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

51.9

°F

June 5, 14:05

Trend:

increasing

Yesterday:

50.3°F

Tomorrow:

52.0°F

Sunrise:

05:37

Sunset:

20:55

Day Length:

15 h. 18 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 51.9°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 1.7°F lower than 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 stay about the same.

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 61.0°F on 2023, while the historical minimum was 44.0°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 52.8°F, with minimum temperature starting at 52.0°F, while the maximum might reach 53.7°F.

Daily water temperature in Toronto

Date Current Year

actual* / forecast**

last year 10 years average
May 22 44.3°F 44.6°F 46.8°F
May 23 43.8°F 45.0°F 47.4°F
May 24 44.1°F 45.4°F 48.5°F
May 25 41.5°F 44.9°F 48.6°F
May 26 41.9°F 46.4°F 48.7°F
May 27 47.0°F 45.8°F 49.0°F
May 28 45.4°F 46.9°F 49.5°F
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 53.6°F
Jun 6 52.0°F 49.1°F 53.7°F
Jun 7 52.5°F 51.2°F 54.2°F
Jun 8 52.3°F 51.9°F 54.0°F
Jun 9 52.4°F 52.9°F 54.1°F
Jun 10 53.1°F 53.1°F 54.7°F
Jun 11 53.4°F 54.3°F 55.1°F
Jun 12 53.7°F 54.2°F 55.3°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.