Dublin — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Dublin (Republic of Ireland). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Dublin help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Dublin in the Irish Sea today is 13°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°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 Over the Last 30 Days
Water temperature in Dublin rose over the last 30 days but fell over the last week. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Dublin will be 12.8°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 2 | 13.4°C | 12.5°C | |
| JUN 3 | 13.9°C | 13.3°C | |
| JUN 4 | 14.2°C | 12.8°C | |
| JUN 5 | 14.0°C | 12.8°C | |
| JUN 6 | 13.9°C | 12.5°C | |
| JUN 7 | 13.6°C | 12.8°C | |
| JUN 8 | 13.6°C | 11.8°C | |
| JUN 9 | 13.5°C | 12.8°C | |
| JUN 10 | 13.4°C | 12.8°C | 13.4°C |
| JUN 11 | 12.0°C | 13.3°C | |
| JUN 12 | 12.8°C | 13.2°C | |
| JUN 13 | 12.0°C | 13.1°C | |
| JUN 14 | 12.0°C | 13.0°C | |
| JUN 15 | 13.0°C | 13.0°C | |
| JUN 16 | 12.5°C | 12.9°C | |
| JUN 17 | 12.3°C | 12.8°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
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 to enhance accuracy.
Water temperature data for this location 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.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Dublin sits on the east coast of Ireland, bordering Dublin Bay and the Irish Sea, so its coastal water temperatures are moderated by Atlantic currents and local weather. Seasonal averages are cool compared with southern European shores: in winter (December–February) sea temperatures typically range from about 6 °C to 9 °C, spring (March–May) sees water warming to roughly 8 °C to 12 °C, summer (June–August) brings the warmest conditions usually between 14 °C and 18 °C, and autumn (September–November) cools again toward roughly 10 °C to 14 °C. Temperatures vary with tides, wind and exposure; more sheltered bays can be slightly warmer while open stretches and deeper channels remain cooler. Freshwater sites within the county will show different seasonal patterns and often experience greater seasonal extremes.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 7°C | 9°C | 11°C |
| February | 7°C | 8°C | 10°C |
| March | 6°C | 8°C | 10°C |
| April | 7°C | 9°C | 11°C |
| May | 8°C | 11°C | 13°C |
| June | 11°C | 13°C | 16°C |
| July | 12°C | 15°C | 18°C |
| August | 13°C | 15°C | 18°C |
| September | 13°C | 15°C | 17°C |
| October | 12°C | 14°C | 16°C |
| November | 10°C | 13°C | 15°C |
| December | 8°C | 10°C | 13°C |
* Click on a month to view detailed water temperature data.
Dublin: Weather Forecast
June 11
June 12
Location, Beaches & Local Information
Nearby Beaches & Facilities
Dublin Bay
Merrion Strand
Shellybanks Beach
Keem Bay
Ladies Swimming Shelter
Mens Swimming Shelter
Dollymount Strand Beach
Swimming Conditions
Swimming options around Dublin are varied, from sandy beaches and sheltered coves to dedicated open-water swimming spots and indoor pools for year-round exercise. Popular seaside locations around the bay and along the north coast attract bathers and walkers during warmer months, and some beaches operate lifeguard services and seasonal facilities. Cold-water swimming has a strong local following at traditional jumps and tidal pools, and many swimmers use wetsuits outside the peak summer months. For a beach-oriented holiday, expect pleasant but cool sea bathing in high summer, with alternative leisure and swimming available at municipal pools and supervised bathing areas if conditions are blustery or the water is on the cool side. Always check local tide and safety information before entering open water.