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Mary Lake

Mary Lake Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Mary Lake, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Lake Water Temperature Information

1.8°C

TODAY

1.8°C

YESTERDAY

1.5°C

A WEEK AGO

As of today, the minimum water temperature in the Mary Lake ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for Mary Lake Over the Last 30 Days

Today the water temperature in Mary Lake is lower than the same day in previous years. The water temperature range here in April is from 0°C to 12°C. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.

The forecasted water temperature values for Mary Lake are presented in the table below.

The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.

Daily Water Temperature Chart

DateCurrentAverageForecast
Apr 191.5°C6.0°C
Apr 201.5°C6.0°C
Apr 211.5°C6.0°C
Apr 221.5°C6.0°C
Apr 231.6°C6.0°C
Apr 241.7°C6.0°C
Apr 251.8°C6.0°C
Apr 261.8°C6.0°C
Apr 276.0°C2.1°C
Apr 286.0°C2.3°C
Apr 296.0°C2.5°C
Apr 306.0°C2.7°C
May 113.3°C3.4°C
May 213.3°C4.0°C
May 313.3°C4.6°C
May 413.3°C5.1°C
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Mary Lake by Month

January

MinimumAverageMaximum
0°C1.7°C4°C

February

MinimumAverageMaximum
0°C2.2°C5°C

March

MinimumAverageMaximum
0°C3°C6°C

April

MinimumAverageMaximum
0°C6°C12°C

May

MinimumAverageMaximum
11°C13.3°C16°C

June

MinimumAverageMaximum
15°C17.2°C20°C

July

MinimumAverageMaximum
24°C26.1°C29°C

August

MinimumAverageMaximum
20°C22.8°C25°C

September

MinimumAverageMaximum
18°C20°C22°C

October

MinimumAverageMaximum
13°C15°C17°C

November

MinimumAverageMaximum
8°C10.6°C13°C

December

MinimumAverageMaximum
3°C5°C7°C

Monthly Water Temperature Histogram for Mary Lake

Mary Lake Weather

APRIL 27

1°C / 15°C
overcast

rain: 75% | wind: 23 km/h

APRIL 28

3°C / 19°C
overcast

rain: 2% | wind: 15 km/h

APRIL 29

9°C / 25°C
slight rain showers

rain: 71% | wind: 25 km/h

APRIL 30

1°C / 18°C
moderate rain showers

rain: 71% | wind: 25 km/h

MAY 1

-1°C / 16°C
overcast

rain: 18% | wind: 10 km/h

Water Temperature in Mary Lake: General Trends and Swimming Opportunities

Mary Lake is located in Canada in the province of Ontario, at an elevation of 918 feet (280 meters) above sea level.

Mary Lake is a medium lake. Its surface area is 4.1 sq mi (10.7 sq km). Typically versatile lakes with developed ecosystems; popular for water sports and tourism.

The water temperature in Mary Lake varies throughout the year, ranging from 32°F (0°C) in January to 84°F (29°C) in July. The average annual water temperature of the lake is 54°F (12°C). The months when the average water temperature in Mary Lake exceeds 68 degrees Fahrenheit (20°C) are July, August and September.

Geographical Location of Mary Lake

Frequently Asked Questions About Mary Lake and its Water Temperatures

What is the current water temperature in Mary Lake?

The water temperature today in Mary Lake is 35°F (1.8°C).

What is the water temperature in Mary Lake during the summer months?

The average water temperature in Mary Lake during the summer months is typically between 63°F to 79°F (17°C to 26°C), and it can reach up to 84°F (29°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Mary Lake in May?

The average water temperature in Mary Lake in May ranges from 52°F to 61°F (11°C to 16°C).

What is the water temperature in Mary Lake in September?

The average water temperature in Mary Lake in September is typically between 64°F to 72°F (18°C to 22°C).

Where is Mary Lake located?

Mary Lake is located in Canada in the province of Ontario, at an elevation of 918 feet (280 meters) above sea level. The surface area of the lake is 4.112 sq mi (10.65 sq km).

Is it possible to swim in Mary Lake and what are the possibilities for this?

Yes, swimming in Mary Lake, Ontario is possible and typically depends on weather conditions and personal safety measures. The lake is accessible for swimmers, though no lifeguards are present on its shores.

What are the coordinates of Mary Lake?

Mary Lake is located at coordinates 45.2370°N 79.2630°W.