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 9.69°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.

49.4

°F

April 19, 05:44

Trend:

stable

Yesterday:

49.6°F

Tomorrow:

49.7°F

Sunrise:

06:17

Sunset:

20:32

Day Length:

14 h. 15 min.

Dún Laoghaire in April

Minimum:

45.3°F

Average:

48.4°F

Maximum:

50.4°F

Sea water temperature in Dún Laoghaire today

As of now, in Dún Laoghaire, the water temperature is 49.4°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 1.3°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 rise a bit.

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 49.2°F on 2023, while the historical minimum was 45.9°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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 50.3°F, with minimum temperature starting at 49.7°F, while the maximum might reach 50.6°F.

Daily water temperature in Dún Laoghaire

Date	Current Year actual* / forecast**	last year	10 years average
Apr 5	47.9°F	48.6°F	47.3°F
Apr 6	47.8°F	49.1°F	47.4°F
Apr 7	48.2°F	48.8°F	47.6°F
Apr 8	47.9°F	49.0°F	47.6°F
Apr 9	47.9°F	49.6°F	47.6°F
Apr 10	48.5°F	49.8°F	47.7°F
Apr 11	48.5°F	49.6°F	47.7°F
Apr 12	48.1°F	50.1°F	47.9°F
Apr 13	47.9°F	50.0°F	47.9°F
Apr 14	48.2°F	50.1°F	48.0°F
Apr 15	48.2°F	50.0°F	48.1°F
Apr 16	48.7°F	49.7°F	48.2°F
Apr 17	48.8°F	49.4°F	48.2°F
Apr 18	49.6°F	49.1°F	48.3°F
Apr 19	49.4°F	49.1°F	48.1°F
Apr 20	49.7°F	49.0°F	48.4°F
Apr 21	50.1°F	48.9°F	48.8°F
Apr 22	50.4°F	49.1°F	49.1°F
Apr 23	50.5°F	49.5°F	49.2°F
Apr 24	50.3°F	49.5°F	49.0°F
Apr 25	50.5°F	49.4°F	49.2°F
Apr 26	50.6°F	49.5°F	49.3°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 47.5°F in Winter, 48.7°F in Spring, 58.5°F in Summer, and 56.5°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Dublin	49.4°F	5mi
Bray	49.4°F	6mi
Greystones	49.4°F	11mi

* current water temperature in this city

** straight line distance from Dún Laoghaire