Weather in Grande-Synthe on 20 July 2026
Weather observations for 20 July 2026
The stored hourly record for Grande-Synthe on 20 July 2026 shows temperatures from +14.9°C to +20.5°C.
Key figures: precipitation 0.1 mm, wind 4 — 6 m/s, average humidity 65%.
+19.5°C
Hourly weather — 2026
Light rain
Hourly observations for a past date
Hourly weather — 2026
Nighttime: +14.9°C
Sea temperature: +21°C
Precipitation: 0.1 mm
Wind: 4 — 6 m/s
Humidity: 65%
Precipitation: 0.1 mm
Wind: 4 — 6 m/s
Humidity: 65%
Hourly observations
20 July
00:00
+15.8°C
4 m/s
01:00
+15.5°C
4 m/s
02:00
+15.2°C
4 m/s
03:00
+15.1°C
4 m/s
04:00
+15°C
4 m/s
05:00
+15.1°C
4 m/s
06:00
+14.9°C
4 m/s
07:00
+15.3°C
4 m/s
08:00
+16.4°C
4 m/s
09:00
+17.7°C
5 m/s
10:00
+18.6°C
5 m/s
11:00
+19.1°C
5 m/s
12:00
+19.5°C
5 m/s
0 mm
13:00
+19.8°C
5 m/s
0 mm
14:00
+20°C
6 m/s
15:00
+20.2°C
6 m/s
16:00
+20.3°C
6 m/s
17:00
+20.4°C
5 m/s
18:00
+20.5°C
6 m/s
19:00
+20°C
5 m/s
20:00
+19.4°C
5 m/s
21:00
+18.4°C
4 m/s
22:00
+17.4°C
4 m/s
23:00
+16.6°C
4 m/s
| July 20, 2026 |
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14:00
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15:00
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17:00
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19:00
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20:00
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21:00
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22:00
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23:00
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | +15.8°C | +15.5°C | +15.2°C | +15.1°C | +15°C | +15.1°C | +14.9°C | +15.3°C | +16.4°C | +17.7°C | +18.6°C | +19.1°C | +19.5°C | +19.8°C | +20°C | +20.2°C | +20.3°C | +20.4°C | +20.5°C | +20°C | +19.4°C | +18.4°C | +17.4°C | +16.6°C |
| Feels like | +15°C | +15°C | +14°C | +14°C | +14°C | +14°C | +14°C | +15°C | +16°C | +17°C | +18°C | +24.8°C | +24.6°C | +24.5°C | +24.5°C | +24.4°C | +24.4°C | +24.4°C | +24.4°C | +24.5°C | +24.7°C | +18°C | +17°C | +16°C |
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm |
| Humidity | 68% | 69% | 70% | 72% | 72% | 73% | 74% | 74% | 71% | 67% | 63% | 60% | 59% | 58% | 57% | 56% | 55% | 55% | 56% | 58% | 61% | 65% | 70% | 73% |
| Wind | 4 m/s | 4 m/s | 4 m/s | 4 m/s | 4 m/s | 4 m/s | 4 m/s | 4 m/s | 4 m/s | 5 m/s | 5 m/s | 5 m/s | 5 m/s | 5 m/s | 6 m/s | 6 m/s | 6 m/s | 5 m/s | 6 m/s | 5 m/s | 5 m/s | 4 m/s | 4 m/s | 4 m/s |
| Wind gusts | 7 m/s | 6 m/s | 6 m/s | 6 m/s | 5 m/s | 6 m/s | 6 m/s | 6 m/s | 7 m/s | 8 m/s | 9 m/s | 9 m/s | 9 m/s | 9 m/s | 10 m/s | 10 m/s | 10 m/s | 10 m/s | 10 m/s | 9 m/s | 9 m/s | 8 m/s | 8 m/s | 6 m/s |
| Wind direction | 8° (N) | 6° (N) | 5° (N) | 2° (N) | 1° (N) | 0° (N) | 356° (N) | 356° (N) | 359° (N) | 2° (N) | 5° (N) | 3° (N) | 6° (N) | 6° (N) | 9° (N) | 7° (N) | 9° (N) | 14° (NNE) | 19° (NNE) | 20° (NNE) | 22° (NNE) | 24° (NNE) | 27° (NNE) | 28° (NNE) |
| Pressure | 769 mmHg | 769 mmHg | 769 mmHg | 769 mmHg | 769 mmHg | 769 mmHg | 769 mmHg | 769 mmHg | 769 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg | 770 mmHg |
| Cloud cover | 37% | 41% | 24% | 28% | 59% | 71% | 85% | 94% | 78% | 74% | 89% | 95% | 93% | 70% | 42% | 31% | 36% | 6% | 9% | 24% | 6% | 4% | 1% | 0% |
| Visibility | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km | 16 km |
| UV index | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 4 | 6 | 6 | 5 | 4 | 2 | 1 | 0 | 0 | 0 | 0 |
