Weather in Cayeux-sur-Mer on 17 August 2026
Preliminary outlook for 17 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +24°C and nighttime around +14°C, average precipitation 0.5 mm, wind around 4 m/s, humidity around 73%.
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.
+19°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +11°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 64%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 2% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +9°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 54° ↗ (ENE) |
Sunrise
06:46
Duration
14 h 23 min
Sunset
21:09
Moonrise
Does not rise today
Moonset
16:57
Moon phase
Last Quarter
Illumination
37%
+19°C
Weather archive — for 2024 year
Partly Cloudy
Weather archive — for 2024 year
Nighttime: +16°C
Sea temperature: +18°C
Precipitation: 0.1 mm
Wind: 3 — 4 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 14 h |
| UV index | 4 | Cloud cover (avg.) | 32% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | +18°C |
| Feels like (avg.) | +19°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 277° ← (W) |
Sunrise
06:47
Duration
14 h 21 min
Sunset
21:08
Moonrise
20:32
Moonset
03:03
Moon phase
Waxing Gibbous
Illumination
86%
+20°C
Weather archive — for 2023 year
Partly Cloudy
Weather archive — for 2023 year
Nighttime: +15°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 70%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 37% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +20°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 64° ↗ (ENE) |
Sunrise
06:46
Duration
14 h 24 min
Sunset
21:10
Moonrise
07:50
Moonset
22:01
Moon phase
Waxing Crescent
Illumination
1%
+20°C
Weather archive — for 2022 year
Patchy rain nearby
Weather archive — for 2022 year
Nighttime: +16°C
Precipitation: 0.1 mm
Wind: 3 — 4 m/s
Humidity: 70%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 7 h |
| UV index | 5 | Cloud cover (avg.) | 57% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 84° → (ESE) |
Sunrise
06:46
Duration
14 h 23 min
Sunset
21:09
Moonrise
23:32
Moonset
13:24
Moon phase
Waning Gibbous
Illumination
61%
+16°C
Weather archive — for 2021 year
Cloudy
Weather archive — for 2021 year
Nighttime: +13°C
Precipitation: 0.6 mm
Wind: 4 — 5 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 8 h |
| UV index | 5 | Cloud cover (avg.) | 68% |
| Pressure (avg.) | 765 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.) | 11 m/s | Wind direction (avg.) | 303° ← (WNW) |
Sunrise
06:46
Duration
14 h 23 min
Sunset
21:09
Moonrise
17:14
Moonset
00:37
Moon phase
First Quarter
Illumination
61%
+18°C
Weather archive — for 2020 year
Moderate rain at times
Weather archive — for 2020 year
Nighttime: +15°C
Precipitation: 2 mm
Wind: 4 — 4 m/s
Humidity: 83%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 14 h |
| UV index | 4 | Cloud cover (avg.) | 61% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 220° ↙ (SW) |
Sunrise
06:47
Duration
14 h 21 min
Sunset
21:08
Moonrise
04:18
Moonset
20:45
Moon phase
Waning Crescent
Illumination
1%
Weather in Cayeux-sur-Mer on 17 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+27°C
|
+11°C
|
+19°C | 15 h | 5 | 64% | 4 — 6 m/s |
| 2024 |
+24°C
|
+16°C
|
+19°C | 14 h | 4 | 75% | 3 — 4 m/s |
| 2023 |
+27°C
|
+15°C
|
+20°C | 14 h | 6 | 70% | 3 — 4 m/s |
| 2022 |
+26°C
|
+16°C
|
+20°C | 7 h | 5 | 70% | 3 — 4 m/s |
| 2021 |
+18°C
|
+13°C
|
+16°C | 8 h | 5 | 73% | 4 — 5 m/s |
| 2020 |
+20°C
|
+15°C
|
+18°C | 14 h | 4 | 83% | 4 — 4 m/s |