Playa La Arena
Luis Fermín TURIEL PEREDO · CC BY-SA 4.0 · Wikimedia Commons

Arnuero · Cantabria

Playa La Arena

Swimming conditions, water quality, sea, tides and facilities

100 mSand★ Blue Flag 2026
Water17 °CDaily high22 °CUV2WavesSlightHigh tide04:44Low tide22:33JellyfishNo recent observationsLess favourable conditions · estimate
Swimming statusGreen flagEstimateForecast for 11/11 · 17:00

Now

Forecast for 17:00

AEMET · issued 11/11 14:09
☂
SkyOvercast with light rain
Temperature20 °CFeels like 20 °C
Forecast rain80%
Humidity65%
WindE 4 km/hGusts 18 km/h
Water17 °C
Maximum UV2
WavesSlight

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 wind14 km/h · 218°Water temperature17 °CValid for11/11/2026 16:00

Weather forecast

Hourly and daily outlook

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

Next hours

Town of Arnuero
Today16:00☁21°Overcast☂ 80% · ↝ SW 7 km/h
Today19:00☂18°Overcast with light rain☂ 100% · ↝ E 6 km/h
Today22:00☂16°Overcast with light rain☂ 100% · ↝ E 10 km/h
Tomorrow01:00☂16°Overcast with light rain☂ 90% · ↝ E 5 km/h
Tomorrow04:00☂16°Overcast with light rain☂ 90% · ↝ SW 8 km/h
Tomorrow07:00☂15°Overcast with light rain☂ 50% · ↝ W 13 km/h
Tomorrow10:00◐15°Partly cloudy☂ 50% · ↝ W 23 km/h
Tomorrow13:00☀18°Clear☂ 100% · ↝ W 25 km/h
Tomorrow16:00☁17°Overcast☂ 100% · ↝ W 28 km/h
Tomorrow19:00☂16°Overcast with light rain☂ 100% · ↝ NW 17 km/h
Tomorrow22:00☂15°Overcast with light rain☂ 100% · ↝ N 5 km/h
Friday 1301:00☂14°Overcast with light rain · ↝ N 4 km/h
Friday 1304:00☂14°Overcast with light rain · ↝ E 3 km/h

Today’s weather

At 17:00, the forecast indicates sky conditions of overcast with light rain and a forecast temperature of 20 °C. This period also has a feels-like temperature of 20 °C, 80% chance of rain and wind E at 4 km/h. For the day as a whole, the published forecast gives a high of 22 °C, water temperature around 17 °C and a maximum UV index of 2.

Next days

Today

☁

Mostly cloudy

Low 16°High 22°
MorningMostly cloudyAfternoonMostly cloudy with rain
☂ Rain 100% ↝ moderado Gusts 41 km/h Humidity 49–91% ≈ slight ◉ Water 17° ☀ UV 2
Beach and town · issued 11/11 14:09

Tomorrow

☁

Mostly cloudy

Low 14°High 19°
MorningMostly cloudyAfternoonCloudy
☂ Rain 100% ↝ moderado Gusts 59 km/h Humidity 71–96% ≈ slight ◉ Water 18° ☀ UV 2
Beach and town · issued 11/11 14:09

Friday 13

☁

Mostly cloudy

Low 14°High 16°
MorningMostly cloudyAfternoonCloudy
☂ Rain 100% ↝ moderado Gusts 14 km/h Humidity 94–95% ≈ moderate ◉ Water 16° ☀ UV 2
Beach and town · issued 11/11 14:09

Saturday 14

☂

Cloudy with light rain

Low 10°High 17°
☂ Rain 75% ↝ W · 20 km/h Humidity 75–100% ☀ UV 2
Daily municipal forecast · issued 11/11 13:29

Sea and tides

Sea conditions

Weather forecast · AEMET · 11/11 14:09
≈

Slight

Water temperature17 °C

WindModerate

A qualitative category is not converted into metres. Height, period and direction are shown only when published by the source.

Siguientes mareas

↓ Bajamar22:33Today · 1.13 m
↑ Pleamar04:44Tomorrow · 4.03 m
↓ Bajamar10:58Tomorrow · 1.11 m
↑ Pleamar17:04Tomorrow · 3.77 m
↓ Bajamar23:07Tomorrow · 1.28 m
↑ Pleamar05:19Friday 13 · 3.9 m
↓ Bajamar11:34Friday 13 · 1.25 m
↑ Pleamar17:39Friday 13 · 3.6 m

Predicción de referencia: Santander · 17.8 km.

