Weather in Grande-Synthe on 6 August 2026
Preliminary outlook for 6 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +22°C and nighttime around +15°C, average precipitation 0.9 mm, wind around 5 m/s, humidity around 67%.
This is a climate-based estimate, not a precise long-range forecast. It is replaced by hourly data when the date enters the forecast window.
+18°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +16°C
Precipitation: 0 mm
Wind: 3 — 3 m/s
Humidity: 59%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 13 h |
| UV index | 5 | Cloud cover (avg.) | 28% |
| Pressure (avg.) | 769 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 292° ← (WNW) |
Sunrise
06:24
Duration
15 h 04 min
Sunset
21:28
Moonrise
20:40
Moonset
02:40
Moon phase
Waxing Gibbous
Illumination
83%
+20°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +17°C
Sea temperature: +19°C
Precipitation: 0 mm
Wind: 3 — 6 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 13 h |
| UV index | 6 | Cloud cover (avg.) | 14% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +19°C |
| Feels like (avg.) | +21°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 209° ↙ (SW) |
Sunrise
06:25
Duration
15 h 03 min
Sunset
21:28
Moonrise
08:34
Moonset
22:33
Moon phase
Waxing Crescent
Illumination
6%
+16°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +14°C
Precipitation: 3.1 mm
Wind: 10 — 11 m/s
Humidity: 74%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 4 h |
| UV index | 4 | Cloud cover (avg.) | 82% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +15°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +16°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 17 m/s | Wind direction (avg.) | 320° ↖ (NW) |
Sunrise
06:23
Duration
15 h 06 min
Sunset
21:29
Moonrise
23:31
Moonset
12:08
Moon phase
Waning Gibbous
Illumination
64%
+18°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +14°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 58%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 15% |
| Pressure (avg.) | 770 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 57° ↗ (NE) |
Sunrise
06:24
Duration
15 h 05 min
Sunset
21:29
Moonrise
16:16
Moonset
00:24
Moon phase
First Quarter
Illumination
59%
+17°C
Weather archive — for 2021 year
Patchy rain nearby
Weather archive — for 2021 year
Nighttime: +15°C
Precipitation: 2.2 mm
Wind: 8 — 11 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 10 h |
| UV index | 4 | Cloud cover (avg.) | 65% |
| Pressure (avg.) | 752 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 15 m/s | Wind direction (avg.) | 213° ↙ (SW) |
Sunrise
06:24
Duration
15 h 04 min
Sunset
21:28
Moonrise
03:49
Moonset
21:02
Moon phase
Waning Crescent
Illumination
4%
+22°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 56%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 15 h |
| UV index | 6 | Cloud cover (avg.) | 5% |
| Pressure (avg.) | 763 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 155° ↘ (SSE) |
Sunrise
06:24
Duration
15 h 04 min
Sunset
21:28
Moonrise
23:11
Moonset
09:23
Moon phase
Waning Gibbous
Illumination
81%
Weather in Grande-Synthe on 6 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+20°C
|
+16°C
|
+18°C | 13 h | 5 | 59% | 3 — 3 m/s |
| 2024 |
+24°C
|
+17°C
|
+20°C | 13 h | 6 | 72% | 3 — 6 m/s |
| 2023 |
+18°C
|
+14°C
|
+16°C | 4 h | 4 | 74% | 10 — 11 m/s |
| 2022 |
+22°C
|
+14°C
|
+18°C | 15 h | 5 | 58% | 3 — 4 m/s |
| 2021 |
+19°C
|
+15°C
|
+17°C | 10 h | 4 | 82% | 8 — 11 m/s |
| 2020 |
+27°C
|
+16°C
|
+22°C | 15 h | 6 | 56% | 3 — 4 m/s |