All data are in degrees Fahrenheit

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Water temperature in Mississauga

Detailed information about the current water temperature in Mississauga. 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 Mississauga now

68.1

°F

September 8, 05:05

Trend:

decreasing

Yesterday:

68.1°F

Tomorrow:

67.6°F

Sunrise:

06:50

Sunset:

19:42

Day Length:

12 h. 52 min.

Mississauga in September

Minimum:

36.6°F

Average:

38.4°F

Maximum:

39.6°F

Water temperature in Mississauga today

As of now, in Mississauga, the water temperature is 68.1°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 1.2°F lower than the average recorded on this particular day in recent years. The water temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent water temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling 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 72.5°F on 2016, while the historical minimum was 65.1°F on 2017.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 66.9°F, the minimum temperature may reach 66.3°F, and the maximum might stay at 67.6°F.

Daily water temperature in Mississauga

Date Current Year

actual* / forecast**

last year 10 years average
Aug 25 73.7°F 66.0°F 70.3°F
Aug 26 73.4°F 66.8°F 70.2°F
Aug 27 72.4°F 68.3°F 69.8°F
Aug 28 71.3°F 70.7°F 69.5°F
Aug 29 71.3°F 70.8°F 69.6°F
Aug 30 70.2°F 70.7°F 69.8°F
Aug 31 69.6°F 69.2°F 69.7°F
Sep 1 69.5°F 71.3°F 69.7°F
Sep 2 69.1°F 71.3°F 69.5°F
Sep 3 69.6°F 70.6°F 69.5°F
Sep 4 69.9°F 69.5°F 69.2°F
Sep 5 69.5°F 68.8°F 69.0°F
Sep 6 68.0°F 70.1°F 69.1°F
Sep 7 68.1°F 69.9°F 69.3°F
Sep 8 68.1°F 68.5°F 69.2°F
Sep 9 67.6°F 68.3°F 68.8°F
Sep 10 67.2°F 67.1°F 68.4°F
Sep 11 67.1°F 66.1°F 68.3°F
Sep 12 67.0°F 66.7°F 68.1°F
Sep 13 66.5°F 67.2°F 67.7°F
Sep 14 66.4°F 66.6°F 67.6°F
Sep 15 66.3°F 66.1°F 67.4°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 Mississauga by month

In an average year, Mississauga offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Mississauga was recorded on August 13, 2025, reaching a 76.9°F. While the coldest temperature occurred on February 20, 2015, dipping to 32.0°F. The average readings by season are 38.3°F in Winter, 40.4°F in Spring, 64.8°F in Summer, and 57.8°F in Autumn.