Water temperature in Toronto Islands

This data the coastal Toronto Islands 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 Toronto Islands

Water temperature in Toronto Islands today is 16.6°C. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Ontario near Toronto Islands was recorded in 2021 and was 16.1°C, and the coldest was recorded in 2022 at 7.5°C. Water temperature in Toronto Islands is expected to drop to 10.2°C in the next 10 days. October average water temperature in Toronto Islands is 14.3°C, the minimum temperature is 6.1°C, and the maximum is 19.9°C.

The swimming season in Toronto Islands lasts from July to September. During those months, Toronto Islands water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Toronto Islands in winter reaches 3.9°C, in spring 4.6°C, in summer the average temperature rises to 18.6°C, and in autumn it is 14°C.

Toronto Islands water temperature now

Surf Forecast in Toronto Islands 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 Toronto Islands. 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 Toronto Islands. Data in table shown for 22 October 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Toronto Islands

Toronto Islands weather forecast

Current temperature and weather

Data in a table show Toronto Islands temperature today (22 October 2025). For more information and forecast for a few days, go to the weather forecast Toronto Islands.

0-3 h	3-6 h	6-9 h	9-12 h
7.7°C	8.1°C	8.6°C	8.8°C

12-15 h	15-18 h	18-21 h	21-24 h
9.5°C	10.2°C	9.7°C	9.4°C

Toronto Islands water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Toronto Islands. 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 Toronto Islands 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 Toronto Islands

The nearest beaches and cities from Toronto Islands 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
Centre Island Beach	16.6°C	10°C		0.42 m
Hanlan's Point	16.5°C	10°C		0.42 m
Sunnyside Beach	16.5°C	10°C		0.35 m
Humber Bay	16.5°C	10°C		0.35 m
Kew Beach	16.5°C	10°C		0.49 m
Kew Balmy Beach	16.5°C	10°C		0.49 m
Scarborough Bluffs	16.4°C	10°C		0.45 m
Bluffer's Park Beach	16.4°C	10°C		0.45 m
Port Credit	16.6°C	11°C		0.44 m
Rouge Beach	16.5°C	11°C		0.45 m

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Our report for Toronto Islands 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.