Fish Trap Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Fish Trap Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Fish Trap Lake today is 17.4°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 | 20.2°C | 20.3°C | |
| SEP 15 | 19.9°C | 20.3°C | |
| SEP 16 | 18.9°C | 20.3°C | |
| SEP 17 | 19.0°C | 20.3°C | |
| SEP 18 | 17.4°C | 20.3°C | |
| SEP 19 | 17.8°C | 20.3°C | |
| SEP 20 | 17.6°C | 20.3°C | |
| SEP 21 | 17.4°C | 20.3°C | |
| SEP 22 | 20.3°C | 17.5°C | |
| SEP 23 | 20.3°C | 17.7°C | |
| SEP 24 | 20.3°C | 17.8°C | |
| SEP 25 | 20.3°C | 18.0°C | |
| SEP 26 | 20.3°C | 18.1°C | |
| SEP 27 | 20.3°C | 18.3°C | |
| SEP 28 | 20.3°C | 18.4°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 | 1°C | 7°C | 12°C |
| February | 2°C | 9°C | 15°C |
| March | 1°C | 9°C | 17°C |
| April | 1°C | 11°C | 20°C |
| May | 5°C | 14°C | 22°C |
| June | 12°C | 17°C | 23°C |
| July | 17°C | 22°C | 27°C |
| August | 20°C | 24°C | 28°C |
| September | 16°C | 20°C | 25°C |
| October | 5°C | 12°C | 18°C |
| November | 3°C | 7°C | 10°C |
| December | 2°C | 7°C | 11°C |
Fish Trap Lake: Water Temperature by Location
Fish Trap Lake: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Fish Trap Lake in Minnesota experiences pronounced seasonal swings in water temperature typical of northern lakes. During winter the surface usually approaches freezing, about 32°F (0°C), and the lake is commonly ice‑covered for weeks to months. In spring, as ice melts and runoff cools the water, surface temperatures commonly range from roughly 35–60°F (2–15°C). Summer brings the warmest surface readings, often around 60–75°F (15–24°C) on sunny, calm days, though sheltered bays can warm a few degrees higher while deeper water remains substantially cooler. In the fall the lake steadily cools back into the 45–60°F (7–15°C) band before refreezing, with wind and weather causing short‑term variation.
Swimming at Fish Trap Lake is generally permitted during the ice‑free season because surface temperatures frequently reach levels comfortable for recreational bathing, especially in mid to late summer. Many swimmers prefer water closer to 70–78°F (21–26°C), but others find 60–70°F (15–21°C) acceptable; water below about 60°F increases cold‑shock and hypothermia risk, so caution is warranted. Local conditions such as algae, bacterial advisories, access points, and posted rules determine specific use; winter ice swimming is practiced by some but requires expert safety measures and is not generally recommended without proper equipment and support.