Lake Josephine — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Josephine, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Josephine today is 21.6°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 6 | 19.5°C | 21.5°C | |
| JUN 7 | 20.3°C | 21.5°C | |
| JUN 8 | 21.7°C | 21.5°C | |
| JUN 10 | 22.1°C | 21.5°C | |
| JUN 11 | 22.0°C | 21.5°C | |
| JUN 12 | 21.7°C | 21.5°C | |
| JUN 13 | 21.6°C | 21.5°C | |
| JUN 14 | 21.5°C | 21.6°C | |
| JUN 15 | 21.5°C | 21.6°C | |
| JUN 16 | 21.5°C | 21.6°C | |
| JUN 17 | 21.5°C | 21.6°C | |
| JUN 18 | 21.5°C | 21.6°C | |
| JUN 19 | 21.5°C | 21.6°C | |
| JUN 20 | 21.5°C | 21.6°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 | 1°C | 4°C |
| February | 0°C | 2°C | 4°C |
| March | 0°C | 2°C | 5°C |
| April | 3°C | 8°C | 14°C |
| May | 9°C | 16°C | 22°C |
| June | 16°C | 22°C | 27°C |
| July | 22°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 | 8°C | 12°C |
| December | 0°C | 3°C | 6°C |
Lake Josephine: Water Temperature by Location
Lake Josephine: Weather Forecast
June 14
June 15
June 16
June 17
June 18
June 19
Location & Local Information
Lake Josephine, like many small lakes in Minnesota, experiences a strong seasonal cycle in water temperature. Surface water in summer typically warms into the low to mid 70s °F (about 21–26 °C), with the warmest weeks occasionally reaching the upper 70s °F (around 25–26 °C). In spring the lake moves up from chilly conditions of roughly 40–60 °F (4–16 °C) as ice melts and the water mixes, while fall sees a steady cooling through the 50s–60s °F (10–16 °C) before freeze-up. During winter, when the lake is ice-covered, under-ice temperatures usually sit close to freezing, roughly 32–39 °F (0–4 °C), and deeper waters remain colder than the surface. Thermal stratification in summer means deeper areas can be noticeably cooler than the surface.
Swimming is generally possible during the ice-free months because surface temperatures commonly reach comfortable ranges for recreational bathing. Local conditions—public access, shoreline ownership and municipal rules—affect where swimming is permitted, and authorities may close beaches temporarily for reasons such as high bacteria counts or harmful algal blooms. Ice and near-freezing water in winter make regular swimming unsafe except for specialized cold-water or ice-swim activities with proper precautions. Always check local advisories and water-quality reports before entering the water.