Big Cormorant Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Big Cormorant Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Big Cormorant Lake today is 17.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 |
|---|---|---|---|
| SEP 14 | 19.7°C | 19.9°C | |
| SEP 15 | 18.6°C | 19.9°C | |
| SEP 16 | 18.6°C | 19.9°C | |
| SEP 17 | 18.8°C | 19.9°C | |
| SEP 18 | 17.7°C | 19.9°C | |
| SEP 19 | 17.9°C | 19.9°C | |
| SEP 20 | 17.1°C | 19.9°C | |
| SEP 21 | 17.8°C | 19.9°C | |
| SEP 22 | 19.9°C | 17.9°C | |
| SEP 23 | 19.9°C | 18.0°C | |
| SEP 24 | 19.9°C | 18.1°C | |
| SEP 25 | 19.9°C | 18.2°C | |
| SEP 26 | 19.9°C | 18.3°C | |
| SEP 27 | 19.9°C | 18.4°C | |
| SEP 28 | 19.9°C | 18.5°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 | 2°C | 7°C | 12°C |
| February | 2°C | 9°C | 15°C |
| March | 1°C | 9°C | 17°C |
| April | 2°C | 11°C | 20°C |
| May | 5°C | 14°C | 21°C |
| June | 14°C | 18°C | 23°C |
| July | 17°C | 22°C | 27°C |
| August | 21°C | 25°C | 28°C |
| September | 16°C | 20°C | 24°C |
| October | 5°C | 12°C | 18°C |
| November | 4°C | 8°C | 11°C |
| December | 2°C | 7°C | 11°C |
Big Cormorant Lake: Water Temperature by Location
Big Cormorant Lake: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Big Cormorant Lake in Minnesota experiences pronounced seasonal shifts in water temperature. In spring the surface typically warms from around 40–60°F (4–16°C) as ice melts and runoff continues. Summer brings the warmest conditions, with surface temperatures most often in the mid-70s to low 80s °F (about 24–28°C), though shallow bays can warm a few degrees higher on hot, calm days. By early fall the lake cools into the 50s–60s °F range (10–16°C) as air temperatures drop. During winter the surface freezes and water beneath the ice stays close to 32–40°F (0–4°C), making the lake essentially unusable for normal swimming until ice-out in spring.
Swimming is generally allowed on Big Cormorant Lake and is a common recreational activity in the warmer months, especially from late June through August when surface temperatures are most comfortable. Whether swimming is advisable depends on conditions: water quality advisories for algal blooms, excessive vegetation, water clarity, wind and weather, and the absence of lifeguards at most public accesses can affect safety. Ice cover in winter precludes typical swimming; any winter water activities should only be undertaken with proper training, gear and local safety guidance.