Search for cities, countries, lakes and rivers
Dun Laoghaire
Water Temperature in the Irish Sea in Dun Laoghaire, Ireland: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Dun Laoghaire in 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 Dun Laoghaire
10.5°C
TODAY
10.6°C
YESTERDAY
9.1°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Irish Sea in Dun Laoghaire is 10.5°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 Dun Laoghaire Over the Last 30 Days
The water temperature in Dun Laoghaire 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 Dun Laoghaire will remain nearly unchanged in the coming days, its value will be 10.2°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 Ireland to enhance accuracy.
Water temperature data for Dun Laoghaire 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 |
|---|---|---|---|
| Apr 29 | 9.1°C | 9.5°C | |
| Apr 30 | 9.4°C | 9.5°C | |
| May 1 | 9.4°C | 9.8°C | |
| May 2 | 9.3°C | 9.0°C | |
| May 3 | 9.0°C | 10.0°C | |
| May 4 | 9.9°C | 9.3°C | |
| May 5 | 10.6°C | 10.0°C | |
| May 6 | 10.5°C | 9.8°C | |
| May 7 | 9.8°C | 10.4°C | |
| May 8 | 10.0°C | 10.3°C | |
| May 9 | 9.5°C | 10.2°C | |
| May 10 | 10.3°C | 10.2°C | |
| May 11 | 10.5°C | 10.2°C | |
| May 12 | 10.3°C | 10.2°C | |
| May 13 | 9.8°C | 10.1°C | |
| May 14 | 10.8°C | 10.2°C |
Sea Temperature in Dun Laoghaire Throughout the Year
Throughout the year, the sea temperature in Dun Laoghaire never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Irish Sea in Dun Laoghaire.
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 |
|---|---|---|
| 11°C | 13.5°C | 16°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 12°C | 15°C | 18°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 15°C | 17°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 15°C | 17°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 12°C | 14°C | 16°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 11°C | 13°C | 15°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 10.5°C | 13°C |
Monthly Water Temperature Histogram for Irish Sea in Dun Laoghaire
You can explore detailed data on how the water temperature in Dun Laoghaire varies each month:
What Beaches Are There In and Around Dun Laoghaire?
Sandycove Beach
Sandycove Beach is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Dun Laoghaire. There is parking. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Whiterock
Whiterock is a 2-stars sandy beach, located in a 4 km (2 miles) radius of Dun Laoghaire. There is parking. Snorkeling is possible. It is suitable for surfing.
Killiney Beach
Killiney Beach is a 5-stars sandy beach, located in a 4 km (2 miles) radius of Dun Laoghaire. 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. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Hawk Cliff Beach
Hawk Cliff Beach is a 4-stars sandy beach, located in a 4 km (2 miles) radius of Dun Laoghaire. For those who prefer clothing-optional beaches, Hawk Cliff Beach is a designated nudist 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.
Malahide
Malahide is a 5-stars sandy beach, located in a 4 km (2 miles) radius of Dun Laoghaire. 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. Malahide 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.
Portrane
Portrane is a 5-stars sandy beach, located in a 5 km (3 miles) radius of Dun Laoghaire. 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. Portrane 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.
Merrion Strand
Merrion Strand is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Dun Laoghaire.
Rush Beach
Rush Beach is a 5-stars sandy beach, located in a 6 km (4 miles) radius of Dun Laoghaire. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Rush 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.
Shellybanks Beach
Shellybanks Beach is a 1-stars sandy beach, located in a 6 km (4 miles) radius of Dun Laoghaire.
Killiney
Killiney is a 5-stars sandy beach, located in a 6 km (4 miles) radius of Dun Laoghaire. 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. Killiney 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.
Loughshinny
Loughshinny is a 4-stars sandy beach, located in a 7 km (4 miles) radius of Dun Laoghaire. There is parking. There are cafés. Loughshinny 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.
Skerries South Beach
Skerries South Beach is a 5-stars sandy beach, located in a 7 km (4 miles) radius of Dun Laoghaire. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Skerries South Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Dublin Bay
Dublin Bay is a 1-stars sandy beach, located in a 7 km (4 miles) radius of Dun Laoghaire.
