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United Kingdom

United Kingdom, Wales © By Cane_Giapponese
United Kingdom Sea Temperature
This page provides detailed information about the water temperature in United Kingdom. All countries, cities and resorts on the coast. The range of sea temperatures for today. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Sea Temperature
5.8°C
minimal
8.0°C
average
10.4°C
maximum
Graph of Sea Temperature Changes in United Kingdom Over the Last 60 Days
The Warmest Places on the Seaside in United Kingdom Today
The Most Popular Seaside Resorts in United Kingdom
Seas and Oceans that Border United Kingdom

United Kingdom, Wales © By Cath Mudford
United Kingdom: List of Regions



Water Temperature in United Kingdom: General Trends and Swimming Opportunities
The United Kingdom, surrounded by the Atlantic Ocean, the North Sea, the English Channel, and the Irish Sea, offers a variety of coastal experiences for swimming, though the water temperatures are generally cooler than in many Mediterranean destinations. In summer, sea temperatures around the UK range from 15°C to 19°C (59°F to 66°F) along the southern coast, such as in Cornwall and the Isle of Wight, and slightly cooler in the north and east, including Scotland and parts of Wales. While these temperatures may feel chilly to some, many locals and visitors enjoy swimming during the warmer months, especially when the weather is sunny.
Popular seaside destinations like Brighton, Blackpool, and the beaches of Cornwall see numerous swimmers each summer. However, swimming in the UK is most enjoyable in the warmer months, from late spring to early autumn. To make the experience more comfortable, people often wear wetsuits, especially for longer swims. The UK also has a thriving open-water swimming community, and many people take to the beaches and rivers even in cooler weather, braving the waters for a refreshing dip.
Beyond the coast, the UK is also home to many lakes and rivers that offer additional opportunities for swimming. For example, the Lake District and Scotland's lochs provide some of the best inland swimming spots. However, just like coastal swimming, the water here can be quite cold, even in summer, so swimmers need to be prepared for the chilly conditions. Despite the cooler temperatures, swimming in the UK's waters is a beloved tradition, and many enjoy the opportunity to connect with nature through outdoor swimming.
General Information and Geographical Location of United Kingdom
Great Britain is located in Europe. The country is washed by four seas, such as the Irish Sea, the Celtic Sea, the North Sea, the English Channel. Great Britain is a large resort country and has a long coastline. To determine the temperature of the water in it, we track 342 settlements and resorts. Link to Google Maps.
United Kingdom Weather
The United Kingdom has a temperate maritime climate, meaning it experiences mild temperatures throughout the year with frequent rainfall. Winters are generally cool rather than harsh, with average temperatures ranging from 35°F to 45°F (2°C to 7°C). Snowfall is rare in most parts of the country but can occur in Scotland and higher elevations. Rain and overcast skies are common in winter, with occasional strong winds, especially in coastal areas. Despite the damp and cloudy conditions, extreme cold is unusual.
Summers in the UK are mild to warm, with average daytime temperatures between 65°F and 75°F (18°C to 24°C), although heatwaves can occasionally push temperatures above 85°F (29°C). The southern regions, such as London and the southeast, tend to be warmer and drier, while the north and west receive more rainfall. The weather is highly unpredictable, with sunny spells often interrupted by sudden showers. This mix of mild temperatures and changing conditions gives the UK its well-known reputation for unpredictable weather, making it wise to always carry an umbrella.
Frequently Asked Questions About United Kingdom and its Water Temperatures
What is the sea temperature today on the coast of United Kingdom?
The sea temperature today on the coast of United Kingdom ranges from from 42°F (5.8°C) in High Valleyfield to 51°F (10.4°C) in West Pentire.
Which seas and oceans border United Kingdom?
United Kingdom is bordered by four seas, namely: the Celtic Sea, the North Sea, the English Channel, the Irish Sea.
How long is the coastline in United Kingdom?
According to The World Factbook, the length of United Kingdom's coastline is 7,723 miles (12,429 km), while the World Resources Institute estimates it at 12,251 miles (19,717 km).
What is the best time for swimming and beach holidays on the coast of United Kingdom?
In United Kingdom, the average monthly sea temperature does not rise above 68 degrees Fahrenheit (20 degrees Celsius) in any month of the year. The highest water temperature occurs in August and reaches only 71 degrees Fahrenheit (22 degrees Celsius).
What is the sea temperature history in United Kingdom?
Here are the ranges of sea temperatures in United Kingdom by month based on historical data: in January from 37°F (3°C) to 53°F (12°C), in February from 37°F (3°C) to 53°F (12°C), in March from 39°F (4°C) to 53°F (12°C), in April from 41°F (5°C) to 55°F (13°C), in May from 42°F (6°C) to 59°F (15°C), in June from 44°F (7°C) to 64°F (18°C), in July from 48°F (9°C) to 69°F (21°C), in August from 50°F (10°C) to 71°F (22°C), in September from 48°F (9°C) to 71°F (22°C), in October from 48°F (9°C) to 66°F (19°C), in November from 44°F (7°C) to 62°F (17°C), in December from 39°F (4°C) to 59°F (15°C).