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 14.15°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.

57.5

°F

October 10, 21:48

Trend:

decreasing

Yesterday:

57.5°F

Tomorrow:

57.3°F

Sunrise:

07:41

Sunset:

18:41

Day Length:

11 h. 0 min.

Dún Laoghaire in October

Minimum:

44.4°F

Average:

47.5°F

Maximum:

49.2°F

Sea water temperature in Dún Laoghaire today

As of now, in Dún Laoghaire, the water temperature is 57.5°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 0.4°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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. 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 58.6°F on 2023, while the historical minimum was 55.8°F on 2018.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 57.1°F, the minimum temperature may reach 56.7°F, and the maximum might stay at 57.4°F.

Daily water temperature in Dún Laoghaire

Date	Current Year actual* / forecast**	last year	10 years average
Sep 26	59.0°F	58.0°F	58.6°F
Sep 27	59.1°F	57.9°F	58.6°F
Sep 28	58.6°F	57.4°F	58.3°F
Sep 29	58.7°F	57.3°F	58.1°F
Sep 30	58.7°F	57.2°F	58.1°F
Oct 1	58.7°F	57.3°F	58.1°F
Oct 2	58.5°F	57.3°F	58.0°F
Oct 3	58.4°F	57.0°F	57.8°F
Oct 4	58.7°F	57.0°F	57.7°F
Oct 5	58.5°F	56.9°F	57.6°F
Oct 6	58.1°F	56.8°F	57.5°F
Oct 7	58.5°F	56.6°F	57.4°F
Oct 8	58.1°F	57.1°F	57.4°F
Oct 9	57.5°F	56.9°F	57.2°F
Oct 10	57.5°F	56.8°F	57.0°F
Oct 11	57.3°F	56.4°F	56.9°F
Oct 12	57.4°F	56.3°F	57.0°F
Oct 13	57.2°F	56.0°F	56.8°F
Oct 14	57.1°F	55.9°F	56.6°F
Oct 15	56.9°F	55.9°F	56.5°F
Oct 16	56.8°F	55.8°F	56.4°F
Oct 17	56.7°F	55.6°F	56.2°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	57.3°F	5mi
Bray	57.7°F	6mi
Greystones	58.0°F	11mi

* current water temperature in this city

** straight line distance from Dún Laoghaire