Manitowish Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Manitowish Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Manitowish Lake today is 20.9°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 | 16.4°C | 18.0°C | |
| JUN 4 | 16.4°C | 18.0°C | |
| JUN 5 | 16.5°C | 18.0°C | |
| JUN 6 | 16.5°C | 18.0°C | |
| JUN 7 | 16.9°C | 18.0°C | |
| JUN 8 | 16.9°C | 18.0°C | |
| JUN 11 | 18.0°C | 20.8°C | |
| JUN 12 | 18.0°C | 20.6°C | |
| JUN 13 | 18.0°C | 20.5°C | |
| JUN 14 | 18.0°C | 20.3°C | |
| JUN 15 | 18.0°C | 20.2°C | |
| JUN 16 | 18.0°C | 20.0°C | |
| JUN 17 | 18.0°C | 19.9°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 | 2°C | 4°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 3°C | 6°C |
| April | 1°C | 5°C | 8°C |
| May | 6°C | 12°C | 19°C |
| June | 15°C | 18°C | 21°C |
| July | 18°C | 23°C | 27°C |
| August | 18°C | 24°C | 30°C |
| September | 14°C | 16°C | 19°C |
| October | 9°C | 13°C | 17°C |
| November | 4°C | 9°C | 13°C |
| December | 0°C | 3°C | 6°C |
Manitowish Lake: Water Temperature by Location
Manitowish Lake: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Manitowish Lake in northern Wisconsin experiences pronounced seasonal changes in surface water temperature. In spring the lake is cold, typically ranging from about 40–55°F (4–13°C) as snowmelt and cool air keep the water brisk. By summer surface temperatures commonly rise to roughly 70–75°F (21–24°C), and on warm, calm stretches can reach the upper 70s to low 80s (26–28°C) in shallow bays. Autumn brings a steady cooling back toward roughly 50–60°F (10–16°C), and in winter the lake sits at or just above freezing (around 32–34°F / 0–1°C) beneath ice cover.
Swimming is permitted and is a common recreational activity in warmer months because summer surface temperatures reach comfortable ranges for bathing and the shoreline is accessible to residents and visitors. Water quality is generally managed locally, but swimmers should heed posted advisories and be mindful of typical lake hazards such as sudden drop-offs, aquatic vegetation, and changing weather. During spring and fall the cold water increases the risk of cold shock, and winter swimming is unsafe without specialized equipment and training due to ice and near-freezing conditions.