Playa Santa María del Mar
Pitufin627 · CC BY 3.0 · Wikimedia Commons

Castrillón · Asturias

Playa Santa María del Mar

Swimming conditions, water quality, sea, tides and facilities

300 mSand★ Blue Flag 2026
Daily high23 °CUV5High tide15:46Low tide21:53JellyfishNo recent observationsLess favourable conditions · estimate
Directions →
Swimming statusUnconfirmed swimming flagNo current data

Now

Forecast for 14:00

AEMET · issued 27/09 09:05
☁
SkyHigh cloud
Temperature23 °CFeels like 23 °C
Forecast rain45%
Humidity53%
WindNW 8 km/hGusts 19 km/h
Maximum UV5

This is an official forecast for the stated period, not an observation taken at the beach.

Environmental estimate

Conditions less favourable for jellyfish arrival

Forecast wind and the regional coastline orientation are less favourable for jellyfish transport towards the shore. This is a limited-confidence regional physical indicator; it does not confirm the presence or absence of jellyfish at this beach.

Accumulated wind4 km/h · 2°Valid for27/09/2026 13:00

Weather forecast

Hourly and daily outlook

Official municipal forecast and, where available, beach-specific information.

Next hours

Town of Castrillón
Today14:00☁23°High cloud☂ 45% · ↝ NW 8 km/h
Today17:00☁21°Mostly cloudy☂ 45% · ↝ N 7 km/h
Today20:00☁20°High cloud☂ 35% · ↝ SW 2 km/h
Today23:00☁18°Overcast☂ 35% · ↝ S 6 km/h
Tomorrow02:00☁18°Overcast☂ 25% · ↝ S 6 km/h
Tomorrow05:00☁17°Cloudy☂ 25% · ↝ NW 5 km/h
Tomorrow08:00☁17°Overcast☂ 5% · ↝ S 5 km/h
Tomorrow11:00☁20°High cloud☂ 5% · ↝ SE 3 km/h
Tomorrow14:00☂23°Sunny intervals with light rain☂ 90% · ↝ N 10 km/h
Tomorrow17:00☂22°Sunny intervals with light rain☂ 90% · ↝ E 10 km/h
Tomorrow20:00☁21°Overcast☂ 45% · ↝ SE 5 km/h
Tomorrow23:00☀18°Clear☂ 45% · ↝ W 6 km/h
Tuesday 2902:00◐17°Partly cloudy · ↝ S 7 km/h
Tuesday 2905:00◐15°Partly cloudy · ↝ S 9 km/h

Today’s weather

At 14:00, the forecast indicates sky conditions of high cloud and a forecast temperature of 23 °C. This period also has a feels-like temperature of 23 °C, 45% chance of rain and wind NW at 8 km/h. For the day as a whole, the published forecast gives a high of 23 °C and a maximum UV index of 5.

Next days

Today

☁

High cloud

Low 18°High 23°
MorningHigh cloudAfternoonMostly cloudy
☂ Rain 45% ↝ SE · 1 km/h Gusts 19 km/h Humidity 53–90% ☀ UV 5
Hourly municipal forecast · issued 27/09 09:05

Tomorrow

☁

High cloud

Low 17°High 23°
MorningHigh cloudAfternoonSunny intervals with light rain
☂ Rain 90% ↝ SE · 3 km/h Gusts 29 km/h Humidity 72–94% ☀ UV 4
Hourly municipal forecast · issued 27/09 09:05

Tuesday 29

◐

Partly cloudy

Low 15°High 18°
☂ Rain 90% ↝ SE · 15 km/h Gusts 24 km/h Humidity 90–96% ☀ UV 5
Hourly municipal forecast · issued 27/09 09:05

Wednesday 30

☂

Mostly cloudy with rain

Low 15°High 22°
☂ Rain 100% ↝ E · 5 km/h Humidity 75–100% ☀ UV 4
Daily municipal forecast · issued 27/09 03:21

Water health

Water quality

NÁYADE source
Latest available test18/08/2026NÁYADE · Ministerio de Sanidad · ES12000016M33016A1
E. coli20 NMP/100 mL
Enterococci10 NMP/100 mL
Latest available annual classificationEXCELLENT2025 season · EEA · does not describe current conditions

The 2026 season does not yet have a final annual classification. The 2025 result is historical; for recent conditions, check the latest test and any published incidents.

