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Castro Urdiales
Water Temperature in the Bay of Biscay in Castro Urdiales, Spain: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Castro Urdiales in Spain, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Castro Urdiales
12.4°C
TODAY
12.3°C
YESTERDAY
12.5°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Bay of Biscay in Castro Urdiales is 12.4°C. The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for Bay of Biscay in Castro Urdiales Over the Last 30 Days
The water temperature in Castro Urdiales today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Castro Urdiales will remain nearly unchanged in the coming days, its value will be 12.4°C.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across Spain to enhance accuracy.
Water temperature data for Castro Urdiales and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
Date | Current | Average | Forecast |
---|---|---|---|
Feb 15 | 12.5°C | 13.0°C | |
Feb 16 | 12.7°C | 12.3°C | |
Feb 17 | 12.3°C | 12.5°C | |
Feb 18 | 12.4°C | 13.0°C | |
Feb 19 | 12.5°C | 12.8°C | |
Feb 20 | 12.2°C | 12.5°C | |
Feb 21 | 12.3°C | 12.0°C | |
Feb 22 | 12.5°C | 12.8°C | |
Feb 23 | 11.8°C | 12.3°C | |
Feb 24 | 12.8°C | 12.4°C | |
Feb 25 | 12.5°C | 12.4°C | |
Feb 26 | 12.8°C | 12.4°C | |
Feb 27 | 12.0°C | 12.3°C | |
Feb 28 | 12.0°C | 12.3°C | |
Mar 1 | 12.5°C | 12.3°C | |
Mar 2 | 12.8°C | 12.4°C |
Sea Temperature in Castro Urdiales Throughout the Year
Throughout the year, the sea temperature in Castro Urdiales exceeds 77°F (25°C) for 0 days, exceeds 72°F (22°C) for 9 days, and exceeds 64°F (18°C) for 128 days.
Below is the annual chart of sea temperature changes in the Bay of Biscay in Castro Urdiales.
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January
Minimum | Average | Maximum |
---|---|---|
12°C | 13.5°C | 15°C |
February
Minimum | Average | Maximum |
---|---|---|
11°C | 12.5°C | 14°C |
March
Minimum | Average | Maximum |
---|---|---|
11°C | 13°C | 15°C |
April
Minimum | Average | Maximum |
---|---|---|
12°C | 14°C | 16°C |
May
Minimum | Average | Maximum |
---|---|---|
13°C | 16°C | 19°C |
June
Minimum | Average | Maximum |
---|---|---|
15°C | 18.5°C | 22°C |
July
Minimum | Average | Maximum |
---|---|---|
17°C | 20°C | 23°C |
August
Minimum | Average | Maximum |
---|---|---|
19°C | 21.5°C | 24°C |
September
Minimum | Average | Maximum |
---|---|---|
17°C | 20°C | 23°C |
October
Minimum | Average | Maximum |
---|---|---|
14°C | 18°C | 22°C |
November
Minimum | Average | Maximum |
---|---|---|
13°C | 16°C | 19°C |
December
Minimum | Average | Maximum |
---|---|---|
11°C | 14°C | 17°C |
Monthly Water Temperature Histogram for Bay of Biscay in Castro Urdiales
You can explore detailed data on how the water temperature in Castro Urdiales varies each month:
What Beaches Are There In and Around Castro Urdiales?
Playa Del Matadero
Playa Del Matadero is a 3-stars sandy beach, is located directly in Castro Urdiales. There is parking. There are restrooms. There are shops. There are cafés.
Brazomar
Brazomar is a 5-stars sandy beach, is located directly in Castro Urdiales. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Brazomar is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Playa De Brazomar
Playa De Brazomar is a 4-stars sandy beach, is located directly in Castro Urdiales. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There is parking. There are restrooms. There are shops. There are cafés. Snorkeling is possible.
Ostende / Urdiales
Ostende / Urdiales is a 5-stars sandy beach, is located directly in Castro Urdiales. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Ostende Beach
Ostende Beach is a 4-stars sandy beach, is located directly in Castro Urdiales. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There is parking. There are shops. There are cafés. It is suitable for surfing.
Dicido
Dicido is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Castro Urdiales. There are lifeguards on the beach. There is parking.
Cala De Miono
Cala De Miono is a 1-stars pebble beach, located in a 3 km (2 miles) radius of Castro Urdiales. There is parking.
Playa De Miono
Playa De Miono is a 2-stars pebble beach, located in a 3 km (2 miles) radius of Castro Urdiales. There is parking. There are cafés. Snorkeling is possible.
El Berron
El Berron is a 2-stars sandy beach, located in a 5 km (3 miles) radius of Castro Urdiales. There are lifeguards on the beach.
La Secreta Hondartza
La Secreta Hondartza is a 2-stars sandy beach, located in a 7 km (4 miles) radius of Castro Urdiales. There is parking.
Orinon
Orinon is a 4-stars sandy beach, located in a 8 km (5 miles) radius of Castro Urdiales. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are cafés. It is suitable for surfing.
