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 8.15°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 > 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.

46.7

°F

January 9, 01:20

Trend:

decreasing

Yesterday:

46.8°F

Tomorrow:

46.4°F

Sunrise:

08:36

Sunset:

16:28

Day Length:

7 h. 52 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 46.7°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 1.7°F lower 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 fall a bit.

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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 49.4°F on 2022, while the historical minimum was 45.0°F on 2021.

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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 46.2°F, the minimum temperature may reach 46.0°F, and the maximum might stay at 46.4°F.

Daily water temperature in Greystones

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	49.0°F	48.5°F	49.3°F
Jan 2	48.5°F	49.2°F	49.2°F
Jan 3	48.5°F	49.0°F	49.0°F
Jan 4	48.1°F	49.0°F	49.0°F
Jan 5	47.4°F	48.9°F	48.8°F
Jan 6	46.9°F	48.7°F	48.5°F
Jan 7	46.6°F	48.0°F	48.3°F
Jan 8	46.8°F	47.6°F	48.4°F
Jan 9	46.7°F	47.5°F	48.3°F
Jan 10	46.4°F	47.1°F	48.1°F
Jan 11	46.3°F	47.0°F	48.0°F
Jan 12	46.2°F	46.5°F	47.9°F
Jan 13	46.2°F	46.7°F	47.9°F
Jan 14	46.2°F	47.6°F	47.9°F
Jan 15	46.0°F	47.0°F	47.6°F
Jan 16	46.0°F	47.8°F	47.6°F
Dec 26	50.4°F	48.3°F	49.4°F
Dec 27	50.0°F	48.3°F	49.3°F
Dec 28	49.9°F	48.2°F	49.2°F
Dec 29	49.8°F	48.0°F	49.1°F
Dec 30	49.7°F	48.2°F	49.3°F
Dec 31	49.4°F	48.5°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 48.1°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	46.4°F	5mi
Dún Laoghaire	45.9°F	11mi
Dublin	45.4°F	15mi

* current water temperature in this city

** straight line distance from Greystones