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Dundrum

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Water Temperature in the Irish Sea in Dundrum, Northen Ireland: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Dundrum in Northen Ireland, 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 Dundrum
11.8°C
TODAY
11.8°C
YESTERDAY
11.2°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Irish Sea in Dundrum is 11.8°C. The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used.
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 Irish Sea in Dundrum Over the Last 30 Days
The water temperature in Dundrum 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 Dundrum will remain nearly unchanged in the coming days, its value will be 11.1°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 United Kingdom to enhance accuracy.
Water temperature data for Dundrum 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 |
---|---|---|---|
May 14 | 11.2°C | 10.5°C | |
May 15 | 11.4°C | 10.8°C | |
May 16 | 11.4°C | 10.3°C | |
May 17 | 11.0°C | 10.5°C | |
May 18 | 11.4°C | 10.0°C | |
May 19 | 11.2°C | 10.3°C | |
May 20 | 11.8°C | 11.3°C | |
May 21 | 11.8°C | 11.3°C | |
May 22 | 11.3°C | 11.7°C | |
May 23 | 11.0°C | 11.6°C | |
May 24 | 11.0°C | 11.5°C | |
May 25 | 11.3°C | 11.5°C | |
May 26 | 10.8°C | 11.4°C | |
May 27 | 10.8°C | 11.3°C | |
May 28 | 10.5°C | 11.2°C | |
May 29 | 10.8°C | 11.1°C |
Sea Temperature in Dundrum Throughout the Year
Throughout the year, the sea temperature in Dundrum never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Irish Sea in Dundrum.

January
Minimum | Average | Maximum |
---|---|---|
7°C | 9°C | 11°C |
February
Minimum | Average | Maximum |
---|---|---|
7°C | 8.5°C | 10°C |
March
Minimum | Average | Maximum |
---|---|---|
6°C | 8°C | 10°C |
April
Minimum | Average | Maximum |
---|---|---|
7°C | 9°C | 11°C |
May
Minimum | Average | Maximum |
---|---|---|
8°C | 10.5°C | 13°C |
June
Minimum | Average | Maximum |
---|---|---|
9°C | 12°C | 15°C |
July
Minimum | Average | Maximum |
---|---|---|
11°C | 14.5°C | 18°C |
August
Minimum | Average | Maximum |
---|---|---|
13°C | 15.5°C | 18°C |
September
Minimum | Average | Maximum |
---|---|---|
13°C | 15°C | 17°C |
October
Minimum | Average | Maximum |
---|---|---|
12°C | 13.5°C | 15°C |
November
Minimum | Average | Maximum |
---|---|---|
11°C | 12.5°C | 14°C |
December
Minimum | Average | Maximum |
---|---|---|
9°C | 10.5°C | 12°C |
Monthly Water Temperature Histogram for Irish Sea in Dundrum
You can explore detailed data on how the water temperature in Dundrum varies each month:
What Beaches Are There In and Around Dundrum?
Murlough Beach
Murlough Beach is a 5-stars sandy beach, located in a 3 km (2 miles) radius of Dundrum. 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. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Tyrella South Beach
Tyrella South Beach is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Dundrum. There is parking. There are restrooms. Tyrella South Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Dolje Bay Beach
Dolje Bay Beach is a 2-stars pebble beach, located in a 4 km (2 miles) radius of Dundrum. There is parking. It is suitable for surfing.
Downpatrick Bay Beach
Downpatrick Bay Beach is a 1-stars pebble beach, located in a 4 km (2 miles) radius of Dundrum. Snorkeling is possible.
Tyrella Beach
Tyrella Beach is a 5-stars sandy beach, located in a 6 km (4 miles) radius of Dundrum. 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. Tyrella Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Clanmaghery Bay Beach
Clanmaghery Bay Beach is a 1-stars pebble beach, located in a 7 km (4 miles) radius of Dundrum. Snorkeling is possible.
Dundrum Weather
MAY 22
7°C / 14°C
broken clouds: 51-84%humidity: 81% | wind: 2 km/h
MAY 23
14°C / 17°C
overcast clouds: 85-100%humidity: 88% | wind: 6 km/h
MAY 24
10°C / 13°C
light rainhumidity: 71% | wind: 8 km/h



Sea Temperature in the Irish Sea in Dundrum: General Trends and Swimming Opportunities
The coastal area of Northern Ireland, United Kingdom, features a temperate maritime climate characterized by relatively mild and damp conditions throughout the year. Winters are generally cool with temperatures averaging around 5°C, while summers are mild, with temperatures usually around 15-20°C, and rainfall is evenly distributed throughout the year.
Dundrum is located in Europe in the Northern Hemisphere at a latitude of 54 degrees, along the shores of the Irish Sea. Dundrum lies within the Northen Ireland in United Kingdom.
The average annual daytime air temperature in Dundrum is 14°C (57°F), with the average nighttime temperature being 7°C (45°F). The highest average daily temperature occurs in July, reaching 19°C (67°F), while the lowest is in January at 9°C (48°F). As for nighttime temperatures, the minimum average temperature of 3°C (37°F) is recorded in January, and the maximum is in July, reaching 12°C (53°F).
According to historical data, Dundrum experiences 175 rainy days per year, which accounts for 48 percent of all days in the year. On average, there are 15 rainy days each month. The wettest month is January, with 17 rainy days and 63 mm (2.5 inches) of precipitation, while the driest month is June, which typically has 12 rainy days and only 61 mm (2.4 inches) of precipitation.
The average annual water temperature in Irish Sea in Dundrum is 12°C (54°F). In March, the water reaches its lowest point of the year at 6°C (43°F), while in July, it peaks at 18°C (64°F). In Dundrum, the water temperature in the Irish Sea never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Dundrum
Nearby Cities
Frequently Asked Questions About Dundrum and its Water Temperatures
What is the current sea temperature in Dundrum?
The water temperature today in the Irish Sea in Dundrum is 53°F (11.8°C).
In which months is the water temperature in Dundrum comfortable for swimming?
It cannot be guaranteed that the water temperature in Dundrum will be comfortable for swimming in any month of the year.
What is the water temperature in Dundrum during the winter?
The water temperature in the Irish Sea in Dundrum during the winter ranges from 7°C to 12°C (45°F to 54°F).
What is the water temperature in Dundrum during the spring?
The water temperature in the Irish Sea in Dundrum during the spring ranges from 6°C to 13°C (43°F to 55°F).
What is the water temperature in Dundrum during the summer?
The water temperature in the Irish Sea in Dundrum during the summer ranges from 9°C to 18°C (48°F to 64°F).
What is the water temperature in Dundrum during the fall?
The water temperature in the Irish Sea in Dundrum during the fall ranges from 11°C to 17°C (52°F to 63°F).
Is it possible to swim in the sea in Dundrum at any time of the year?
In Dundrum, the Irish Sea is quite cold, and swimming is almost impossible as the water temperature never reaches 21°C (70°F).
What sea temperatures can I expect in Dundrum in the next month?
In June, the water temperature in the Irish Sea in Dundrum will range between 48°F (9°C) and 59°F (15°C)