Greece · Ionian Islands
Sea temperature at Agios Mathaios
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 | 26.4 |
| Thu 3 | 26.0 |
| Fri 4 | 25.5 |
| Sat 5 | 25.2 |
| Sun 6 | 25.4 |
| Mon 7 | 25.9 |
| Tue 8 | 26.3 |
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 | 16 | — |
| Feb | 15 | — |
| Mar | 16 | — |
| Apr | 18 | — |
| May | 21 | — |
| Jun | 24 | — |
| Jul | 26 | — |
| Aug | 26 | — |
| Sep | 26 | — |
| Oct | 23 | — |
| Nov | 20 | — |
| Dec | 18 | — |
No measured in-season sea temperature has been published for Agios Mathaios 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 temperature is the sea at Agios Mathaios right now?
The figure above (around 26°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 Ionian Islands.
When is the best time to swim at Agios Mathaios?
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 Ionian Islands.
Is the sea temperature chart above measured or estimated?
For Agios Mathaios, 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.