On the beach
Right now
Sample dataIllustrative conditions — the live Open-Meteo marine feed wasn't reachable, so these are deterministic placeholder values that will be replaced automatically once the feed is available.
7-day outlook
Sample dataModeled placeholder forecast for demonstration — will be replaced by a live marine-weather feed.
Sea temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Sea temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 28.3 | 0.5 |
| Thu 3 | 28.1 | 0.5 |
| Fri 4 | 27.7 | 0.5 |
| Sat 5 | 27.2 | 0.5 |
| Sun 6 | 27.2 | 0.5 |
| Mon 7 | 27.6 | 0.5 |
| Tue 8 | 28.1 | 0.5 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Not classified2015
- 2016: Not classified2016
- 2017: Not classified2017
- 2018: Not classified2018
- 2019: Not classified2019
- 2020: Not classified2020
- 2021: Not classified2021
- 2022: Excellent2022
- 2023: Excellent2023
- 2024: Excellent2024
- 2025: Excellent2025
Excellent in the most recent season, and 4 of 4 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Not classified |
| 2016 | Not classified |
| 2017 | Not classified |
| 2018 | Not classified |
| 2019 | Not classified |
| 2020 | Not classified |
| 2021 | Not classified |
| 2022 | Excellent |
| 2023 | Excellent |
| 2024 | Excellent |
| 2025 | Excellent |
Typical sea temperature by month
Modeled estimatePlausible seasonal climatology derived from latitude, for illustration — not a measured average.
Monthly sea temperature
Typical range across the year, °C
View as table
| Month | Typical sea temp (°C) |
|---|---|
| Jan | 16 |
| Feb | 15 |
| Mar | 16 |
| Apr | 18 |
| May | 21 |
| Jun | 24 |
| Jul | 26 |
| Aug | 27 |
| Sep | 26 |
| Oct | 24 |
| Nov | 21 |
| Dec | 18 |
Location & nearby beaches
Nearby beaches
- Kagia3.9 kmNorth Aegean
- Aspropotamos - Pedi11 kmNorth Aegean
- Eftalou - Agioi Anargyroi12 kmNorth Aegean
- Molyvos - Psiriara16 kmNorth Aegean
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
Food, stays & town
- Nearest village: Κλειώ, about ~3.9 km away.
- 3 places to eat within 1 km Closest is The Cuckoo's Nest, about ~70 m away.
What kind of beach is this?
This beach belongs to a small coastal village. It's usually calmer than a resort or town beach, though a popular village spot can still fill up on the best summer days.
Estimated from OpenStreetMap surroundings data (ODbL).
Is the water clean at Tsonia?
Tsonia is a coastal bathing site with an official EU Bathing Water rating of Excellent for the 2025 season — the highest official classification under the EU bathing-water assessment. That annual classification comes from the EU Bathing Water Directive: national authorities test for two indicator bacteria, intestinal enterococci and E. coli, throughout the bathing season, then report the full-season results to the European Environment Agency (EEA) the following spring — the 2025 season's rating was published in spring 2026, and the 2026 season won't be rated until spring 2027. In addition to that yearly rating, some national authorities — for Croatia, the national environmental authority — publish individual water sample results during the season itself, ahead of the annual report. On site you'll find Sandy shore, Restaurant, and Parking. There's parking about ~140 m from the beach.
That rating has been consistent: every one of the 4 classified seasons on record has come back Excellent or Good. The most reliable swimming window here typically runs from July–September, with the sea usually at its warmest around August. Outside that window the water is cooler and often quieter. It's been a consistently reliable spot too — the rating has held at Excellent for 4 straight years. The nearest town, Κλειώ, is about ~3.9 km away.
That “Excellent” label comes from a full season of official water sampling, not a single test — it's one step on a four-point scale (Excellent, Good, Sufficient, Poor) reassessed once a year. Today's actual conditions can differ from the seasonal average, so for a live snapshot see the “Right now” and 7-day outlook panels above. There are 3 places to eat within a kilometre — The Cuckoo's Nest is the closest, about ~70 m away.
Frequently asked questions
Should you swim at Tsonia?
Tsonia is rated Excellent for 2025 — the top EU Bathing Water classification — with 4 of 4 classified seasons rating Excellent or Good, so yes. It's also held steady at Excellent for 4 straight years.
What is the sea temperature at Tsonia today?
Treat the ~28°C above as illustrative only — Tsonia's live marine feed was down when this page was generated, and the figure will be replaced with a real reading automatically once it's back. That's the reading right off North Aegean. On the modeled climatology here, August usually runs warmest.
When does Tsonia have the warmest water?
For swimming, July–September is usually the best call — that's the modeled window when the sea here runs warmest. That applies to the water around North Aegean. Within that window, August is typically the single warmest month.
Where does the water quality rating come from?
It's based on official water samples: authorities test for intestinal enterococci and E. coli through the season, then report the full-season results to the European Environment Agency each spring, which assigns one of four grades — Excellent, Good, Sufficient or Poor. A few national authorities, including Croatia's IZOR, also publish individual samples during the season itself, ahead of that annual report — that isn't yet available for Tsonia.
Is there parking near Tsonia?
By car, it's easy — parking is right by the beach. The nearest town is Κλειώ, about ~3.9 km away.