Water temperature in Silloth

This data the coastal Silloth 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 Silloth

Water temperature in Silloth today is 13.3°C. Based on our historical data over a period of ten years, the warmest water in this day in the Irish Sea near Silloth was recorded in 2021 and was 16.3°C, and the coldest was recorded in 2018 at 12.9°C. Sea water temperature in Silloth is expected to drop to 13.2°C in the next 10 days. September average water temperature in Silloth is 15°C, the minimum temperature is 12.4°C, and the maximum is 18.3°C.

Throughout the year, the water temperature in Silloth does not rise above 20°C and therefore is not suitable for comfortable swimming. The average water temperature in Silloth in winter reaches 6.1°C, in spring 8.9°C, in summer the average temperature rises to 16.1°C, and in autumn it is 12.4°C.

Silloth water temperature now

The sea salinity in Silloth is 30.45‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Silloth 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 Silloth. 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 Silloth. 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 Silloth

Silloth weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
7.2°C	6.3°C	5.9°C	11.6°C

12-15 h	15-18 h	18-21 h	21-24 h
15.2°C	15.5°C	10.7°C	8.3°C

Silloth water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Silloth. 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 Silloth 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 Silloth

The nearest beaches and cities from Silloth 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
Allonby	14.1°C	15°C		0.19 m
Rockcliffe	14.7°C	14°C		0.45 m
Workington	14.7°C	15°C		0.34 m
Whitehaven	15.2°C	15°C		0.42 m
St Bees	15.4°C	15°C		0.45 m
Silecroft	14.9°C	15°C		0.27 m
Askam in Furness	14.9°C	15°C		0.22 m
Grange-over-Sands	13.6°C	16°C		0.08 m
Arnside	13.7°C	14°C		0.08 m
Ramsey	15.3°C	12°C		0.57 m

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Our report for Silloth 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.