Girl Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Girl Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Girl Lake today is 22°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 |
|---|---|---|---|
| AUG 24 | 22.0°C | 24.5°C | |
| AUG 25 | 22.0°C | 24.5°C | |
| AUG 26 | 21.7°C | 24.5°C | |
| AUG 27 | 21.8°C | 24.5°C | |
| AUG 28 | 22.1°C | 24.5°C | |
| AUG 29 | 22.1°C | 24.5°C | |
| AUG 30 | 22.1°C | 24.5°C | |
| AUG 31 | 22.2°C | 24.5°C | |
| SEP 1 | 19.0°C | 21.9°C | |
| SEP 2 | 19.0°C | 21.7°C | |
| SEP 3 | 19.0°C | 21.6°C | |
| SEP 4 | 19.0°C | 21.4°C | |
| SEP 5 | 19.0°C | 21.3°C | |
| SEP 6 | 19.0°C | 21.1°C | |
| SEP 7 | 19.0°C | 21.0°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 | 7°C | 12°C |
| February | 0°C | 8°C | 15°C |
| March | 0°C | 9°C | 17°C |
| April | 1°C | 11°C | 20°C |
| May | 6°C | 14°C | 21°C |
| June | 12°C | 17°C | 22°C |
| July | 17°C | 21°C | 26°C |
| August | 21°C | 25°C | 28°C |
| September | 16°C | 19°C | 22°C |
| October | 5°C | 12°C | 18°C |
| November | 4°C | 8°C | 11°C |
| December | 3°C | 6°C | 8°C |
Girl Lake: Water Temperature by Location
Girl Lake: Weather Forecast
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September 6
Location & Local Information
Girl Lake in Minnesota experiences the same seasonal temperature shifts typical of small northern lakes. Surface temperatures are usually close to freezing in winter, around 32°F (0°C), with the lake commonly ice-covered for months. In spring the water gradually warms from roughly 40–55°F (4–13°C) as ice melts and runoff cools the upper layer. Summer brings the warmest conditions, when surface readings often reach about 68–78°F (20–26°C) on sunny days, though wind, depth and inflows can keep sections cooler. By fall the lake cools back toward the 45–60°F (7–16°C) range before freezing resumes. Deeper water remains colder year-round, and short-term weather, rainfall and groundwater inputs can produce noticeable variation.
Swimming at Girl Lake is possible where access is legal and conditions are safe, but it is governed by practical and local considerations rather than a blanket prohibition. Public access points, private shorelines, local ordinances and seasonal water-quality advisories determine whether people actually enter the water. Hazards that might limit swimming include low temperatures and cold-shock risk outside mid-summer, ice in shoulder seasons, aquatic vegetation, and occasional algal blooms or bacterial advisories that affect water quality. For safe recreation, check local signage and health advisories, respect private property, and be mindful of temperature-related risks such as hypothermia.