Toronto — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Toronto, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Toronto today is 25.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 4 | 23.2°C | 23.0°C | |
| AUG 5 | 23.4°C | 23.0°C | |
| AUG 6 | 23.7°C | 23.0°C | |
| AUG 7 | 24.1°C | 23.0°C | |
| AUG 8 | 24.8°C | 23.0°C | |
| AUG 9 | 24.9°C | 23.0°C | |
| AUG 10 | 24.8°C | 23.0°C | |
| AUG 11 | 25.5°C | 23.0°C | |
| AUG 12 | 23.0°C | 25.4°C | |
| AUG 13 | 23.0°C | 25.3°C | |
| AUG 14 | 23.0°C | 25.1°C | |
| AUG 15 | 23.0°C | 25.0°C | |
| AUG 16 | 23.0°C | 24.9°C | |
| AUG 17 | 23.0°C | 24.8°C | |
| AUG 18 | 23.0°C | 24.6°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 4°C | 7°C |
| February | 0°C | 2°C | 4°C |
| March | -1°C | 3°C | 6°C |
| April | 1°C | 7°C | 13°C |
| May | 8°C | 13°C | 18°C |
| June | 13°C | 18°C | 22°C |
| July | 16°C | 21°C | 26°C |
| August | 19°C | 23°C | 27°C |
| September | 16°C | 21°C | 26°C |
| October | 6°C | 14°C | 21°C |
| November | 4°C | 10°C | 16°C |
| December | 1°C | 5°C | 8°C |
Toronto: Weather Forecast
August 12
August 13
August 14
August 15
Location & Local Information
Toronto, located on the northwestern shore of Lake Ontario, offers a more temperate swimming experience compared to other parts of the Great Lakes. During the summer months, the water temperature in Lake Ontario can range from 70°F to 75°F (21°C to 24°C), making it relatively comfortable for swimming. On hotter days, the water might feel refreshingly cool, offering a great way to escape the summer heat. Many Toronto residents and visitors flock to the city’s beaches, such as Ontario Place, Hanlan's Point, and Woodbine Beach, where they can enjoy swimming, sunbathing, and beach activities.
While swimming in Lake Ontario is quite popular in the summer, it’s important to note that water quality can vary due to factors such as rainfall and water currents. Toronto's public beaches are regularly tested for safety, and advisories are issued when water quality is not ideal for swimming. The city's beaches are well-maintained, with lifeguards present at some locations during peak swimming hours, ensuring a safer experience for swimmers.
As the seasons change, water temperatures in Lake Ontario drop, typically reaching around 40°F to 45°F (4°C to 7°C) by late fall and winter. During these colder months, swimming becomes less common, and the lake can even freeze in certain areas. However, in the warmer months, Toronto's lakeside parks and beaches remain a popular destination for both locals and tourists seeking a refreshing swim and the opportunity to enjoy the natural beauty of the area.