Carnac Sea Temperature Today: 30-Day Water Forecast
The sea temperature in Carnac today is +22°C. Over the next 30 days, the water temperature is expected to stay between +21°C and +23°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 +25°C
Night +15°C
Daily sea water temperature for the month
Water +22°C
Tap a date to open detailed daily weather
| July | Day | Night | Sea t° | Wind | Precipitation | Humidity |
|---|---|---|---|---|---|---|
| 20Mon |  +25°C |  +15°C | +22°C | 8 m/s, NE | 0 mm | 54% |
| 21Tue | +26°C | +16°C | +22°C | 7 m/s, NE | 0 mm | 59% |
| 22Wed | +27°C | +16°C | +22°C | 5–6 m/s, NE | 0 mm | 61% |
| 23Thu | +27°C | +17°C | +22°C | 4 m/s, ESE | 0 mm | 62% |
| 24Fri |  +26°C |  +17°C | +22°C | 4 m/s, SE | 0 mm | 62% |
| 25Sat | +24°C | +17°C | +23°C | 9 m/s, WNW | 0.2 mm | 71% |
| 26Sun |  +22°C | +18°C | +22°C | 8 m/s, WNW | 0.1 mm | 81% |
| 27Mon | +23°C | +15°C | +21°C | 6 m/s, WNW | 0.1 mm | 75% |
| 28Tue | +23°C | +15°C | +21°C | 5 m/s, W | 0 mm | 73% |
| Further values are multi-year averaged climate | ||||||
| 29Wed | +23°C | +15°C | +21°C | 4 m/s | 0.9 mm | 74% |
| 30Thu | +25°C | +16°C | +21°C | 5 m/s | 0.1 mm | 72% |
| 31Fri | +23°C | +16°C | +21°C | 5 m/s | 0.1 mm | 79% |
| 1Sat | +23°C | +16°C | +21°C | 4 m/s | 0.1 mm | 79% |
| 2Sun | +22°C | +14°C | +21°C | 5 m/s | 0.2 mm | 76% |
| 3Mon |  +22°C | +15°C | +21°C | 5 m/s | 0.4 mm | 78% |
| 4Tue | +23°C | +15°C | +21°C | 4 m/s | 0.2 mm | 76% |
| 5Wed | +22°C | +14°C | +21°C | 5 m/s | 0.4 mm | 71% |
| 6Thu | +23°C | +14°C | +21°C | 5 m/s | 0.2 mm | 71% |
| 7Fri | +24°C | +15°C | +21°C | 5 m/s | 0.2 mm | 64% |
| 8Sat | +24°C | +15°C | +21°C | 5 m/s | 0 mm | 68% |
| 9Sun | +26°C | +16°C | +21°C | 5 m/s | 0.1 mm | 71% |
| 10Mon | +27°C | +16°C | +21°C | 4 m/s | 0 mm | 69% |
| 11Tue | +28°C | +18°C | +21°C | 4 m/s | 0.7 mm | 67% |
| 12Wed | +26°C | +17°C | +21°C | 4 m/s | 0.5 mm | 70% |
| 13Thu | +24°C | +17°C | +21°C | 4 m/s | 0.1 mm | 73% |
| 14Fri | +23°C | +16°C | +21°C | 4 m/s | 0.6 mm | 77% |
| 15Sat | +24°C | +16°C | +21°C | 4 m/s | 0.1 mm | 74% |
| 16Sun | +24°C |  +17°C | +21°C | 5 m/s | 1.5 mm | 74% |
| 17Mon | +23°C | +16°C | +21°C | 4 m/s | 0.3 mm | 74% |
| 18Tue | +23°C | +16°C | +21°C | 4 m/s | 0.2 mm | 70% |
| 19Wed | +21°C | +16°C | +21°C | 5 m/s | 1.6 mm | 81% |
Sea water temperature by months
Water +19°C
Day and night air temperature
Day +23°C
Night +15°C
Weather minimums and maximums in Carnac for a month
- Warmest day: 11 August, +28°C
- Coldest night: 2 August, +14°C
- Days with precipitation in a month: 23
- Precipitation for a month: 8.9 mm
- Rainiest day in a month: 19 August
- Maximum precipitation amount: 19 August 1.6 mm
- Highest sea water temperature: 25 July, +23°C
- Lowest sea water temperature: 27 July, +21°C