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 4.32°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.

39.8

°F

April 24, 11:36

Trend:

increasing

Yesterday:

38.7°F

Tomorrow:

40.2°F

Sunrise:

06:21

Sunset:

20:12

Day Length:

13 h. 51 min.

Toronto in April

Minimum:

37.5°F

Average:

38.8°F

Maximum:

40.5°F

Water temperature in Toronto today

As of now, in Toronto, the water temperature is 39.8°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 0.4°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 rise 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 42.4°F on 2024, while the historical minimum was 37.4°F on 2018.

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 40.3°F, with minimum temperature starting at 40.1°F, while the maximum might reach 40.5°F.

Daily water temperature in Toronto

Date	Current Year actual* / forecast**	last year	10 years average
Apr 10	36.7°F	37.6°F	38.2°F
Apr 11	36.6°F	37.5°F	38.2°F
Apr 12	37.1°F	37.6°F	38.1°F
Apr 13	37.1°F	38.3°F	38.3°F
Apr 14	35.9°F	37.5°F	38.9°F
Apr 15	35.8°F	37.5°F	38.9°F
Apr 16	36.0°F	38.9°F	39.0°F
Apr 17	35.8°F	38.9°F	39.3°F
Apr 18	37.2°F	38.6°F	39.4°F
Apr 19	37.9°F	38.5°F	39.6°F
Apr 20	39.6°F	38.5°F	40.0°F
Apr 21	38.4°F	39.5°F	40.0°F
Apr 22	36.8°F	37.9°F	39.9°F
Apr 23	38.7°F	40.7°F	39.8°F
Apr 24	39.8°F	39.1°F	40.1°F
Apr 25	40.2°F	40.4°F	40.5°F
Apr 26	40.5°F	37.8°F	40.9°F
Apr 27	40.1°F	38.6°F	40.5°F
Apr 28	40.4°F	41.2°F	40.7°F
Apr 29	40.2°F	40.7°F	40.6°F
Apr 30	40.2°F	40.9°F	40.5°F
May 1	40.3°F	41.0°F	40.7°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, 40.4°F in Spring, 64.7°F in Summer, and 57.9°F in Autumn.