthe 30-Days (August 2026) Weather Forecast

See Hourly
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny22°15°
2
Sunny24°17°
3
Sunny25°19°
4
Sunny27°20°
5
Sunny23°18°
6
Sunny20°16°
7
Sunny22°15°
8
Sunny25°15°
9
Sunny27°19°
10
Sunny22°18°
11
Sunny23°14°
12
Sunny27°16°
13
Sunny30°21°
14
Sunny28°22°
15
Sunny23°19°
16
Sunny21°18°
17
Blizzard22°-1°
18
Patchy rain nearby24°18°
19Today
Patchy rain nearby21°17°
20
Patchy rain nearby22°15°
21
Rain Shower20°16°
22
Patchy rain nearby18°15°
23
Sunny19°15°
24
Rain Shower16°15°
25
Sunny21°14°
26
Overcast20°16°
27
Heavy Rain21°15°
28
Rain20°15°
29
Rain Showers19°15°
30
Rain Showers20°15°
31
Rain Showers20°15°

AugustWeather Overview

No. of days:

Sunny

Sunny

18

Cloudy

Cloudy

0

Rainy

Rainy

9

Snowy

Snowy

0


The monthly weather averages in Grande Synthe consist of 18 sunny days, 0 cloudy days, 9 rainy days, and 0 snowy days.

Grande Synthe's Locations Weather Conditions


Locations
Temp
Condition
Humi.
UV
Wind Speed & Direction
19 °C
overcastOvercast
66%
0

25.2 kmph /  WSW

19 °C
overcastOvercast
66%
0

25.2 kmph /  WSW

19 °C
overcastOvercast
66%
0

25.2 kmph /  WSW

19 °C
overcastOvercast
66%
0

25.2 kmph /  WSW

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FAQs About Grande Synthe Weather Conditions


1. What is the current temperature in Grande Synthe today - 19 August 2026?

The current temperature in Grande Synthe is 19°C, with a feels-like temperature of 15°C. Today's forecast shows a high of 21°C and a low of 17°C, giving a 4 degree swing through the day as of 06:15 AM 19 August 2026.

2. What are the current weather parameters in Grande Synthe today?

Here is a complete overview of Grande Synthe's current weather conditions as of 06:15 AM 19 August 2026: Condition : Overcast Temperature : 19°C Cool (Feels like 15°C) Humidity : 66% Wind Speed : 25.2 km/h from WSW (247 degrees), Gust 11 m/s UV Index : 0 (Low Air Pressure : 1007 mb Cloud Cover : 100% Visibility : 10 km Precipitation : 0 mm (75% chance of rain)

3. What is the 10-day weather forecast for Grande Synthe from 06:15 AM 19 August 2026?

From 06:15 AM 19 August 2026, Grande Synthe's 10-day forecast shows this trend: Today (Aug. 19) : Temp. 19°C, Hum. 75% and Patchy rain nearby condition. Thursday (Aug. 20) : Temp. 19°C, Hum. 66% and Patchy rain nearby condition. Friday (Aug. 21) : Temp. 17°C, Hum. 72% and Patchy rain nearby condition. Saturday (Aug. 22) : Temp. 17°C, Hum. 69% and Patchy rain nearby condition. Sunday (Aug. 23) : Temp. 17°C, Hum. 61% and Sunny condition. Monday (Aug. 24) : Temp. 18°C, Hum. 59% and Overcast condition. Tuesday (Aug. 25) : Temp. 16°C, Hum. 82% and Rain Shower condition. Wednesday (Aug. 26) : Temp. 18°C, Hum. 69% and Overcast condition. Thursday (Aug. 27) : Temp. 18°C, Hum. 74% and Heavy Rain condition. Friday (Aug. 28) : Temp. 18°C, Hum. 74% and Rain condition.

4. Will it rain in Grande Synthe today?

As of 06:15 AM 19 August 2026, there is a 17% chance of rainfall in Grande Synthe later today around 2026-08-19 07:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.

5. What is the monthly weather forecast for Grande Synthe in August 2026?

August 2026 in Grande Synthe is forecast to have 18 sunny days, 9 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around -1°C to highs of 30°C.

6. How does the weather in Grande Synthe affect air quality?

Weather directly impacts air quality in Grande Synthe. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.