Water temperature in Saint Leonards-on-Sea

This data the coastal Saint Leonards-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 Saint Leonards-on-Sea

Water temperature in Saint Leonards-on-Sea today is 18.7°C. Based on our historical data over a period of ten years, the warmest water in this day in the English Channel near Saint Leonards-on-Sea was recorded in 2022 and was 20°C, and the coldest was recorded in 2011 at 16.8°C. Sea water temperature in Saint Leonards-on-Sea is expected to drop to 17.6°C in the next 10 days. September average water temperature in Saint Leonards-on-Sea is 17.5°C, the minimum temperature is 16°C, and the maximum is 20°C.

Throughout the year, the water temperature in Saint Leonards-on-Sea does not rise above 20°C and therefore is not suitable for comfortable swimming. The average water temperature in Saint Leonards-on-Sea in winter reaches 9.1°C, in spring 9.7°C, in summer the average temperature rises to 16.4°C, and in autumn it is 15.6°C.

Saint Leonards-on-Sea water temperature now

The sea salinity in Saint Leonards-on-Sea is 31.85‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Saint Leonards-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 Saint Leonards-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 Saint Leonards-on-Sea. Data in table shown for 5 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Saint Leonards-on-Sea

Saint Leonards-on-Sea weather forecast

Current temperature and weather

Data in a table show Saint Leonards-on-Sea temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Saint Leonards-on-Sea.

0-3 h	3-6 h	6-9 h	9-12 h
14.4°C	13.7°C	13.9°C	17°C

12-15 h	15-18 h	18-21 h	21-24 h
18.8°C	19°C	17.3°C	15.8°C

Saint Leonards-on-Sea water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Saint Leonards-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 Saint Leonards-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 Saint Leonards-on-Sea

The nearest beaches and cities from Saint Leonards-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
Pett Level	18.7°C	19°C		0.6 m
Fairlight Cove	18.7°C	19°C		0.6 m
Bexhill-on-Sea	18.6°C	19°C		0.67 m
Winchelsea Beach	18.7°C	19°C		0.6 m
Camber Sands	18.7°C	19°C		0.6 m
Rye	18.7°C	19°C		0.6 m
Normans Bay	18.6°C	19°C		0.72 m
Pevensey Bay	18.6°C	19°C		0.67 m
Dungeness	18.5°C	19°C		0.74 m
Greatstone	18.6°C	19°C		0.54 m

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St Leonards-on-Sea

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Our report for Saint Leonards-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.