Shanganagh Bay Beach
Shanganagh Bay Beach is a 1-stars sandy beach, located in a 7 km (4 miles) radius of Dun Laoghaire.
Mens Swimming Shelter
Mens Swimming Shelter is a 1-stars sandy beach, located in a 7 km (4 miles) radius of Dun Laoghaire.
Ladies Swimming Shelter
Ladies Swimming Shelter is a 1-stars sandy beach, located in a 7 km (4 miles) radius of Dun Laoghaire.
Balbriggan
Balbriggan is a 5-stars sandy beach, located in a 8 km (5 miles) radius of Dun Laoghaire. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Balbriggan 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.
Dollymount Strand Beach
Dollymount Strand Beach is a 4-stars sandy beach, located in a 8 km (5 miles) radius of Dun Laoghaire. There are lifeguards on the beach. There is parking. There are restrooms. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Sutton
Sutton is a 4-stars sandy beach, located in a 8 km (5 miles) radius of Dun Laoghaire. There are lifeguards on the beach. There are cafés. Sutton 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.
Shankill Beach
Shankill Beach is a 1-stars sandy beach, located in a 8 km (5 miles) radius of Dun Laoghaire.
Dun Laoghaire Weather
MAY 7
9°C / 11°C
scattered clouds: 25-50%humidity: 80% | wind: 3 km/h
MAY 8
9°C / 13°C
clear skyhumidity: 77% | wind: 2 km/h
MAY 9
10°C / 14°C
scattered clouds: 25-50%humidity: 67% | wind: 2 km/h
MAY 10
11°C / 11°C
clear skyhumidity: 72% | wind: 1 km/h
Sea Temperature in the Irish Sea in Dun Laoghaire: General Trends and Swimming Opportunities
Leinster, located on the coast of Ireland, has a temperate maritime climate characterized by mild winters and moderate summers. The region experiences frequent rainfall throughout the year, accompanied by consistent and moderate sea breezes.
Dun Laoghaire is located in Europe in the Northern Hemisphere at a latitude of 53 degrees, along the shores of the Irish Sea. Dun Laoghaire lies within the Leinster in Ireland.
The average annual daytime air temperature in Dun Laoghaire 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, Dun Laoghaire 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 Dun Laoghaire 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 Dun Laoghaire, the water temperature in the Irish Sea never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Dun Laoghaire
Nearby Cities
Frequently Asked Questions About Dun Laoghaire and its Water Temperatures
What is the current sea temperature in Dun Laoghaire?
The water temperature today in the Irish Sea in Dun Laoghaire is 51°F (10.5°C).
In which months is the water temperature in Dun Laoghaire comfortable for swimming?
It cannot be guaranteed that the water temperature in Dun Laoghaire will be comfortable for swimming in any month of the year.
What is the water temperature in Dun Laoghaire during the winter?
The water temperature in the Irish Sea in Dun Laoghaire during the winter ranges from 7°C to 13°C (45°F to 55°F).
What is the water temperature in Dun Laoghaire during the spring?
The water temperature in the Irish Sea in Dun Laoghaire during the spring ranges from 6°C to 13°C (43°F to 55°F).
What is the water temperature in Dun Laoghaire during the summer?
The water temperature in the Irish Sea in Dun Laoghaire during the summer ranges from 11°C to 18°C (52°F to 64°F).
What is the water temperature in Dun Laoghaire during the fall?
The water temperature in the Irish Sea in Dun Laoghaire during the fall ranges from 11°C to 17°C (52°F to 63°F).
Is it possible to swim in the sea in Dun Laoghaire at any time of the year?
In Dun Laoghaire, the Irish Sea is quite cold, and swimming is almost impossible as the water temperature never reaches 21°C (70°F).
Is Dun Laoghaire a popular tourist destination for beach vacations?
Dun Laoghaire a fairly popular beach destination, offering good conditions for swimming and relaxation, with a steady flow of tourists, especially during peak seasons.
What sea temperatures can I expect in Dun Laoghaire in the next month?
In June, the water temperature in the Irish Sea in Dun Laoghaire will range between 52°F (11°C) and 61°F (16°C)