Sea and planning

Available marine information indicates water around 17 °C. The next tide references are high tide at 04:44 and low tide at 22:33.

Water health

Water quality

NÁYADE source
Latest available test22/09/2026NÁYADE · Ministerio de Sanidad · ES13000006M39006A1
E. coli10 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
22/09/2026Suitable for bathing10 NMP/100 mL10 NMP/100 mL
01/09/2026Suitable for bathing31 NMP/100 mL10 NMP/100 mL
18/08/2026Suitable for bathing10 NMP/100 mL10 NMP/100 mL
04/08/2026Suitable for bathing10 NMP/100 mL10 NMP/100 mL
14/07/2026Suitable for bathing31 NMP/100 mL10 NMP/100 mL
02/07/2026Suitable for bathing10 NMP/100 mL10 NMP/100 mL
16/06/2026Suitable for bathing10 NMP/100 mL10 NMP/100 mL
02/06/2026Suitable for bathing31 NMP/100 mL10 NMP/100 mL
18/05/2026Suitable for bathing160 NMP/100 mL31 NMP/100 mL
09/09/2025Suitable for bathing160 NMP/100 mL53 NMP/100 mL
25/08/2025Suitable for bathing10 NMP/100 mL10 NMP/100 mL
12/08/2025Suitable for bathing64 NMP/100 mL10 NMP/100 mL
15/07/2025Suitable for bathing10 NMP/100 mL10 NMP/100 mL
24/06/2025Suitable for bathing31 NMP/100 mL53 NMP/100 mL
03/06/2025Suitable for bathing10 NMP/100 mL10 NMP/100 mL
01/10/2024Suitable for bathing238 NMP/100 mL42 NMP/100 mL
17/09/2024Suitable for bathing64 NMP/100 mL99 NMP/100 mL
03/09/2024Suitable for bathing53 NMP/100 mL31 NMP/100 mL
20/08/2024Suitable for bathing31 NMP/100 mL31 NMP/100 mL
30/07/2024Suitable for bathing150 NMP/100 mL20 NMP/100 mL
09/07/2024Suitable for bathing20 NMP/100 mL31 NMP/100 mL
25/06/2024Suitable for bathing192 NMP/100 mL31 NMP/100 mL
12/06/2024Suitable for bathing10 NMP/100 mL10 NMP/100 mL
28/05/2024Suitable for bathing222 NMP/100 mL75 NMP/100 mL
26/09/2023Suitable for bathing31 NMP/100 mL20 NMP/100 mL
12/09/2023Suitable for bathing42 NMP/100 mL42 NMP/100 mL
28/08/2023Suitable for bathing10 NMP/100 mL10 NMP/100 mL
08/08/2023Suitable for bathing10 NMP/100 mL10 NMP/100 mL
18/07/2023Suitable for bathing20 NMP/100 mL10 NMP/100 mL
04/07/2023Suitable for bathing10 NMP/100 mL31 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 22/09/2026. 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 La Arena, also called El Arenal, is a small semi-urban beach of fine golden sand, 100 metres long and 40 metres wide. It forms part of the Marismas de Santoña, Victoria y Joyel ZEC and the associated ZEPA, a protected setting accompanying its coastal character. Occupancy is moderate and the waves are moderate. It is easy to reach on foot or by car via the CA-448, with fewer than 50 parking spaces and an interurban bus. Facilities include toilets, showers, foot-washing facilities, food and cleaning, as well as adapted-access measures.

Length100 mApproximate size of the beach
Typical width40 mPublished average width
CompositionSandPredominant material
Sand typeGoldenPublished texture or colour
SettingSemi-urbanLevel of development
Coastal settingSemi-urbanSurrounding landscape
Access typeEasy on foot · By carPublished access options
Available characteristicProtected area

Available facilities

Facilities

Only facilities published as available are shown
WC
Showers
Foot showers
Bins
Cleaning service
Food and drink
MarinaPuerto de Laredo

Facilities and comfort

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

Activities

Published information identifies the nearby Puerto de Laredo marina.

Access and safety

Accessibility and safety

Accessibility and transport

✓
ParkingFewer than 50 spaces
✓
BusIntercity bus

Safety and assistance

⚑
LifeguardsLifeguard staff and equipment · Emergency number 112
+
First aidPublished first-aid post
!
Safety signageOfficial beach safety signage
+
Nearest health facilityHospital Comarcal de Laredo · 30 km

Access and accessibility

Travel options include parking, a bus connection and access from CA-448.

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

Nearby beaches