Water temperature in Charlottetown

This data the coastal Charlottetown 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 Charlottetown

Water temperature in Charlottetown today is 20.3°C. Based on our historical data over a period of ten years, the warmest water in this day in the Gulf of Saint Lawrence near Charlottetown was recorded in 2022 and was 20.6°C, and the coldest was recorded in 2007 at 17.2°C. Sea water temperature in Charlottetown is expected to drop to 17.5°C in the next 10 days. September average water temperature in Charlottetown is 17.4°C, the minimum temperature is 14.5°C, and the maximum is 21.6°C.

The swimming season in Charlottetown lasts only one month - August. During this month, Charlottetown water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Charlottetown in winter reaches 0.2°C, in spring 2.4°C, in summer the average temperature rises to 16.9°C, and in autumn it is 12.7°C.

Charlottetown water temperature now

The sea salinity in Charlottetown is 27.51‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Charlottetown 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 Charlottetown. 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 Charlottetown. 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 Charlottetown

Charlottetown weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
16.8°C	15°C	14.7°C	17.2°C

12-15 h	15-18 h	18-21 h	21-24 h
20°C	23.3°C	22°C	19.5°C

Charlottetown water temperature by month

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

The nearest beaches and cities from Charlottetown 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
Cornwall	20.2°C	23°C		0.17 m
Tea Hill	21.1°C	23°C		0.14 m
Brackley Beach	19.7°C	23°C		0.23 m
Stanhope Beach	20.3°C	23°C		0.23 m
Canoe Cove	20.3°C	23°C		0.22 m
Argyle Shore	20.4°C	23°C		0.22 m
North Rustico	19.5°C	23°C		0.23 m
Lakeside Beach	19.9°C	22°C		0.14 m
Northumberland Strait	19.8°C	20°C		0.18 m
Greenwich	19.6°C	22°C		0.24 m

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Our report for Charlottetown 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.