Lake DuBay — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake DuBay, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake DuBay today is 18.3°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 | 19.6°C | 18.1°C | |
| SEP 15 | 19.4°C | 18.1°C | |
| SEP 16 | 19.4°C | 18.1°C | |
| SEP 17 | 19.3°C | 18.1°C | |
| SEP 18 | 19.0°C | 18.1°C | |
| SEP 19 | 19.2°C | 18.1°C | |
| SEP 20 | 19.3°C | 18.1°C | |
| SEP 21 | 18.3°C | 18.1°C | |
| SEP 22 | 18.1°C | 18.3°C | |
| SEP 23 | 18.1°C | 18.3°C | |
| SEP 24 | 18.1°C | 18.3°C | |
| SEP 25 | 18.1°C | 18.3°C | |
| SEP 26 | 18.1°C | 18.3°C | |
| SEP 27 | 18.1°C | 18.2°C | |
| SEP 28 | 18.1°C | 18.2°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 | 3°C |
| February | 0°C | 2°C | 4°C |
| March | 0°C | 2°C | 5°C |
| April | 1°C | 8°C | 15°C |
| May | 7°C | 14°C | 21°C |
| June | 15°C | 18°C | 22°C |
| July | 19°C | 23°C | 28°C |
| August | 19°C | 25°C | 30°C |
| September | 14°C | 18°C | 23°C |
| October | 9°C | 14°C | 18°C |
| November | 4°C | 9°C | 13°C |
| December | 0°C | 2°C | 5°C |
Lake DuBay: Water Temperature by Location
Lake DuBay: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Lake DuBay’s surface water follows a typical central Wisconsin seasonal pattern. During summer months (June–August) surface temperatures commonly range from about 68–78°F (20–26°C), and can climb into the low 80s°F (27–28°C) during extended heat spells. Spring (March–May) and fall (September–November) bring much cooler values, roughly 40–60°F (4–16°C) as the lake warms or cools. In winter the lake is often ice-covered and surface temperatures are close to freezing, around 32–36°F (0–2°C); deeper water remains colder year-round, often near freshwater’s density maximum around 39°F (4°C) below the surface layer.
Swimming in Lake DuBay is commonly done in the warmer months and is generally allowed at public access points and along shorelines, but conditions vary. Summer surface temperatures make recreational swimming comfortable, yet swimmers should be mindful of boat traffic, fluctuating water levels, submerged structures, and the absence of lifeguards at many sites. Outside summer, cold-water shock and hypothermia risk make swimming unsafe, and winter ice cover creates additional hazards. Visitors are advised to observe posted signs, use designated launch or beach areas when available, and exercise usual water-safety precautions.