France · Sarthe
Sea temperature at Lac de Sille Le Guillaume
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 | 27.3 |
| Thu 3 | 26.8 |
| Fri 4 | 26.5 |
| Sat 5 | 26.6 |
| Sun 6 | 27.0 |
| Mon 7 | 27.5 |
| Tue 8 | 27.6 |
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 | 19 | — |
| Jun | 22 | — |
| Jul | 24 | — |
| Aug | 25 | — |
| Sep | 24 | — |
| Oct | 22 | — |
| Nov | 19 | — |
| Dec | 17 | — |
No measured in-season sea temperature has been published for Lac de Sille Le Guillaume 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
What is the sea temperature at Lac de Sille Le Guillaume today?
The figure above (around 27°C) is illustrative placeholder data shown because the live marine feed wasn't reachable — it will be replaced automatically once it is. That's the reading right off Sarthe.
When does Lac de Sille Le Guillaume have the warmest water?
The modeled climatology puts the comfortably-warm window (above 22°C) at June–October, with August typically the warmest point in that stretch. That applies to the water around Sarthe.
Is the sea temperature chart above measured or estimated?
For Lac de Sille Le Guillaume, the chart above shows a modeled estimate only, derived from latitude and season — no measured average yet. Some countries, Croatia's IZOR among them, also record the sea temperature at each official sample, plotted alongside the model where available.