Spain · Cantabria
Playa de San Martin
Cantabria, 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 | 0.9 |
| Thu 3 | 23.5 | 0.7 |
| Fri 4 | 23.8 | 0.6 |
| Sat 5 | 23.5 | 1.3 |
| Sun 6 | 23.5 | 1.3 |
| Mon 7 | 23.6 | 1.0 |
| Tue 8 | 23.8 | 0.9 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Good2015
- 2016: Sufficient2016
- 2017: Sufficient2017
- 2018: Sufficient2018
- 2019: Sufficient2019
- 2020: Sufficient2020
- 2021: Good2021
- 2022: Excellent2022
- 2023: Good2023
- 2024: Good2024
- 2025: Good2025
Good in the most recent season, and 6 of 11 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Good |
| 2016 | Sufficient |
| 2017 | Sufficient |
| 2018 | Sufficient |
| 2019 | Sufficient |
| 2020 | Sufficient |
| 2021 | Good |
| 2022 | Excellent |
| 2023 | Good |
| 2024 | Good |
| 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 Salve1.7 kmCantabria
- Playa de Berria3.1 kmCantabria
- Playa Salve3.8 kmCantabria
- Playa Helgueras5.5 kmCantabria
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Nearest bus stop is about ~680 m away.
- Ferry: Embarcadero de Santoña, about ~120 m away.
Food, stays & town
- Nearest town: Santoña, about ~600 m away.
- 30 places to eat within 1 km Closest is Restaurante Asador La Reina del Cantábrico, about ~90 m away.
- 9 shops nearby, the closest about ~190 m away
What kind of beach is this?
This is a town beach, woven into the everyday fabric of a city or larger settlement — expect company on warm days, especially through July and August, alongside easy access to shops and services.
Estimated from OpenStreetMap surroundings data (ODbL).
- Families
- Water sports
Is the water clean at Playa de San Martin?
Playa de San Martin 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 Pebble shore. There's parking about ~190 m from the beach.
Looking to avoid the busiest weeks? The water is typically warmest around August, with the most reliable swimming window running July–September; outside that stretch you'll find a cooler sea but a quieter beach. Over the 11 classified seasons on record, 6 have come back Excellent or Good — a track record worth checking each year rather than assuming. The nearest town, Santoña, is about ~600 m away.
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 Cantabria. There are 30 places to eat within a kilometre — Restaurante Asador La Reina del Cantábrico is the closest, about ~90 m away.
Frequently asked questions
Is Playa de San Martin safe to swim in?
Playa de San Martin passes comfortably — its 2025 EU Bathing Water rating is Good, and 6 of 11 classified seasons have rated Excellent or Good. It's also held steady at Good for 3 straight years.
What is the sea temperature at Playa de San Martin today?
The latest reading puts the sea at Playa de San Martin at around 23°C — the “Right now” panel above has the full live picture. That's the reading right off Cantabria. On the modeled climatology here, August usually runs warmest.
When should you plan a swimming trip to Playa de San Martin?
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 Cantabria. Within that window, August is typically the single warmest month.
Where does the water quality rating come from?
Behind the annual grade: a season of testing for intestinal enterococci and E. coli, reported to the European Environment Agency each spring under the EU Bathing Water Directive. A few countries, Croatia via IZOR included, also publish individual in-season samples ahead of that report, but Playa de San Martin doesn't have one published yet.
What's the easiest way to reach Playa de San Martin?
By car, it's easy — parking is right by the beach. There's a bus stop about ~680 m from the beach. By ferry, the nearest landing is Embarcadero de Santoña, about ~120 m away. The nearest town is Santoña, about ~600 m away.