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

49.3

°F

June 26, 16:03

Trend:

stable

Yesterday:

48.7°F

Tomorrow:

49.3°F

Sunrise:

05:37

Sunset:

21:03

Day Length:

15 h. 26 min.

Toronto in July

Minimum:

37.2°F

Average:

38.6°F

Maximum:

39.5°F

Water temperature in Toronto today

As of now, in Toronto, the water temperature is 49.3°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 11.1°F lower 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 stay about the same.

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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 69.5°F on 2020, while the historical minimum was 54.9°F on 2019.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 49.5°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Toronto

Date Current Year

actual* / forecast**

last year 10 years average
Jun 12 55.4°F 54.2°F 55.3°F
Jun 13 55.7°F 54.1°F 55.1°F
Jun 14 55.8°F 54.5°F 55.4°F
Jun 15 55.0°F 55.0°F 55.4°F
Jun 16 51.3°F 55.2°F 55.3°F
Jun 17 50.5°F 56.5°F 55.6°F
Jun 18 49.3°F 58.3°F 56.2°F
Jun 19 49.2°F 58.4°F 56.7°F
Jun 20 47.8°F 59.3°F 56.7°F
Jun 21 46.1°F 58.8°F 57.1°F
Jun 22 46.3°F 57.5°F 57.1°F
Jun 23 47.6°F 57.1°F 58.2°F
Jun 24 48.3°F 57.3°F 58.4°F
Jun 25 48.7°F 57.8°F 58.3°F
Jun 26 49.3°F 58.3°F 60.4°F
Jun 27 49.3°F 59.0°F 60.4°F
Jun 28 49.3°F 59.7°F 60.4°F
Jun 29 49.1°F 61.0°F 60.3°F
Jun 30 48.7°F 58.9°F 59.9°F
Jul 1 49.7°F 62.0°F 60.9°F
Jul 2 50.0°F 63.4°F 61.2°F
Jul 3 50.3°F 62.8°F 61.5°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, 64.6°F in Summer, and 57.9°F in Autumn.