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 25.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 |
|---|---|---|---|
| AUG 24 | 24.5°C | 24.4°C | |
| AUG 25 | 24.4°C | 24.4°C | |
| AUG 26 | 24.3°C | 24.4°C | |
| AUG 27 | 25.1°C | 24.4°C | |
| AUG 28 | 25.7°C | 24.4°C | |
| AUG 29 | 25.7°C | 24.4°C | |
| AUG 30 | 25.7°C | 24.4°C | |
| AUG 31 | 25.7°C | 24.4°C | |
| SEP 1 | 20.6°C | 25.0°C | |
| SEP 2 | 20.6°C | 24.7°C | |
| SEP 3 | 20.6°C | 24.5°C | |
| SEP 4 | 20.6°C | 24.3°C | |
| SEP 5 | 20.6°C | 24.1°C | |
| SEP 6 | 20.6°C | 23.8°C | |
| SEP 7 | 20.6°C | 23.6°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 | 25°C | 29°C |
| August | 20°C | 24°C | 29°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
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September 4
September 5
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.