France · Loire
Sea temperature at Ret.grangent - Vigie Mouette
Warm and pleasant for swimming
Sample dataUpdated hourly from the live marine forecast. See the 12-month typical range and, where available, real measured readings further down the page.
7-day outlook
Sample dataModeled placeholder forecast for demonstration — will be replaced by a live marine-weather feed.
Sea temperature
Next 7 days, °C
View as table
| Day | Sea temp (°C) |
|---|---|
| Wed 2 | 26.8 |
| Thu 3 | 26.7 |
| Fri 4 | 26.2 |
| Sat 5 | 25.7 |
| Sun 6 | 25.7 |
| Mon 7 | 26.0 |
| Tue 8 | 26.5 |
Sea temperature by month
Modeled climatology derived from latitude and season.
Typical vs. measured sea temperature
12-month view, °C — modeled line vs. measured sample averages
View as table
| Month | Modeled (°C) | Measured avg. (°C) |
|---|---|---|
| Jan | 15 | — |
| Feb | 14 | — |
| Mar | 15 | — |
| Apr | 17 | — |
| May | 20 | — |
| Jun | 23 | — |
| Jul | 25 | — |
| Aug | 25 | — |
| Sep | 25 | — |
| Oct | 23 | — |
| Nov | 20 | — |
| Dec | 17 | — |
No measured in-season sea temperature has been published for Ret.grangent - Vigie Mouette yet — the chart above shows the modeled climatology only. Some countries (Croatia, via IZOR) also record the sea temperature at each official water sample; check the water quality page for this beach's sampling status.
Frequently asked questions
Is the sea warm at Ret.grangent - Vigie Mouette today?
That ~26°C figure is a placeholder, not a live reading — Ret.grangent - Vigie Mouette's marine feed couldn't be reached, and it'll be swapped for the real value automatically once it responds again. That's the reading right off Loire.
What's the ideal time of year to swim at Ret.grangent - Vigie Mouette?
For water above the comfortably-warm 22°C mark, target June–October — August is typically the high point of that window on the modeled curve. That applies to the water around Loire.
Is the sea temperature chart above measured or estimated?
Estimated, not measured, for Ret.grangent - Vigie Mouette: the chart above models from latitude and season. Some national authorities (Croatia, via IZOR) additionally publish the sea temperature at each official sample, shown alongside the modeled curve when that data exists.