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 8.1°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.

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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.

46.6

°F

January 23, 08:25

Trend:

stable

Yesterday:

46.3°F

Tomorrow:

46.5°F

Sunrise:

08:22

Sunset:

16:51

Day Length:

8 h. 29 min.

Greystones in January

Minimum:

47.0°F

Average:

49.3°F

Maximum:

51.0°F

Sea water temperature in Greystones today

As of now, in Greystones, the water temperature is 46.6°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 0.5°F lower 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

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 48.3°F on 2017, while the historical minimum was 45.4°F on 2021.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 46.4°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
Jan 9	46.9°F	47.5°F	48.2°F
Jan 10	45.8°F	47.1°F	47.8°F
Jan 11	46.1°F	47.0°F	47.8°F
Jan 12	46.0°F	46.5°F	47.7°F
Jan 13	46.4°F	46.7°F	47.8°F
Jan 14	45.9°F	47.6°F	47.7°F
Jan 15	45.8°F	47.0°F	47.5°F
Jan 16	46.0°F	47.8°F	47.5°F
Jan 17	45.6°F	47.5°F	47.3°F
Jan 18	46.0°F	47.2°F	47.3°F
Jan 19	45.8°F	47.1°F	47.2°F
Jan 20	46.1°F	47.1°F	47.2°F
Jan 21	46.2°F	47.2°F	47.2°F
Jan 22	46.3°F	47.6°F	47.1°F
Jan 23	46.6°F	47.2°F	47.1°F
Jan 24	46.5°F	47.0°F	47.0°F
Jan 25	46.5°F	46.8°F	47.0°F
Jan 26	46.5°F	47.0°F	47.0°F
Jan 27	46.6°F	46.7°F	47.0°F
Jan 28	46.4°F	46.1°F	46.9°F
Jan 29	46.3°F	46.2°F	46.8°F
Jan 30	46.3°F	46.0°F	46.8°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, 48.6°F in Spring, 57.9°F in Summer, and 56.7°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bray	46.3°F	5mi
Dún Laoghaire	45.6°F	11mi
Dublin	45.1°F	15mi

* current water temperature in this city

** straight line distance from Greystones