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 16.93°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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.

62.5

°F

August 13, 13:28

Trend:

increasing

Yesterday:

62.3°F

Tomorrow:

62.6°F

Sunrise:

06:01

Sunset:

20:57

Day Length:

14 h. 56 min.

Greystones in August

Minimum:

45.2°F

Average:

48.3°F

Maximum:

49.8°F

Sea water temperature in Greystones today

As of now, in Greystones, the water temperature is 62.5°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 2.5°F higher 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 rise a bit.

Recent sea temperature and forecast

Today's reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 61.0°F on 2022, while the historical minimum was 59.0°F on 2016.

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 62.5°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
Jul 30	62.9°F	59.9°F	59.7°F
Jul 31	62.6°F	59.4°F	59.6°F
Aug 1	62.5°F	59.4°F	59.6°F
Aug 2	62.5°F	59.5°F	59.8°F
Aug 3	62.4°F	60.2°F	59.8°F
Aug 4	62.7°F	60.9°F	60.0°F
Aug 5	62.9°F	60.8°F	60.0°F
Aug 6	62.6°F	60.5°F	60.0°F
Aug 7	62.3°F	60.5°F	60.0°F
Aug 8	62.3°F	61.0°F	60.0°F
Aug 9	62.1°F	60.7°F	59.8°F
Aug 10	61.8°F	60.8°F	59.8°F
Aug 11	61.7°F	60.8°F	59.8°F
Aug 12	62.3°F	60.8°F	60.0°F
Aug 13	62.5°F	60.9°F	59.9°F
Aug 14	62.6°F	61.5°F	60.1°F
Aug 15	62.5°F	61.2°F	60.0°F
Aug 16	62.5°F	61.0°F	60.0°F
Aug 17	62.5°F	61.1°F	60.0°F
Aug 18	62.5°F	61.0°F	60.0°F
Aug 19	62.5°F	60.9°F	59.9°F
Aug 20	62.5°F	60.7°F	59.9°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 July 25, 2026, reaching a 63.4°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, 48.7°F in Spring, 58.1°F in Summer, and 56.7°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bray	62.5°F	5mi
Dún Laoghaire	63.4°F	11mi
Dublin	64.3°F	15mi

* current water temperature in this city

** straight line distance from Greystones