Water temperature in Fethard on Sea

This data the coastal Fethard on Sea sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Fethard on Sea

Water temperature in Fethard on Sea today is 15.4°C. Based on our historical data over a period of ten years, the warmest water in this day in the Celtic Sea near Fethard on Sea was recorded in 2023 and was 15.8°C, and the coldest was recorded in 2015 at 14.1°C. Sea water temperature in Fethard on Sea is expected to drop to 14.5°C in the next 10 days. September average water temperature in Fethard on Sea is 15.2°C, the minimum temperature is 13.9°C, and the maximum is 17.9°C.

Throughout the year, the water temperature in Fethard on Sea does not rise above 20°C and therefore is not suitable for comfortable swimming. The average water temperature in Fethard on Sea in winter reaches 9.3°C, in spring 9.7°C, in summer the average temperature rises to 14.5°C, and in autumn it is 13.9°C.

Fethard on Sea water temperature now

The sea salinity in Fethard on Sea is 33.74‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Fethard on Sea for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Fethard on Sea. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Fethard on Sea. Data in table shown for 26 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Fethard on Sea

Fethard on Sea weather forecast

Current temperature and weather

Data in a table show Fethard on Sea temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Fethard on Sea.

0-3 h	3-6 h	6-9 h	9-12 h
8.6°C	8.9°C	8.8°C	14.1°C

12-15 h	15-18 h	18-21 h	21-24 h
15.5°C	14.9°C	13°C	13.2°C

Fethard on Sea water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Fethard on Sea. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Fethard on Sea on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Fethard on Sea

The nearest beaches and cities from Fethard on Sea with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Bunmahon	15.3°C	15°C		0.88 m
Stradbally	15.2°C	15°C		0.84 m
Morriscastle	15.8°C	15°C		0.71 m
Cahore	15.7°C	15°C		0.68 m
Dungarvan	14.9°C	15°C		1.03 m
Ballymoney Beach	15.5°C	14°C		0.59 m
Ardmore	15.3°C	14°C		0.98 m
Youghal	15.1°C	14°C		0.99 m
Arklow	15.6°C	14°C		0.67 m
Garryvoe	15.2°C	14°C		0.99 m

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Our report for Fethard on Sea is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.