Cayeux-sur-Mer Sea Temperature Today: 30-Day Water Forecast
The sea temperature in Cayeux-sur-Mer today is +21°C. Over the next 30 days, the water temperature is expected to stay between +20°C and +21°C. The water is usable for swimming, but it can feel cool during longer swims. For a shorter view, open the 14-day sea temperature forecast.
Daily air temperature for the month
Day +21°C
Night +13°C
Daily sea water temperature for the month
Water +21°C
Tap a date to open detailed daily weather
| July | Day | Night | Sea t° | Wind | Precipitation | Humidity |
|---|---|---|---|---|---|---|
| 20Mon |  +21°C |  +13°C | +21°C | 7 m/s, NNE | 0 mm | 61% |
| 21Tue | +22°C | +13°C | +20°C | 6–7 m/s, NNE | 0.2 mm | 67% |
| 22Wed | +21°C |  +13°C | +20°C | 4 m/s, N | 0.1 mm | 74% |
| 23Thu |  +21°C | +14°C | +20°C | 4 m/s, N | 0 mm | 70% |
| 24Fri | +22°C | +14°C | +21°C | 3–4 m/s, W | 0 mm | 71% |
| 25Sat | +23°C |  +15°C | +21°C | 7 m/s, W | 0.3 mm | 72% |
| 26Sun |  +20°C | +18°C | +21°C | 7 m/s, W | 1.6 mm | 82% |
| 27Mon | +21°C | +16°C | +21°C | 7 m/s, W | 0.3 mm | 76% |
| 28Tue | +22°C | +16°C | +21°C | 6 m/s, W | 0.8 mm | 75% |
| Further values are multi-year averaged climate | ||||||
| 29Wed | +23°C | +14°C | +21°C | 4 m/s | 0 mm | 68% |
| 30Thu | +24°C | +14°C | +21°C | 4 m/s | 0.1 mm | 70% |
| 31Fri | +25°C | +16°C | +21°C | 5 m/s | 1.2 mm | 77% |
| 1Sat |  +22°C | +15°C | +21°C | 4 m/s | 0.2 mm | 80% |
| 2Sun | +21°C | +14°C | +21°C | 5 m/s | 1.1 mm | 77% |
| 3Mon | +22°C | +14°C | +21°C | 4 m/s | 0.6 mm | 78% |
| 4Tue |  +22°C | +14°C | +21°C | 3 m/s | 0 mm | 75% |
| 5Wed | +23°C | +13°C | +21°C | 4 m/s | 0.3 mm | 70% |
| 6Thu | +24°C | +13°C | +21°C | 4 m/s | 0.3 mm | 67% |
| 7Fri | +24°C | +13°C | +21°C | 4 m/s | 0.4 mm | 65% |
| 8Sat | +25°C | +15°C | +21°C | 4 m/s | 0 mm | 67% |
| 9Sun | +25°C | +15°C | +21°C | 4 m/s | 0.6 mm | 68% |
| 10Mon | +28°C | +15°C | +21°C | 3 m/s | 0 mm | 66% |
| 11Tue | +30°C | +17°C | +21°C | 3 m/s | 0 mm | 57% |
| 12Wed | +30°C | +18°C | +21°C | 4 m/s | 0.2 mm | 60% |
| 13Thu | +26°C | +17°C | +21°C | 3 m/s | 0.6 mm | 65% |
| 14Fri | +26°C | +16°C | +21°C | 3 m/s | 0.8 mm | 66% |
| 15Sat | +25°C | +16°C | +21°C | 3 m/s | 0 mm | 73% |
| 16Sun | +24°C | +15°C | +21°C | 3 m/s | 1.2 mm | 73% |
| 17Mon | +24°C | +14°C | +21°C | 4 m/s | 0.5 mm | 72% |
| 18Tue | +24°C |  +15°C | +21°C | 4 m/s | 0 mm | 75% |
| 19Wed | +24°C | +15°C | +21°C | 4 m/s | 0.8 mm | 73% |
Sea water temperature by months
Water +17°C
Day and night air temperature
Day +23°C
Night +14°C
Weather minimums and maximums in Cayeux-sur-Mer for a month
- Warmest day: 11 August, +30°C
- Coldest night: 20 July, +13°C
- Days with precipitation in a month: 21
- Precipitation for a month: 12.2 mm
- Rainiest day in a month: 26 July
- Maximum precipitation amount: 26 July 1.6 mm
- Highest sea water temperature: 20 July, +21°C
- Lowest sea water temperature: 21 July, +20°C