Greece · Crete
Sea temperature at Grammeno
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 | 25.1 |
| Thu 3 | 24.6 |
| Fri 4 | 24.4 |
| Sat 5 | 24.7 |
| Sun 6 | 25.2 |
| Mon 7 | 25.6 |
| Tue 8 | 25.5 |
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 | 17 | — |
| Feb | 16 | — |
| Mar | 17 | — |
| Apr | 19 | — |
| May | 22 | — |
| Jun | 24 | — |
| Jul | 26 | — |
| Aug | 27 | — |
| Sep | 27 | — |
| Oct | 25 | — |
| Nov | 22 | — |
| Dec | 19 | — |
No measured in-season sea temperature has been published for Grammeno 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's the current water temperature at Grammeno?
Treat the ~25°C above as illustrative only: the live marine feed for Grammeno was unreachable when this page was built, and the figure updates automatically once it's back. That's the reading right off Crete.
When is the best time to swim at Grammeno?
June–October, when the modeled water temperature is typically above 22°C — widely considered comfortably warm for swimming. August usually runs warmest. That applies to the water around Crete.
Is the sea temperature chart above measured or estimated?
Not yet for Grammeno — the chart above shows a modeled estimate derived from latitude and season, not a measured average. Some countries (Croatia, via IZOR) also publish the sea temperature recorded at each official water sample; when that data exists for a beach it's plotted alongside the modeled curve.