Lac du Poisson Blanc — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lac du Poisson Blanc, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lac du Poisson Blanc today is 19.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 25 | 22.1°C | 21.1°C | |
| AUG 26 | 21.9°C | 21.1°C | |
| AUG 27 | 20.9°C | 21.1°C | |
| AUG 28 | 21.0°C | 21.1°C | |
| AUG 29 | 20.5°C | 21.1°C | |
| AUG 30 | 20.2°C | 21.1°C | |
| AUG 31 | 19.8°C | 21.1°C | |
| SEP 2 | 20.5°C | 19.8°C | |
| SEP 3 | 20.5°C | 19.9°C | |
| SEP 4 | 20.5°C | 19.9°C | |
| SEP 5 | 20.5°C | 19.9°C | |
| SEP 6 | 20.5°C | 20.0°C | |
| SEP 7 | 20.5°C | 20.0°C | |
| SEP 8 | 20.5°C | 20.0°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 | 3°C | 5°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 3°C | 6°C |
| April | 0°C | 4°C | 9°C |
| May | 3°C | 10°C | 17°C |
| June | 10°C | 16°C | 22°C |
| July | 18°C | 23°C | 27°C |
| August | 19°C | 21°C | 24°C |
| September | 16°C | 21°C | 25°C |
| October | 8°C | 13°C | 18°C |
| November | 2°C | 9°C | 15°C |
| December | 0°C | 3°C | 6°C |
Lac du Poisson Blanc: Water Temperature by Location
Lac du Poisson Blanc: Weather Forecast
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Location & Local Information
Lac du Poisson Blanc, a vast reservoir in the Outaouais region of Quebec, experiences water temperatures that are conducive to swimming during the warmest period of the year. In the peak summer months, surface temperatures typically reach a comfortable range, averaging around 21∘C to 25∘C (70∘F to 77∘F), with some shallow areas or recent readings reaching as high as 24.5∘C (76∘F) in late July. Conversely, the winter months bring freezing conditions, with temperatures dropping to the range of 0∘C to 5∘C (32∘F to 41∘F), and the lake is completely frozen over.
Swimming is widely permitted and very popular at Lac du Poisson Blanc, with the Parc régional du Poisson Blanc promoting the lake for various water sports and maintaining a public beach, confirming it is an expected recreational activity. The lake's clear waters and numerous remote island campsites make it a favourite for wilderness swimmers. However, the park's beaches are generally unsupervised, meaning there are no official lifeguards on duty. All swimming is therefore strictly at one's own risk, and caution is advised regarding boat traffic, especially in the main channel, and the risk of cold shock outside of the warmest mid-summer period.