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

64.4

°F

September 24, 23:51

Trend:

decreasing

Yesterday:

64.9°F

Tomorrow:

64.2°F

Sunrise:

07:08

Sunset:

19:13

Day Length:

12 h. 5 min.

Mississauga in October

Minimum:

36.9°F

Average:

38.4°F

Maximum:

39.4°F

Water temperature in Mississauga today

As of now, in Mississauga, the water temperature is 64.4°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 2.4°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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 70.5°F on 2017, while the historical minimum was 63.0°F on 2020.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 63.7°F, the minimum temperature may reach 62.6°F, and the maximum might stay at 64.2°F.

Daily water temperature in Mississauga

Date Current Year

actual* / forecast**

last year 10 years average
Sep 10 69.1°F 61.3°F 67.6°F
Sep 11 69.0°F 59.4°F 67.3°F
Sep 12 68.4°F 60.0°F 67.2°F
Sep 13 67.4°F 61.3°F 67.0°F
Sep 14 67.6°F 61.9°F 67.0°F
Sep 15 66.1°F 62.7°F 66.9°F
Sep 16 66.5°F 64.3°F 67.1°F
Sep 17 66.6°F 64.8°F 66.8°F
Sep 18 66.8°F 65.4°F 67.1°F
Sep 19 67.7°F 66.3°F 67.4°F
Sep 20 67.5°F 66.7°F 67.4°F
Sep 21 66.7°F 66.8°F 67.2°F
Sep 22 65.4°F 65.9°F 67.1°F
Sep 23 64.9°F 65.9°F 67.0°F
Sep 24 64.4°F 64.0°F 66.8°F
Sep 25 64.2°F 64.0°F 66.6°F
Sep 26 64.0°F 63.9°F 66.4°F
Sep 27 64.1°F 66.8°F 66.5°F
Sep 28 63.9°F 66.7°F 66.3°F
Sep 29 63.4°F 67.1°F 65.8°F
Sep 30 63.4°F 67.2°F 65.8°F
Oct 1 62.6°F 67.5°F 65.0°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, 64.8°F in Summer, and 57.9°F in Autumn.