What is the current water temperature in Toronto?

Q: What is the current water temperature in Toronto?

As of now, in Toronto, the water temperature is 3.24°C. 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.

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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.

37.8

°F

March 11, 10:37

Trend:

stable

Yesterday:

36.5°F

Tomorrow:

37.8°F

Sunrise:

07:38

Sunset:

19:19

Day Length:

11 h. 41 min.

Toronto in March

Minimum:

37.5°F

Average:

39.0°F

Maximum:

40.4°F

Water temperature in Toronto today

As of now, in Toronto, the water temperature is 37.8°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 1.0°F higher 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 38.9°F on 2017, while the historical minimum was 35.0°F on 2019.

latest data

last year

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 37.8°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
Feb 25	35.2°F	35.9°F	36.3°F
Feb 26	35.3°F	35.7°F	36.4°F
Feb 27	35.2°F	35.7°F	36.5°F
Feb 28	35.2°F	35.6°F	36.6°F
Mar 1	35.5°F	36.0°F	36.4°F
Mar 2	34.8°F	36.2°F	36.4°F
Mar 3	34.5°F	35.7°F	36.3°F
Mar 4	34.6°F	35.6°F	36.2°F
Mar 5	34.7°F	35.3°F	36.1°F
Mar 6	35.4°F	35.4°F	36.3°F
Mar 7	34.6°F	35.7°F	36.5°F
Mar 8	34.7°F	35.8°F	36.5°F
Mar 9	36.0°F	36.2°F	36.5°F
Mar 10	36.5°F	36.7°F	36.8°F
Mar 11	37.8°F	36.6°F	36.8°F
Mar 12	37.8°F	36.5°F	36.8°F
Mar 13	37.7°F	35.2°F	36.8°F
Mar 14	37.8°F	33.9°F	36.8°F
Mar 15	37.6°F	33.9°F	36.6°F
Mar 16	37.6°F	33.0°F	36.6°F
Mar 17	37.8°F	33.3°F	36.8°F
Mar 18	38.3°F	37.9°F	37.3°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, 40.5°F in Spring, 64.7°F in Summer, and 57.9°F in Autumn.