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

69.9

°F

August 13, 22:54

Trend:

decreasing

Yesterday:

70.4°F

Tomorrow:

69.3°F

Sunrise:

06:21

Sunset:

20:25

Day Length:

14 h. 4 min.

Mississauga in August

Minimum:

37.3°F

Average:

38.7°F

Maximum:

40.0°F

Water temperature in Mississauga today

As of now, in Mississauga, the water temperature is 69.9°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 1.7°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 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 76.9°F on 2025, while the historical minimum was 66.0°F on 2022.

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 minimum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 69.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Mississauga

Date Current Year

actual* / forecast**

last year 10 years average
Jul 30 60.6°F 72.2°F 68.7°F
Jul 31 61.7°F 72.3°F 69.0°F
Aug 1 61.6°F 72.5°F 68.8°F
Aug 2 62.6°F 72.1°F 69.3°F
Aug 3 63.0°F 71.5°F 69.4°F
Aug 4 66.6°F 71.7°F 70.1°F
Aug 5 66.2°F 71.5°F 70.1°F
Aug 6 67.4°F 72.7°F 70.5°F
Aug 7 69.5°F 71.9°F 70.7°F
Aug 8 72.0°F 72.7°F 71.4°F
Aug 9 71.4°F 72.5°F 71.2°F
Aug 10 70.4°F 72.5°F 71.2°F
Aug 11 70.7°F 72.2°F 70.8°F
Aug 12 70.4°F 75.6°F 71.2°F
Aug 13 69.9°F 76.9°F 71.5°F
Aug 14 69.3°F 74.9°F 70.9°F
Aug 15 69.9°F 75.7°F 71.6°F
Aug 16 70.0°F 76.3°F 71.7°F
Aug 17 70.2°F 76.4°F 71.8°F
Aug 18 70.5°F 76.8°F 72.2°F
Aug 19 70.1°F 76.2°F 71.7°F
Aug 20 69.6°F 75.6°F 71.3°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 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 March 26, 2026, dipping to 33.8°F. The average readings by season are 38.3°F in Winter, 40.6°F in Spring, 64.9°F in Summer, and 58.0°F in Autumn.