Playa De Arenillas
Playa De Arenillas is a 4-stars sandy beach, located in a 8 km (5 miles) radius of Castro Urdiales. There are lifeguards on the beach. There is parking. There are cafés. Playa De Arenillas is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing.
Playa De La Arena
Playa De La Arena is a 2-stars sandy beach, located in a 9 km (6 miles) radius of Castro Urdiales. For those who prefer clothing-optional beaches, Playa De La Arena is a designated nudist beach. There are shops. There are cafés. It is suitable for surfing.
Playa Del Lastron
Playa Del Lastron is a 1-stars sandy beach, located in a 9 km (6 miles) radius of Castro Urdiales.
Playa Orinon
Playa Orinon is a 2-stars sandy beach, located in a 9 km (6 miles) radius of Castro Urdiales. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Playa De Orinon
Playa De Orinon is a 3-stars sandy beach, located in a 9 km (6 miles) radius of Castro Urdiales. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There is parking.
Cala Sonabia
Cala Sonabia is a 2-stars pebble beach, located in a 9 km (6 miles) radius of Castro Urdiales. There is parking. There are cafés.
Playa Sonabia
Playa Sonabia is a 1-stars sandy beach, located in a 10 km (6 miles) radius of Castro Urdiales.
Arenal De Sonabia
Arenal De Sonabia is a 4-stars sandy beach, located in a 10 km (6 miles) radius of Castro Urdiales. There are lifeguards on the beach. For those who prefer clothing-optional beaches, Arenal De Sonabia is a designated nudist beach. There is parking. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Castro Urdiales Weather
FEBRUARY 23
10°C / 19°C
overcast clouds: 85-100%humidity: 59% | wind: 3 km/h
FEBRUARY 24
10°C / 12°C
overcast clouds: 85-100%humidity: 80% | wind: 4 km/h
FEBRUARY 25
7°C / 11°C
light rainhumidity: 81% | wind: 3 km/h
FEBRUARY 26
6°C / 8°C
light rainhumidity: 88% | wind: 2 km/h



Sea Temperature in the Bay of Biscay in Castro Urdiales: General Trends and Swimming Opportunities
The coastal region of Cantabria, Spain, experiences a maritime climate characterized by mild summers and cool, wet winters. The area is significantly influenced by the warm Gulf Stream, resulting in relatively stable, humid conditions year-round.
Castro Urdiales is located in Europe in the Northern Hemisphere at a latitude of 43 degrees, along the shores of the Bay of Biscay. Castro Urdiales lies within the Cantabria in Spain.
The average annual daytime air temperature in Castro Urdiales is 18°C (64°F), with the average nighttime temperature being 12°C (54°F). The highest average daily temperature occurs in August, reaching 24°C (75°F), while the lowest is in January at 12°C (54°F). As for nighttime temperatures, the minimum average temperature of 7°C (44°F) is recorded in January, and the maximum is in July, reaching 17°C (63°F).
According to historical data, Castro Urdiales experiences 139 rainy days per year, which accounts for 38 percent of all days in the year. On average, there are 12 rainy days each month. The wettest month is November, with 14 rainy days and 139 mm (5.5 inches) of precipitation, while the driest month is July, which typically has 8 rainy days and only 49 mm (1.9 inches) of precipitation.
The average annual water temperature in Bay of Biscay in Castro Urdiales is 16°C (61°F). In February, the water reaches its lowest point of the year at 11°C (52°F), while in August, it peaks at 24°C (75°F). In Castro Urdiales, the water temperature in the Bay of Biscay never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Castro Urdiales
Nearby Cities
Frequently Asked Questions About Castro Urdiales and its Water Temperatures
What is the current sea temperature in Castro Urdiales?
The water temperature today in the Bay of Biscay in Castro Urdiales is 54°F (12.4°C).
In which months is the water temperature in Castro Urdiales comfortable for swimming?
It cannot be guaranteed that the water temperature in Castro Urdiales will be comfortable for swimming in any month of the year.
What is the water temperature in Castro Urdiales during the winter?
The water temperature in the Bay of Biscay in Castro Urdiales during the winter ranges from 11°C to 17°C (52°F to 63°F).
What is the water temperature in Castro Urdiales during the spring?
The water temperature in the Bay of Biscay in Castro Urdiales during the spring ranges from 11°C to 19°C (52°F to 66°F).
What is the water temperature in Castro Urdiales during the summer?
The water temperature in the Bay of Biscay in Castro Urdiales during the summer ranges from 15°C to 24°C (59°F to 75°F).
What is the water temperature in Castro Urdiales during the fall?
The water temperature in the Bay of Biscay in Castro Urdiales during the fall ranges from 13°C to 23°C (55°F to 73°F).
Is it possible to swim in the sea in Castro Urdiales at any time of the year?
The Bay of Biscay in Castro Urdiales is quite cool, and swimming is only possible in June, July, August, September, and October when the water temperature reaches 21°C (70°F).
What sea temperatures can I expect in Castro Urdiales in the next month?
In March, the water temperature in the Bay of Biscay in Castro Urdiales will range between 52°F (11°C) and 59°F (15°C)