What is the current water temperature in Dún Laoghaire?

Q: What is the current water temperature in Dún Laoghaire?

As of now, in Dún Laoghaire, the water temperature is 8.22°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

Ireland > Dún Laoghaire

Water temperature in Dún Laoghaire

Detailed information about the current water temperature in Dún Laoghaire. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

46.8

°F

March 17, 07:50

Trend:

stable

Yesterday:

46.4°F

Tomorrow:

46.8°F

Sunrise:

06:35

Sunset:

18:32

Day Length:

11 h. 57 min.

Dún Laoghaire in March

Minimum:

44.9°F

Average:

48.5°F

Maximum:

50.8°F

Sea water temperature in Dún Laoghaire today

As of now, in Dún Laoghaire, the water temperature is 46.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.1°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 47.6°F on 2017, while the historical minimum was 44.2°F on 2018.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 46.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Dún Laoghaire

Date	Current Year actual* / forecast**	last year	10 years average
Mar 3	45.7°F	45.5°F	45.5°F
Mar 4	46.0°F	45.5°F	45.5°F
Mar 5	46.0°F	45.8°F	45.4°F
Mar 6	46.3°F	45.8°F	45.3°F
Mar 7	46.4°F	45.9°F	45.4°F
Mar 8	46.0°F	46.6°F	45.5°F
Mar 9	46.2°F	46.0°F	45.4°F
Mar 10	46.6°F	46.0°F	45.4°F
Mar 11	46.8°F	46.0°F	45.4°F
Mar 12	47.1°F	46.1°F	45.5°F
Mar 13	47.0°F	46.0°F	45.5°F
Mar 14	46.9°F	46.0°F	45.4°F
Mar 15	46.5°F	46.0°F	45.4°F
Mar 16	46.4°F	46.4°F	45.5°F
Mar 17	46.8°F	46.5°F	45.7°F
Mar 18	46.8°F	46.8°F	45.7°F
Mar 19	46.9°F	47.1°F	45.8°F
Mar 20	46.9°F	47.0°F	45.8°F
Mar 21	46.9°F	46.8°F	45.8°F
Mar 22	47.0°F	46.9°F	46.0°F
Mar 23	47.1°F	47.4°F	46.0°F
Mar 24	47.0°F	47.2°F	46.0°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Dún Laoghaire by month

In an average year, Dún Laoghaire offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Dún Laoghaire was recorded on August 14, 2022, reaching a 62.6°F. While the coldest temperature occurred on March 11, 2018, dipping to 42.8°F. The average readings by season are 47.6°F in Winter, 48.4°F in Spring, 58.1°F in Summer, and 56.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Dublin	46.6°F	5mi
Bray	46.9°F	6mi
Greystones	47.0°F	11mi

* current water temperature in this city

** straight line distance from Dún Laoghaire