Spain · Biscay
Playa San Antonio
Biscay, Spain
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 | 23.6 | 1.1 |
| Thu 3 | 23.4 | 0.7 |
| Fri 4 | 23.9 | 0.7 |
| Sat 5 | 23.4 | 1.5 |
| Sun 6 | 23.3 | 1.5 |
| Mon 7 | 23.8 | 1.2 |
| Tue 8 | 23.8 | 1.1 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Poor2015
- 2016: Not classified2016
- 2017: Not classified2017
- 2018: Not classified2018
- 2019: Not classified2019
- 2020: Not classified2020
- 2021: Good2021
- 2022: Good2022
- 2023: Excellent2023
- 2024: Excellent2024
- 2025: Good2025
Good in the most recent season, and 5 of 6 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Poor |
| 2016 | Not classified |
| 2017 | Not classified |
| 2018 | Not classified |
| 2019 | Not classified |
| 2020 | Not classified |
| 2021 | Good |
| 2022 | Good |
| 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 | 17 |
| May | 20 |
| Jun | 22 |
| Jul | 24 |
| Aug | 24 |
| Sep | 24 |
| Oct | 22 |
| Nov | 20 |
| Dec | 18 |
Location & nearby beaches
Nearby beaches
- Playa de To?a1.0 kmBiscay
- Playa de Laida1.5 kmBiscay
- Playa de Laidatxu2.3 kmBiscay
- Playa de Laida2.3 kmBiscay
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 town: Cariño, about ~5.8 km away.
- 1 place to eat within 1 km Closest is O Café do Tempo, about ~290 m away.
- 1 place to stay mapped nearby
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).
- Families
- A quiet swim
Is the water clean at Playa San Antonio?
Playa San Antonio is a transitional bathing site with an official EU Bathing Water rating of Good for the 2025 season — meets the EU bathing-water standard in the latest annual 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 Lifeguard, Sandy shore, and Showers. There's parking about ~210 m from the beach.
Over the 6 classified seasons on record, 5 have come back Excellent or Good — a track record worth checking each year rather than assuming. 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. Worth noting: the rating slipped from Excellent to Good in 2025, so it's especially worth checking the latest local advisories. The nearest town, Cariño, is about ~5.8 km away.
That “Good” 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's 1 place to eat near the beach — O Café do Tempo, about ~290 m away.
Frequently asked questions
Is Playa San Antonio safe to swim in?
Yes — Playa San Antonio's 2025 rating is Good, one step below the top tier, with 5 of 6 classified seasons rated Excellent or Good. That said, the rating slipped from Excellent to Good in 2025, so it's worth checking for current local advisories too.
What temperature is the sea at Playa San Antonio right now?
Playa San Antonio's sea temperature currently sits at around 23°C, based on the latest update — check the “Right now” panel above for the full live picture. That's the reading right off Biscay. On the modeled climatology here, August usually runs warmest.
When should you plan a swimming trip to Playa San Antonio?
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 Biscay. Within that window, August is typically the single warmest month.
How is bathing water quality actually assessed?
Once a year, national authorities report a full season of testing for intestinal enterococci and E. coli to the European Environment Agency, which grades the season Excellent, Good, Sufficient or Poor under the EU Bathing Water Directive. A handful of countries, including Croatia via IZOR, also publish individual in-season samples ahead of that report — Playa San Antonio doesn't have that feed set up yet.
What's the easiest way to reach Playa San Antonio?
By car, it's easy — parking is right by the beach. The nearest town is Cariño, about ~5.8 km away.