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

55.4

°F

June 12, 14:37

Trend:

stable

Yesterday:

53.9°F

Tomorrow:

55.1°F

Sunrise:

05:35

Sunset:

21:00

Day Length:

15 h. 25 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 55.4°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 about the same as the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 notably higher than the average recorded over the past two weeks, indicating a significant warming 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 59.2°F on 2023, while the historical minimum was 47.0°F on 2019.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 56.0°F, with minimum temperature starting at 55.1°F, while the maximum might reach 57.5°F.

Daily water temperature in Toronto

Date Current Year

actual* / forecast**

last year 10 years average
May 29 45.9°F 48.1°F 50.2°F
May 30 46.9°F 47.7°F 51.0°F
May 31 45.3°F 48.2°F 51.3°F
Jun 1 46.5°F 48.1°F 51.1°F
Jun 2 47.1°F 47.0°F 51.7°F
Jun 3 48.2°F 47.1°F 51.5°F
Jun 4 50.3°F 47.9°F 52.9°F
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 55.1°F 54.1°F 55.1°F
Jun 14 55.4°F 54.5°F 55.4°F
Jun 15 55.5°F 55.0°F 55.5°F
Jun 16 55.8°F 55.2°F 55.7°F
Jun 17 56.2°F 56.5°F 56.2°F
Jun 18 56.9°F 58.3°F 56.8°F
Jun 19 57.5°F 58.4°F 57.4°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.