| Rain chance | 0% | 5% | 0% | 0% | 5% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 20% | 20% | 5% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Snow chance | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Water temperature | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C | +21°C |
Sunrise
05:59
Duration
15 h 54 min
Sunset
21:53
Moonrise
13:33
Moonset
—
Moon phase
First Quarter
Illumination
34%
+18°C
Weather archive — latest year: 2025
Light drizzle
Weather archive — latest year: 2025
Nighttime: +16°C
Precipitation: 1.1 mm
Wind: 4 — 7 m/s
Humidity: 76%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 6 h |
| UV index | 5 | Cloud cover (avg.) | 76% |
| Pressure (avg.) | 753 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 204° ↓ (S) |
Sunrise
06:00
Duration
15 h 54 min
Sunset
21:54
Moonrise
01:01
Moonset
17:50
Moon phase
Waning Crescent
Illumination
26%
+19°C
Weather archive — for 2024 year
Partly Cloudy
Weather archive — for 2024 year
Nighttime: +16°C
Sea temperature: +18°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 12 h |
| UV index | 4 | Cloud cover (avg.) | 47% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +18°C |
| Feels like (avg.) | +19°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 272° ← (W) |
Sunrise
06:00
Duration
15 h 53 min
Sunset
21:53
Moonrise
22:02
Moonset
04:02
Moon phase
Waxing Gibbous
Illumination
97%
+17°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +15°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 71%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 6 h |
| UV index | 4 | Cloud cover (avg.) | 67% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 164° ↖ (NW) |
Sunrise
05:59
Duration
15 h 55 min
Sunset
21:54
Moonrise
08:46
Moonset
23:40
Moon phase
Waxing Crescent
Illumination
12%
+22°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +19°C
Precipitation: 0.1 mm
Wind: 6 — 7 m/s
Humidity: 62%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +25°C | Sun hours | 7 h |
| UV index | 6 | Cloud cover (avg.) | 51% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +23°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +24°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 233° ↙ (SW) |
Sunrise
06:00
Duration
15 h 54 min
Sunset
21:54
Moonrise
00:49
Moonset
14:18
Moon phase
Last Quarter
Illumination
50%
+18°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +15°C
Precipitation: 0 mm
Wind: 4 — 4 m/s
Humidity: 75%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 3% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 46° ↗ (NE) |
Sunrise
06:00
Duration
15 h 54 min
Sunset
21:54
Moonrise
18:12
Moonset
02:01
Moon phase
Waxing Gibbous
Illumination
73%
+16°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +14°C
Precipitation: 0 mm
Wind: 5 — 5 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 15 h |
| UV index | 4 | Cloud cover (avg.) | 26% |
| Pressure (avg.) | 766 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +16°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +16°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 18° ↑ (N) |
Sunrise
06:00
Duration
15 h 53 min
Sunset
21:53
Moonrise
05:21
Moonset
22:10
Moon phase
New Moon
Illumination
0%
Weather in Grande-Synthe on 20 July in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+20°C
|
+16°C
|
+18°C | 6 h | 5 | 76% | 4 — 7 m/s |
| 2024 |
+21°C
|
+16°C
|
+19°C | 12 h | 4 | 83% | 3 — 4 m/s |
| 2023 |
+20°C
|
+15°C
|
+17°C | 6 h | 4 | 71% | 2 — 3 m/s |
| 2022 |
+25°C
|
+19°C
|
+22°C | 7 h | 6 | 62% | 6 — 7 m/s |
| 2021 |
+21°C
|
+15°C
|
+18°C | 15 h | 5 | 75% | 4 — 4 m/s |
| 2020 |
+18°C
|
+14°C
|
+16°C | 15 h | 4 | 73% | 5 — 5 m/s |