On the beach
Right now
Live conditions from Open-Meteo, refreshed hourly.
7-day outlook
7-day marine forecast from Open-Meteo.
Sea temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Sea temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 26.6 | 0.9 |
| Thu 3 | 26.5 | 1.0 |
| Fri 4 | 26.4 | 1.0 |
| Sat 5 | 26.1 | 0.9 |
| Sun 6 | 26.3 | 0.4 |
| Mon 7 | 26.5 | 0.8 |
| Tue 8 | 26.2 | 1.2 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Excellent2015
- 2016: Excellent2016
- 2017: Excellent2017
- 2018: Excellent2018
- 2019: Excellent2019
- 2020: Excellent2020
- 2021: Excellent2021
- 2022: Excellent2022
- 2023: Excellent2023
- 2024: Excellent2024
- 2025: Excellent2025
Excellent in the most recent season, and 11 of 11 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Excellent |
| 2016 | Excellent |
| 2017 | Excellent |
| 2018 | Excellent |
| 2019 | Excellent |
| 2020 | Excellent |
| 2021 | Excellent |
| 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 | 16 |
| Mar | 17 |
| Apr | 19 |
| May | 21 |
| Jun | 24 |
| Jul | 26 |
| Aug | 27 |
| Sep | 26 |
| Oct | 24 |
| Nov | 21 |
| Dec | 18 |
Location & nearby beaches
Nearby beaches
- Legraina Anatolika2.6 kmAttica
- Legraina Dytika3.2 kmAttica
- Limani Passa3.7 kmAttica
- Pountazeza4.5 kmAttica
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: KTEL Cape Sounio, about ~400 m away.
Food, stays & town
- Nearest village: Λεγρενά, about ~3.0 km away.
- 3 places to eat within 1 km Closest is Ακρογιάλι, about ~110 m away.
- 4 places to stay mapped nearby Closest is Aegeon Beach, 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 Sounio?
Sounio 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. You can park about ~110 m away.
That rating has been consistent: every one of the 11 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 11 straight years. Λεγρενά — the closest town — sits about ~3.0 km from here.
Worth remembering: “Excellent” isn't a live reading, it's an annual grade — Excellent, Good, Sufficient or Poor — set once a year from that season's water samples and describing the average, not this afternoon's conditions. For what the sea is doing right now, check the “Right now” panel and 7-day outlook above. It sits in Attica. There are 3 places to eat within a kilometre — Ακρογιάλι is the closest, about ~110 m away.
Frequently asked questions
Is Sounio a safe beach for swimming?
Generally, yes. Sounio's 2025 EU Bathing Water rating is Excellent — the highest tier — backed by 11 of 11 classified seasons rated Excellent or Good. It's also held steady at Excellent for 11 straight years.
How warm is the sea at Sounio right now?
Checking in on Sounio right now: the water is around 27°C, per the latest reading — the “Right now” panel above tracks it live. That's the reading right off Attica.
What's the ideal time of year to swim at Sounio?
The most reliable stretch for warm water runs through July–September, based on the modeled climatology. That applies to the water around Attica.
What does the water quality rating actually measure?
The annual classification — Excellent, Good, Sufficient or Poor — is built from a full season of official testing for intestinal enterococci and E. coli, reported to the European Environment Agency each spring. Some national authorities (Croatia's IZOR among them) also publish individual samples during the season itself; Sounio isn't yet covered by that in-season feed.
How do you get to Sounio?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is KTEL Cape Sounio, about ~400 m away. The nearest town is Λεγρενά, about ~3.0 km away.