Coon Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Coon Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Coon Lake today is 21.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 |
|---|---|---|---|
| JUN 3 | 19.0°C | 21.5°C | |
| JUN 4 | 19.1°C | 21.5°C | |
| JUN 5 | 19.1°C | 21.5°C | |
| JUN 6 | 19.4°C | 21.5°C | |
| JUN 7 | 20.0°C | 21.5°C | |
| JUN 8 | 21.0°C | 21.5°C | |
| JUN 10 | 21.3°C | 21.5°C | |
| JUN 11 | 21.5°C | 21.3°C | |
| JUN 12 | 21.5°C | 21.3°C | |
| JUN 13 | 21.5°C | 21.3°C | |
| JUN 14 | 21.5°C | 21.3°C | |
| JUN 15 | 21.5°C | 21.4°C | |
| JUN 16 | 21.5°C | 21.4°C | |
| JUN 17 | 21.5°C | 21.4°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 | 4°C |
| March | 0°C | 2°C | 5°C |
| April | 3°C | 9°C | 15°C |
| May | 10°C | 16°C | 21°C |
| June | 16°C | 22°C | 27°C |
| July | 21°C | 24°C | 27°C |
| August | 20°C | 24°C | 28°C |
| September | 18°C | 21°C | 23°C |
| October | 6°C | 13°C | 19°C |
| November | 3°C | 7°C | 11°C |
| December | 1°C | 4°C | 8°C |
Coon Lake: Water Temperature by Location
Coon Lake: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Coon Lake in Minnesota experiences the broad seasonal swings typical of shallow temperate lakes. In spring (April–May) surface temperatures commonly rise from roughly 45–60°F (7–16°C) as ice melts and the water stratifies. By summer (June–August) the upper layer often warms to comfortable swimming temperatures, frequently in the range of about 68–78°F (20–26°C) and on warm afternoons reaching around 80°F (27°C). In autumn (September–October) surface readings usually fall back to roughly 50–65°F (10–18°C) as cooling and turnover occur. Through winter the lake is normally at or just above freezing under ice cover, near 32–36°F (0–2°C) in the upper waters, while deeper water remains near 39°F (4°C).
Swimming at Coon Lake is a common recreational use during the warmer months because surface temperatures in summer are often within a comfortable range for most people. Whether and where you can swim depends on shore access, designated beaches or public access points, and current conditions: water-quality advisories (for bacteria or algal blooms), submerged vegetation, boat traffic and the absence of lifeguards can all affect safety and suitability. For safe, enjoyable swimming aim for the mid-summer period when surface temperatures exceed about 70°F (21°C), and always check local advisories and respect posted rules before entering the water.