What is the current water temperature in Mississauga?

Q: What is the current water temperature in Mississauga?

As of now, in Mississauga, the water temperature is 6.56°C. 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.

Canada > Mississauga

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.

43.8

°F

May 21, 19:22

Trend:

stable

Yesterday:

44.1°F

Tomorrow:

44.5°F

Sunrise:

05:48

Sunset:

20:43

Day Length:

14 h. 55 min.

Mississauga in May

Minimum:

37.3°F

Average:

38.7°F

Maximum:

39.8°F

Water temperature in Mississauga today

As of now, in Mississauga, the water temperature is 43.8°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 3.3°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 rise 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 minimum temperature for this date. The maximum temperature recorded for this date was 54.9°F on 2024, while the historical minimum was 42.4°F on 2019.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 46.2°F, with minimum temperature starting at 44.5°F, while the maximum might reach 47.6°F.

Daily water temperature in Mississauga

Date	Current Year actual* / forecast**	last year	10 years average
May 7	40.6°F	42.4°F	42.4°F
May 8	41.8°F	42.4°F	43.0°F
May 9	40.0°F	42.5°F	42.9°F
May 10	40.2°F	42.6°F	43.1°F
May 11	42.2°F	42.8°F	43.2°F
May 12	41.5°F	42.8°F	43.3°F
May 13	42.6°F	44.4°F	43.6°F
May 14	41.7°F	44.4°F	44.2°F
May 15	41.9°F	44.5°F	44.7°F
May 16	41.4°F	46.0°F	44.9°F
May 17	43.1°F	45.7°F	45.4°F
May 18	43.1°F	42.5°F	45.2°F
May 19	42.3°F	45.5°F	45.4°F
May 20	44.1°F	46.1°F	46.2°F
May 21	43.8°F	46.7°F	47.1°F
May 22	44.5°F	46.7°F	47.8°F
May 23	45.2°F	46.9°F	48.5°F
May 24	46.3°F	47.1°F	49.6°F
May 25	46.7°F	45.6°F	50.0°F
May 26	46.5°F	45.5°F	49.8°F
May 27	46.7°F	45.8°F	50.1°F
May 28	47.6°F	48.1°F	50.9°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, 65.1°F in Summer, and 58.0°F in Autumn.