Lake Hanska — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Hanska, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Hanska today is 18.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 | 21.2°C | 20.9°C | |
| SEP 15 | 20.2°C | 20.9°C | |
| SEP 16 | 20.0°C | 20.9°C | |
| SEP 17 | 18.8°C | 20.9°C | |
| SEP 18 | 18.4°C | 20.9°C | |
| SEP 19 | 18.9°C | 20.9°C | |
| SEP 20 | 18.8°C | 20.9°C | |
| SEP 21 | 18.7°C | 20.9°C | |
| SEP 22 | 20.9°C | 18.8°C | |
| SEP 23 | 20.9°C | 18.9°C | |
| SEP 24 | 20.9°C | 19.0°C | |
| SEP 25 | 20.9°C | 19.1°C | |
| SEP 26 | 20.9°C | 19.3°C | |
| SEP 27 | 20.9°C | 19.4°C | |
| SEP 28 | 20.9°C | 19.5°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 | 6°C | 12°C |
| February | 0°C | 8°C | 15°C |
| March | 0°C | 9°C | 17°C |
| April | 3°C | 12°C | 20°C |
| May | 10°C | 16°C | 23°C |
| June | 16°C | 20°C | 24°C |
| July | 17°C | 23°C | 29°C |
| August | 19°C | 24°C | 29°C |
| September | 17°C | 21°C | 25°C |
| October | 5°C | 13°C | 21°C |
| November | 4°C | 8°C | 12°C |
| December | 1°C | 6°C | 11°C |
Lake Hanska: Water Temperature by Location
Lake Hanska: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Lake Hanska, a small prairie lake in southern Minnesota, follows the seasonal temperature patterns common to shallow Midwestern lakes. In winter the surface typically freezes, with temperatures at the ice edge around 32°F (0°C) while water just below ice can stay near the maximum density temperature of about 39°F (4°C). Spring brings a steady warm-up, with surface temperatures often rising through roughly 40–60°F (4–16°C). By summer the lake commonly reaches its warmest surface values, often in the range of about 68–80°F (20–27°C) on typical hot days. In autumn the surface cools again, generally dropping back into the 45–60°F (7–16°C) range before ice-up.
Swimming at Lake Hanska is generally possible where there is public access or private shorefront use, but it is subject to local conditions and advisories. Because the lake is relatively shallow, it warms quickly in summer and can be pleasant for swimming when surface temperatures are in the upper 60s to 70s °F (20–25 °C). However, shallow lakes in this region are also prone to summertime algal blooms and transient bacterial contamination after heavy rains, so local health or park postings may close or warn against swimming. Check posted signs or county advisories and avoid entering water that looks discolored or smells strongly of algae.