View all test results
DateAssessmentE. coliEnterococci
18/08/2026Suitable for bathing20 NMP/100 mL10 NMP/100 mL
20/07/2026Suitable for bathing10 NMP/100 mL10 NMP/100 mL
29/06/2026Suitable for bathing10 NMP/100 mL10 NMP/100 mL
08/06/2026Suitable for bathing10 NMP/100 mL10 NMP/100 mL
18/05/2026Suitable for bathing97 NMP/100 mL41 NMP/100 mL
01/09/2025Suitable for bathing10 NMP/100 mL10 NMP/100 mL
04/08/2025Suitable for bathing10 NMP/100 mL10 NMP/100 mL
14/07/2025Suitable for bathing31 NMP/100 mL20 NMP/100 mL
16/06/2025Suitable for bathing20 NMP/100 mL10 NMP/100 mL
19/05/2025Suitable for bathing20 NMP/100 mL10 NMP/100 mL
19/08/2024Suitable for bathing20 NMP/100 mL10 NMP/100 mL
05/08/2024Suitable for bathing30 NMP/100 mL30 NMP/100 mL
22/07/2024Suitable for bathing20 NMP/100 mL10 NMP/100 mL
08/07/2024Suitable for bathing41 NMP/100 mL20 NMP/100 mL
13/05/2024Suitable for bathing10 NMP/100 mL10 NMP/100 mL
21/08/2023Suitable for bathing109 NMP/100 mL10 NMP/100 mL
07/08/2023Suitable for bathing52 NMP/100 mL10 NMP/100 mL
26/07/2023Suitable for bathing63 NMP/100 mL10 NMP/100 mL
10/07/2023Suitable for bathing355 NMP/100 mL10 NMP/100 mL
12/06/2023Suitable for bathing10 NMP/100 mL10 NMP/100 mL
15/05/2023Suitable for bathing10 NMP/100 mL20 NMP/100 mL
View annual history
2025 EXCELLENT EEA2024 EXCELLENT EEA2023 EXCELLENT EEA2022 EXCELLENT EEA2021 EXCELLENT EEA2020 EXCELLENT EEA2019 EXCELLENT EEA2018 EXCELLENT EEA2017 EXCELLENT EEA2016 EXCELLENT EEA2015 EXCELLENT EEA

A sample or annual classification does not override a later incident or operational flag.

Water quality

The latest microbiological sample was taken on 18/08/2026. The available annual classification for 2025 is excellent; this is a historical assessment, not confirmation of today’s conditions.

Beach at a glance

What it is like

Characteristics published by official sources

Playa Santa María del Mar forms at the mouth of the Ferrera River and is a broad urban beach of golden sand. It measures 300 metres long and reaches 150 metres in width, with a semi-urban frontage, promenade and vegetation within a ZEPA and Site of Community Importance (SCI). The swell is moderate and visitor numbers high. Access is easy on foot or by car via the N-632, with more than 100 parking spaces; toilets, showers and a catering service complete its facilities.

Length300 mApproximate size of the beach
Typical width150 mPublished average width
CompositionSandPredominant material
Sand typeGoldenPublished texture or colour
SettingUrbanLevel of development
Coastal settingSemi-urbanSurrounding landscape
Access typeEasy on foot · By carPublished access options
Available characteristicPromenade
Available characteristicVegetation and dunes
Available characteristicProtected area

Available facilities

Facilities

Only facilities published as available are shown
WC
Showers
Bins
Cleaning service
Food and drink
MarinaAvilés

Facilities and comfort

Confirmed facilities include toilets, showers, bins, a cleaning service and food and drink.

Activities

Published information identifies the nearby Avilés marina.

Access and safety

Accessibility and safety

Accessibility and transport

✓
Accessible accessPublished accessible access
✓
ParkingMore than 100 spaces
✓
BusUrban bus (Avilés - Piedras Blancas)

Safety and assistance

⚑
LifeguardsSummer season · Emergency number 112
+
First aidPublished first-aid post
!
Safety signageOfficial beach safety signage
+
Nearest health facilityHospital de San Agustín · 10 km

Access and accessibility

Accessibility information confirms step-free or accessible access. Travel options include parking, a bus connection and access from N-632.

Location

Directions

Open directions in Google Maps

Practical ideas for your visit

Near this beach

Eat, have a drink, stay or park nearby without spending time searching.

About these results: distances are calculated in a straight line and each link opens the stored point, rather than a name search. Position does not imply an editorial recommendation or guarantee opening times or availability.

A few kilometres away

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