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 12.98°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.

55.4

°F

May 17, 00:10

Trend:

stable

Yesterday:

55.2°F

Tomorrow:

55.3°F

Sunrise:

05:22

Sunset:

21:20

Day Length:

15 h. 58 min.

Dún Laoghaire in May

Minimum:

45.6°F

Average:

48.4°F

Maximum:

49.9°F

Sea water temperature in Dún Laoghaire today

As of now, in Dún Laoghaire, the water temperature is 55.4°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 3.7°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

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 53.4°F on 2024, while the historical minimum was 49.9°F on 2015.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 55.7°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
May 3	51.6°F	50.7°F	49.9°F
May 4	51.8°F	50.6°F	50.2°F
May 5	52.1°F	50.5°F	50.4°F
May 6	52.2°F	50.3°F	50.4°F
May 7	52.3°F	50.4°F	50.5°F
May 8	52.7°F	50.9°F	50.7°F
May 9	52.8°F	51.8°F	51.0°F
May 10	52.6°F	51.6°F	50.9°F
May 11	52.6°F	51.7°F	50.9°F
May 12	52.7°F	51.7°F	51.0°F
May 13	54.3°F	52.1°F	51.4°F
May 14	55.0°F	52.3°F	51.6°F
May 15	54.8°F	53.3°F	51.8°F
May 16	55.2°F	53.6°F	51.5°F
May 17	55.4°F	53.4°F	51.7°F
May 18	55.3°F	53.6°F	51.7°F
May 19	55.5°F	54.0°F	51.9°F
May 20	55.7°F	54.4°F	52.0°F
May 21	55.8°F	54.6°F	52.1°F
May 22	55.8°F	54.4°F	52.1°F
May 23	55.9°F	54.2°F	52.2°F
May 24	56.0°F	54.1°F	52.3°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, 48.5°F in Spring, 58.1°F in Summer, and 56.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Dublin	55.8°F	5mi
Bray	54.5°F	6mi
Greystones	53.7°F	11mi

* current water temperature in this city

** straight line distance from Dún Laoghaire