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

51.5

°F

May 18, 15:58

Trend:

stable

Yesterday:

50.3°F

Tomorrow:

51.3°F

Sunrise:

05:49

Sunset:

20:40

Day Length:

14 h. 51 min.

Toronto in May

Minimum:

36.4°F

Average:

38.6°F

Maximum:

40.0°F

Water temperature in Toronto today

As of now, in Toronto, the water temperature is 51.5°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 6.7°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 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 49.4°F on 2022, while the historical minimum was 39.7°F on 2019.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest 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 52.6°F, with minimum temperature starting at 51.3°F, while the maximum might reach 54.5°F.

Daily water temperature in Toronto

Date Current Year

actual* / forecast**

last year 10 years average
May 4 45.2°F 42.4°F 41.2°F
May 5 46.4°F 41.5°F 41.2°F
May 6 46.1°F 41.3°F 41.2°F
May 7 45.2°F 43.8°F 41.5°F
May 8 47.7°F 43.6°F 42.3°F
May 9 46.6°F 45.8°F 42.4°F
May 10 46.4°F 45.7°F 42.6°F
May 11 46.2°F 46.8°F 42.4°F
May 12 46.2°F 46.7°F 42.4°F
May 13 46.3°F 47.0°F 42.5°F
May 14 46.7°F 46.9°F 42.9°F
May 15 48.3°F 46.7°F 43.6°F
May 16 46.6°F 47.6°F 43.6°F
May 17 50.3°F 47.4°F 44.5°F
May 18 51.5°F 44.6°F 44.8°F
May 19 51.3°F 43.8°F 44.6°F
May 20 51.5°F 45.4°F 44.8°F
May 21 51.9°F 46.1°F 45.2°F
May 22 52.3°F 47.1°F 45.6°F
May 23 52.9°F 47.7°F 46.1°F
May 24 53.9°F 48.4°F 47.2°F
May 25 54.5°F 49.2°F 47.8°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 30, 2021, reaching a 76.7°F. While the coldest temperature occurred on February 20, 2015, dipping to 32.0°F. The average readings by season are 38.2°F in Winter, 39.8°F in Spring, 63.9°F in Summer, and 57.3°F in Autumn.