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

49.2

°F

June 19, 15:33

Trend:

stable

Yesterday:

49.3°F

Tomorrow:

49.4°F

Sunrise:

05:36

Sunset:

21:02

Day Length:

15 h. 26 min.

Toronto in June

Minimum:

37.1°F

Average:

38.7°F

Maximum:

40.0°F

Water temperature in Toronto today

As of now, in Toronto, the water temperature is 49.2°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 8.2°F lower than the average recorded on this particular day in recent years. The water temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to rise 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 62.1°F on 2017, while the historical minimum was 48.5°F on 2019.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 50.7°F, with minimum temperature starting at 49.4°F, while the maximum might reach 52.2°F.

Daily water temperature in Toronto

Date Current Year

actual* / forecast**

last year 10 years average
Jun 5 51.9°F 49.3°F 53.4°F
Jun 6 51.5°F 49.1°F 53.5°F
Jun 7 51.0°F 51.2°F 53.9°F
Jun 8 51.8°F 51.9°F 53.8°F
Jun 9 53.4°F 52.9°F 54.0°F
Jun 10 55.5°F 53.1°F 54.8°F
Jun 11 53.9°F 54.3°F 55.0°F
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 57.4°F
Jun 20 49.4°F 59.3°F 57.6°F
Jun 21 49.9°F 58.8°F 58.2°F
Jun 22 50.0°F 57.5°F 58.2°F
Jun 23 51.1°F 57.1°F 59.3°F
Jun 24 51.1°F 57.3°F 59.3°F
Jun 25 51.0°F 57.8°F 59.3°F
Jun 26 52.2°F 58.3°F 60.4°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, 64.7°F in Summer, and 57.9°F in Autumn.