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

55.5

°F

October 25, 11:31

Trend:

stable

Yesterday:

54.7°F

Tomorrow:

54.8°F

Sunrise:

07:44

Sunset:

18:19

Day Length:

10 h. 35 min.

Toronto in November

Minimum:

37.5°F

Average:

38.4°F

Maximum:

40.1°F

Water temperature in Toronto today

As of now, in Toronto, the water temperature is 55.5°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.6°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 considerably 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 59.5°F on 2017, while the historical minimum was 44.5°F on 2022.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 53.5°F, the minimum temperature may reach 52.9°F, and the maximum might stay at 54.8°F.

Daily water temperature in Toronto

Date Current Year

actual* / forecast**

last year 10 years average
Oct 11 61.4°F 64.1°F 61.4°F
Oct 12 60.1°F 62.9°F 60.7°F
Oct 13 60.4°F 63.4°F 60.4°F
Oct 14 60.0°F 63.3°F 60.3°F
Oct 15 59.8°F 63.5°F 60.2°F
Oct 16 59.5°F 63.8°F 59.8°F
Oct 17 56.2°F 62.7°F 59.1°F
Oct 18 58.7°F 62.3°F 59.0°F
Oct 19 56.9°F 62.5°F 58.3°F
Oct 20 55.4°F 62.0°F 57.6°F
Oct 21 55.9°F 61.6°F 57.3°F
Oct 22 54.2°F 61.3°F 56.4°F
Oct 23 55.3°F 60.9°F 56.0°F
Oct 24 54.7°F 60.5°F 55.4°F
Oct 25 55.5°F 59.5°F 54.9°F
Oct 26 54.8°F 58.4°F 54.2°F
Oct 27 54.3°F 57.9°F 53.7°F
Oct 28 53.3°F 57.9°F 52.7°F
Oct 29 53.2°F 57.6°F 52.5°F
Oct 30 52.9°F 56.8°F 52.3°F
Oct 31 52.9°F 56.0°F 52.3°F
Nov 1 53.1°F 55.3°F 52.5°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 57.8°F in Autumn.