Water temperature in Port Whitby

This data the coastal Port Whitby 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 water temperature in Port Whitby

Water temperature in Port Whitby today is 18.4°C. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Ontario near Port Whitby was recorded in 2018 and was 21.8°C, and the coldest was recorded in 2014 at 17.1°C. Water temperature in Port Whitby is expected to rise to 18.7°C in the next 10 days. September average water temperature in Port Whitby is 19.6°C, the minimum temperature is 15.2°C, and the maximum is 23.7°C.

The swimming season in Port Whitby lasts from July to September. During those months, Port Whitby water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Port Whitby in winter reaches 3.6°C, in spring 4.6°C, in summer the average temperature rises to 18°C, and in autumn it is 13.8°C.

Port Whitby water temperature now

Surf Forecast in Port Whitby 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 Port Whitby. 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 Port Whitby. Data in table shown for 15 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Port Whitby

Port Whitby weather forecast

Current temperature and weather

Data in a table show Port Whitby temperature today (15 September 2025). For more information and forecast for a few days, go to the weather forecast Port Whitby.

0-3 h	3-6 h	6-9 h	9-12 h
18.8°C	16°C	15.5°C	16.9°C

12-15 h	15-18 h	18-21 h	21-24 h
20.4°C	23.9°C	21.4°C	17.9°C

Port Whitby water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Port Whitby. 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 Port Whitby 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 Port Whitby

The nearest beaches and cities from Port Whitby 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
Woodbine Beach	18°C	24°C		0.24 m
Kew Balmy Beach	18°C	24°C		0.24 m
Cherry Beach	17.9°C	24°C		0.22 m
Hanlan's Point	17.8°C	24°C		0.22 m
Toronto	17.9°C	24°C		0.22 m
Toronto Islands	17.8°C	24°C		0.22 m
Sunnyside Beach	17.6°C	24°C		0.19 m
Humber Bay	17.6°C	24°C		0.19 m
Wilson	20°C	23°C		0.21 m
Youngstown	19.8°C	23°C		0.22 m

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Our report for Port Whitby 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.