Weather in Grande-Synthe on 5 August 2026
Preliminary outlook for 5 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +21°C and nighttime around +15°C, average precipitation 0.4 mm, wind around 5 m/s, humidity around 70%.
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: 7 — 8 m/s
Humidity: 63%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 11% |
| Pressure (avg.) | 766 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 294° ← (WNW) |
Sunrise
06:23
Duration
15 h 07 min
Sunset
21:30
Moonrise
20:01
Moonset
01:45
Moon phase
Waxing Gibbous
Illumination
76%
+19°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +14°C
Sea temperature: +19°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 7% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +19°C |
| Feels like (avg.) | +18°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 255° ↙ (WSW) |
Sunrise
06:23
Duration
15 h 07 min
Sunset
21:30
Moonrise
07:14
Moonset
22:20
Moon phase
New Moon
Illumination
0%
+15°C
Weather archive — for 2023 year
Patchy rain nearby
Weather archive — for 2023 year
Nighttime: +14°C
Precipitation: 2.6 mm
Wind: 6 — 7 m/s
Humidity: 87%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +16°C | Sun hours | 1 h |
| UV index | 4 | Cloud cover (avg.) | 79% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +13°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 187° ↓ (SSW) |
Sunrise
06:22
Duration
15 h 09 min
Sunset
21:31
Moonrise
23:17
Moonset
10:41
Moon phase
Waning Gibbous
Illumination
71%
+18°C
Weather archive — for 2022 year
Cloudy
Weather archive — for 2022 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 60%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 12 h |
| UV index | 5 | Cloud cover (avg.) | 49% |
| Pressure (avg.) | 766 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 165° ↓ (S) |
Sunrise
06:22
Duration
15 h 09 min
Sunset
21:31
Moonrise
14:57
Moonset
00:07
Moon phase
First Quarter
Illumination
51%
+17°C
Weather archive — for 2021 year
Partly Cloudy
Weather archive — for 2021 year
Nighttime: +14°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 12 h |
| UV index | 5 | Cloud cover (avg.) | 38% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 213° ↓ (SSW) |
Sunrise
06:23
Duration
15 h 07 min
Sunset
21:30
Moonrise
02:57
Moonset
20:21
Moon phase
Waning Crescent
Illumination
11%
+19°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +14°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 66%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 21% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 241° ↙ (SW) |
Sunrise
06:23
Duration
15 h 07 min
Sunset
21:30
Moonrise
22:52
Moonset
08:06
Moon phase
Waxing Gibbous
Illumination
88%
Weather in Grande-Synthe on 5 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+20°C
|
+16°C
|
+18°C | 15 h | 5 | 63% | 7 — 8 m/s |
| 2024 |
+23°C
|
+14°C
|
+19°C | 15 h | 5 | 71% | 3 — 4 m/s |
| 2023 |
+16°C
|
+14°C
|
+15°C | 1 h | 4 | 87% | 6 — 7 m/s |
| 2022 |
+22°C
|
+16°C
|
+18°C | 12 h | 5 | 60% | 5 — 6 m/s |
| 2021 |
+21°C
|
+14°C
|
+17°C | 12 h | 5 | 73% | 3 — 4 m/s |
| 2020 |
+26°C
|
+14°C
|
+19°C | 15 h | 5 | 66% | 5 — 6 m/s |