Water temperature in Marystown

This data the coastal Marystown 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 Marystown

Water temperature in Marystown today is 11.2°C. Based on our historical data over a period of ten years, the warmest water in this day in Marystown was recorded in 2021 and was 12.4°C, and the coldest was recorded in 2009 at 8.5°C. Sea water temperature in Marystown is expected to drop to 9.7°C in the next 10 days. October average water temperature in Marystown is 11°C, the minimum temperature is 6.2°C, and the maximum is 14.8°C.

Throughout the year, the water temperature in Marystown does not rise above 20°C and therefore is not suitable for comfortable swimming. The average water temperature in Marystown in winter reaches 2.3°C, in spring 1.9°C, in summer the average temperature rises to 11.9°C, and in autumn it is 10.9°C.

Marystown water temperature now

The sea salinity in Marystown is 30.98‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Marystown 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 Marystown. 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 Marystown. Data in table shown for 17 October 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Marystown

Marystown weather forecast

Current temperature and weather

Data in a table show Marystown temperature today (17 October 2025). For more information and forecast for a few days, go to the weather forecast Marystown.

0-3 h	3-6 h	6-9 h	9-12 h
8.8°C	9.2°C	9.1°C	8.9°C

12-15 h	15-18 h	18-21 h	21-24 h
9.8°C	9.9°C	9.7°C	9.4°C

Marystown water temperature by month

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

The nearest beaches and cities from Marystown 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
Clarenville	9.9°C	10°C		0.3 m
Conception Bay South	10.4°C	10°C		0.39 m
Torbay	9.5°C	9°C		1.05 m
St. John's	9.3°C	10°C		1.33 m
Catalina	8.5°C	9°C		1.14 m
Botwood	8.7°C	7°C		0.33 m
Bonavista	9.7°C	9°C		1.43 m
Newtown	7°C	8°C		0.91 m
Gander Bay	8.6°C	6°C		0.27 m
Twillingate	8°C	6°C		0.38 m

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Our report for Marystown 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.