Toronto Water Temperature

(Today) 2025

12.9°C / 55.2°F

The water will feel cool (fresh). Probably too cold for all but seasoned swimmers. We'd recommend a 4mm or 5mm wetsuit if you want to stay in the water.

*Live data from NW Lake Ontario Ajax: 13.4°C / 56.1°F

Current weather

14°C / 57°F
(clear sky)
Partly cloudy
Wind
20 mph
Humidity
71%

The measurements for the water temperature in Toronto, Ontario are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Toronto water temperature derived from many years of historical sea surface temperature data.

Toronto average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Toronto
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.3 0.3 0.2 1.2 2.8 8.2 17.5 20.4 17.6 10 6.5 2.5
Max °C 3.5 2.5 2.7 5.2 9.1 20.7 25.2 24.3 22.7 18.7 11.4 7.3
Min °F 35.2 33.4 33.3 35.8 39.5 51.7 66.5 70.2 65.7 53.4 45.6 38.4
Max °F 37.4 35.6 35.8 39.8 45.8 64.2 74.2 74.1 70.8 62.1 50.5 43.2

The warmest water temperature is in August with an average around 72.1°F / 22.3°C. The coldest month is February with an average water temperature of 34.5°F / 1.4°C.

7 day tide forecast for Toronto

SunMonTueWedThuFriSat
  • Low 2:09am
    (0.29m)
  • High 7:04am
    (1.82m)
  • Low 3:11pm
    (0.12m)
  • High 8:20pm
    (1.45m)
  • Low 2:59am
    (0.29m)
  • High 7:53am
    (1.78m)
  • Low 3:53pm
    (0.12m)
  • High 9:08pm
    (1.51m)
  • Low 3:55am
    (0.3m)
  • High 8:48am
    (1.72m)
  • Low 4:39pm
    (0.12m)
  • High 10:01pm
    (1.56m)
  • Low 4:58am
    (0.31m)
  • High 9:51am
    (1.65m)
  • Low 5:28pm
    (0.13m)
  • High 10:57pm
    (1.62m)
  • Low 6:06am
    (0.31m)
  • High 11:03am
    (1.57m)
  • Low 6:21pm
    (0.13m)
  • High 11:55pm
    (1.67m)
  • Low 7:14am
    (0.27m)
  • High 12:17pm
    (1.51m)
  • Low 7:17pm
    (0.14m)
  • High 12:53am
    (1.73m)
  • Low 8:19am
    (0.21m)
  • High 1:23pm
    (1.48m)
  • Low 8:15pm
    (0.14m)
7 day tide times for Toronto

*These tide times are estimates based on the nearest accurate location (Troy, Hudson River, New York) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.