What is the current water temperature in Greystones?

Q: What is the current water temperature in Greystones?

As of now, in Greystones, the water temperature is 9.7°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 > Greystones

Water temperature in Greystones

Detailed information about the current water temperature in Greystones. 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.

49.5

°F

April 24, 18:16

Trend:

stable

Yesterday:

49.5°F

Tomorrow:

49.6°F

Sunrise:

06:06

Sunset:

20:40

Day Length:

14 h. 34 min.

Greystones in April

Minimum:

46.4°F

Average:

49.0°F

Maximum:

50.3°F

Sea water temperature in Greystones today

As of now, in Greystones, the water temperature is 49.5°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 0.7°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

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 50.0°F on 2017, while the historical minimum was 47.3°F on 2018.

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 49.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Greystones

Date	Current Year actual* / forecast**	last year	10 years average
Apr 10	48.8°F	49.0°F	47.5°F
Apr 11	48.9°F	49.0°F	47.6°F
Apr 12	49.2°F	48.8°F	47.6°F
Apr 13	49.1°F	48.9°F	47.6°F
Apr 14	49.2°F	49.2°F	47.7°F
Apr 15	49.2°F	49.2°F	47.9°F
Apr 16	49.1°F	49.1°F	47.9°F
Apr 17	49.0°F	49.3°F	47.9°F
Apr 18	48.8°F	48.8°F	48.0°F
Apr 19	48.8°F	48.6°F	48.0°F
Apr 20	48.8°F	48.7°F	48.2°F
Apr 21	48.7°F	48.9°F	48.5°F
Apr 22	49.4°F	48.9°F	48.8°F
Apr 23	49.5°F	49.2°F	48.8°F
Apr 24	49.5°F	49.5°F	48.7°F
Apr 25	49.6°F	49.5°F	48.9°F
Apr 26	49.7°F	49.6°F	49.0°F
Apr 27	49.6°F	49.7°F	48.9°F
Apr 28	49.6°F	49.7°F	48.9°F
Apr 29	49.7°F	49.8°F	49.0°F
Apr 30	49.8°F	49.9°F	49.1°F
May 1	49.9°F	49.9°F	49.2°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 Greystones by month

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

The warmest water in Greystones was recorded on September 10, 2023, reaching a 62.3°F. While the coldest temperature occurred on March 11, 2018, dipping to 43.0°F. The average readings by season are 48.0°F in Winter, 48.4°F in Spring, 57.7°F in Summer, and 56.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bray	49.3°F	5mi
Dún Laoghaire	49.5°F	11mi
Dublin	49.6°F	15mi

* current water temperature in this city

** straight line distance from Greystones