All data are in degrees Fahrenheit

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Water temperature in Toronto

Detailed information about the current water temperature in Toronto. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Water temperature in Toronto now

64.2

°F

October 3, 05:43

Trend:

stable

Yesterday:

63.9°F

Tomorrow:

63.8°F

Sunrise:

07:17

Sunset:

18:55

Day Length:

11 h. 38 min.

Toronto in October

Minimum:

37.3°F

Average:

38.4°F

Maximum:

39.5°F

Water temperature in Toronto today

As of now, in Toronto, the water temperature is 64.2°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 0.2°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent water temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 67.0°F on 2024, while the historical minimum was 60.0°F on 2022.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 63.1°F, the minimum temperature may reach 62.0°F, and the maximum might stay at 63.8°F.

Daily water temperature in Toronto

Date Current Year

actual* / forecast**

last year 10 years average
Sep 19 66.8°F 66.2°F 67.2°F
Sep 20 67.1°F 66.8°F 67.3°F
Sep 21 66.3°F 66.7°F 67.2°F
Sep 22 64.6°F 65.9°F 67.1°F
Sep 23 64.4°F 65.5°F 67.1°F
Sep 24 64.6°F 64.8°F 66.8°F
Sep 25 64.7°F 64.5°F 66.5°F
Sep 26 64.9°F 64.2°F 66.3°F
Sep 27 64.9°F 66.4°F 66.4°F
Sep 28 64.7°F 66.9°F 66.2°F
Sep 29 64.4°F 67.4°F 65.7°F
Sep 30 64.2°F 67.2°F 65.4°F
Oct 1 64.2°F 67.6°F 64.6°F
Oct 2 63.9°F 67.2°F 64.3°F
Oct 3 64.2°F 65.9°F 64.0°F
Oct 4 63.8°F 65.6°F 63.6°F
Oct 5 63.8°F 65.8°F 63.6°F
Oct 6 63.7°F 67.2°F 63.5°F
Oct 7 63.3°F 67.6°F 63.1°F
Oct 8 63.1°F 66.9°F 62.9°F
Oct 9 62.4°F 66.1°F 62.2°F
Oct 10 62.0°F 64.5°F 61.8°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Water temperature in Toronto by month

In an average year, Toronto offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Toronto was recorded on August 13, 2025, reaching a 77.6°F. While the coldest temperature occurred on March 16, 2025, dipping to 33.0°F. The average readings by season are 38.3°F in Winter, 40.3°F in Spring, 64.5°F in Summer, and 57.9°F in Autumn.