France · Corse-du-Sud
La Castagna Sud
Corse-du-Sud, France
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 | 27.3 | 0.6 |
| Thu 3 | 27.5 | 0.6 |
| Fri 4 | 27.6 | 0.6 |
| Sat 5 | 27.5 | 0.4 |
| Sun 6 | 27.5 | 0.4 |
| Mon 7 | 27.7 | 0.2 |
| Tue 8 | 27.6 | 0.1 |
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: Good2025
Good 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 | Good |
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 | 23 |
| Jul | 25 |
| Aug | 26 |
| Sep | 25 |
| Oct | 23 |
| Nov | 21 |
| Dec | 18 |
Location & nearby beaches
Nearby beaches
- Plage de Portigliolo2.4 kmCorse-du-Sud
- Plage de Verghia4.8 kmCorse-du-Sud
- Plage de Mare e Sole5.3 kmCorse-du-Sud
- Cala D'Orzo6.6 kmCorse-du-Sud
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: Verghia / a Verghja, about ~4.6 km away.
What kind of beach is this?
With no facilities mapped nearby, this beach is usually on the quiet side even in season — worth knowing if you're after solitude, but also worth bringing your own water and shade.
Estimated from OpenStreetMap surroundings data (ODbL).
- A quiet swim
Is the water clean at La Castagna Sud?
Thinking of swimming at La Castagna Sud? The short answer: its official EU Bathing Water rating for 2025 is Good — meets the EU bathing-water standard in the latest annual 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. Worth noting: the rating slipped from Excellent to Good in 2025, so it's especially worth checking the latest local advisories. You can park about ~30 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. Verghia / a Verghja — the closest town — sits about ~4.6 km from here.
Worth remembering: “Good” 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 Corse-du-Sud.
Frequently asked questions
Can you safely swim at La Castagna Sud?
It's a solid yes: La Castagna Sud is rated Good for 2025, the second tier on the EU scale, backed by 11 of 11 classified seasons at Excellent or Good. That said, the rating slipped from Excellent to Good in 2025, so it's worth checking for current local advisories too.
How cold or warm is the water at La Castagna Sud today?
As of the latest update, the sea temperature at La Castagna Sud is around 27°C — see the “Right now” panel above for live conditions. That's the reading right off Corse-du-Sud.
Which month has the warmest sea at La Castagna Sud?
July–September is typically the most reliable swimming window, with the sea usually warmest in the second half of summer. That applies to the water around Corse-du-Sud.
How is the water quality rating measured?
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; La Castagna Sud isn't yet covered by that in-season feed.
Can you drive to La Castagna Sud?
By car, it's easy — parking is right by the beach. The nearest town is Verghia / a Verghja, about ~4.6 km away.