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 10.18°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.

50.3

°F

December 9, 23:48

Trend:

decreasing

Yesterday:

50.3°F

Tomorrow:

50.1°F

Sunrise:

08:27

Sunset:

16:07

Day Length:

7 h. 40 min.

Dún Laoghaire in December

Minimum:

44.6°F

Average:

47.3°F

Maximum:

48.7°F

Sea water temperature in Dún Laoghaire today

As of now, in Dún Laoghaire, the water temperature is 50.3°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 0.3°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 51.3°F on 2016, while the historical minimum was 48.4°F on 2021.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 49.9°F, the minimum temperature may reach 49.4°F, and the maximum might stay at 50.1°F.

Daily water temperature in Dún Laoghaire

Date	Current Year actual* / forecast**	last year	10 years average
Nov 25	50.3°F	52.8°F	52.0°F
Nov 26	50.2°F	52.1°F	51.8°F
Nov 27	50.4°F	51.6°F	51.6°F
Nov 28	50.0°F	51.6°F	51.3°F
Nov 29	49.7°F	51.6°F	51.1°F
Nov 30	49.1°F	52.2°F	51.1°F
Dec 1	49.5°F	52.2°F	51.0°F
Dec 2	49.5°F	51.8°F	50.8°F
Dec 3	49.4°F	51.9°F	50.6°F
Dec 4	49.4°F	51.7°F	50.7°F
Dec 5	49.3°F	51.6°F	50.4°F
Dec 6	49.7°F	51.3°F	50.3°F
Dec 7	50.2°F	51.1°F	50.3°F
Dec 8	50.3°F	50.1°F	50.3°F
Dec 9	50.3°F	49.5°F	50.0°F
Dec 10	50.1°F	49.6°F	49.9°F
Dec 11	50.0°F	49.7°F	49.7°F
Dec 12	49.9°F	49.9°F	49.7°F
Dec 13	49.9°F	49.9°F	49.7°F
Dec 14	50.0°F	49.6°F	49.7°F
Dec 15	49.9°F	50.1°F	49.6°F
Dec 16	49.4°F	48.8°F	49.1°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, 48.6°F in Spring, 58.2°F in Summer, and 56.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Dublin	49.7°F	5mi
Bray	50.8°F	6mi
Greystones	50.7°F	11mi

* current water temperature in this city

** straight line distance from Dún Laoghaire