Greece · South Aegean
Reni Kalathou - Tholari
South Aegean, Greece
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 | 22.3 | 0.7 |
| Thu 3 | 22.6 | 0.7 |
| Fri 4 | 22.5 | 0.7 |
| Sat 5 | 22.0 | 0.7 |
| Sun 6 | 21.5 | 0.7 |
| Mon 7 | 21.4 | 0.7 |
| Tue 8 | 21.8 | 0.7 |
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 | 17 |
| Feb | 16 |
| Mar | 17 |
| Apr | 19 |
| May | 21 |
| Jun | 24 |
| Jul | 26 |
| Aug | 27 |
| Sep | 27 |
| Oct | 24 |
| Nov | 21 |
| Dec | 19 |
Location & nearby beaches
Nearby beaches
- Vlicha2.1 kmSouth Aegean
- Megalos Gialos3.7 kmSouth Aegean
- Mikros Gialos4.8 kmSouth Aegean
- Charaki4.9 kmSouth Aegean
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Kalathos Atrium E (40), about ~940 m away.
Food, stays & town
- Nearest village: Κάλαθος, about ~1.3 km away.
- 11 places to eat within 1 km Closest is Ostria Beach Bar, about ~230 m away.
- 5 places to stay mapped nearby Closest is Atrium Palace Resort, about ~390 m away.
- 1 shop nearby, about ~470 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 Reni Kalathou - Tholari?
Thinking of swimming at Reni Kalathou - Tholari? The short answer: its official EU Bathing Water rating for 2025 is Excellent — the highest official classification under the EU bathing-water assessment. That rating is set once a year under the EU Bathing Water Directive, from a full season of testing for intestinal enterococci and E. coli reported to the European Environment Agency the following spring, so the 2025 season's grade appeared in spring 2026 and the 2026 season won't be graded 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. It's been a consistently reliable spot too — the rating has held at Excellent for 11 straight years. There's parking about ~260 m from the beach.
That rating has been consistent: every one of the 11 classified seasons on record has come back Excellent or Good. If you're timing a visit around water temperature rather than crowds, July–September is the safest bet, with August typically the peak — expect a cooler, calmer sea either side of that stretch. The nearest town, Κάλαθος, is about ~1.3 km away.
“Excellent” is one point on a four-step scale — Excellent, Good, Sufficient or Poor — assigned once per year from that season's water samples, not a live reading. It describes how the site performs on average across the season, not the exact water quality this afternoon; for day-to-day sea conditions, see the “Right now” and 7-day outlook panels above. There are 11 places to eat within a kilometre — Ostria Beach Bar is the closest, about ~230 m away.
Frequently asked questions
Is it safe to go in the water at Reni Kalathou - Tholari?
Yes, without much reservation. Reni Kalathou - Tholari holds the top EU Bathing Water classification, Excellent, for 2025, and 11 of 11 classified seasons here have rated Excellent or Good. It's also held steady at Excellent for 11 straight years.
What is the sea temperature at Reni Kalathou - Tholari today?
The figure above (about 22°C) is placeholder data — the live marine-weather feed wasn't reachable when this page was built, and the real reading will appear automatically once it is. That's the reading right off South Aegean. On the modeled climatology here, August usually runs warmest.
When should you plan a swimming trip to Reni Kalathou - Tholari?
If you're planning around water temperature, July–September is the window to target — the modeled sea temperature is typically highest then. That applies to the water around South 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 Reni Kalathou - Tholari.
What's nearby Reni Kalathou - Tholari — parking, buses, or a ferry?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Kalathos Atrium E (40), about ~940 m away. The nearest town is Κάλαθος, about ~1.3 km away.