Wirth Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Wirth Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Wirth Lake today is 21.1°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 23 | 19.7°C | 23.3°C | |
| JUN 24 | 19.6°C | 23.3°C | |
| JUN 25 | 19.7°C | 23.3°C | |
| JUN 26 | 19.7°C | 23.3°C | |
| JUN 27 | 19.9°C | 23.3°C | |
| JUN 28 | 20.1°C | 23.3°C | |
| JUN 29 | 20.3°C | 23.3°C | |
| JUN 30 | 20.4°C | 23.3°C | |
| JUL 1 | 24.4°C | 21.3°C | |
| JUL 2 | 24.4°C | 21.4°C | |
| JUL 3 | 24.4°C | 21.6°C | |
| JUL 4 | 24.4°C | 21.8°C | |
| JUL 5 | 24.4°C | 21.9°C | |
| JUL 6 | 24.4°C | 22.1°C | |
| JUL 7 | 24.4°C | 22.3°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 | 3°C | 6°C |
| March | 0°C | 3°C | 6°C |
| April | 4°C | 9°C | 15°C |
| May | 11°C | 17°C | 23°C |
| June | 19°C | 23°C | 27°C |
| July | 22°C | 24°C | 27°C |
| August | 22°C | 25°C | 28°C |
| September | 18°C | 21°C | 23°C |
| October | 6°C | 14°C | 21°C |
| November | 3°C | 8°C | 12°C |
| December | 1°C | 4°C | 7°C |
Wirth Lake: Water Temperature by Location
Wirth Lake: Weather Forecast
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Location & Local Information
Wirth Lake is a relatively small, shallow urban lake in Minneapolis that experiences pronounced seasonal swings in surface temperature. In winter the lake typically freezes and water beneath the ice hovers near 32°F (0°C). During spring thaw surface readings commonly range from about 35–60°F (2–15°C) as the lake warms slowly; by late spring to early summer temperatures often reach roughly 50–70°F (10–21°C). Peak summer surface temperatures for a shallow lake like Wirth Lake are frequently in the mid-60s to upper-70s °F range (about 18–26°C), and on warm spells can briefly approach the low 80s °F (27–28°C). In autumn the water cools back through the 50s °F (10–15°C) before refreezing. Because the lake is shallow, it responds quickly to air temperature and solar radiation and tends not to develop strong thermal stratification.
Seasonal swimming is generally possible at the park beach areas when the city or park authority has the site officially open and lifeguards are present; closures occur when ice is present or when water-quality testing shows bacterial contamination or harmful algal blooms. Swimmers should heed posted advisories, since shallow urban lakes can experience rapid changes in temperature, submerged vegetation, and occasional algae that affect safety and comfort. Ice swimming or unsupervised winter entry is not recommended because of hypothermia and thin-ice hazards.