Douglas Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Douglas Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Douglas Lake today is 18.6°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 |
|---|---|---|---|
| AUG 4 | 23.4°C | 23.3°C | |
| AUG 5 | 23.3°C | 23.3°C | |
| AUG 6 | 22.6°C | 23.3°C | |
| AUG 7 | 22.6°C | 23.3°C | |
| AUG 8 | 18.5°C | 23.3°C | |
| AUG 9 | 18.6°C | 23.3°C | |
| AUG 10 | 18.6°C | 23.3°C | |
| AUG 11 | 18.6°C | 23.3°C | |
| AUG 12 | 23.3°C | 18.8°C | |
| AUG 13 | 23.3°C | 19.1°C | |
| AUG 14 | 23.3°C | 19.3°C | |
| AUG 15 | 23.3°C | 19.5°C | |
| AUG 16 | 23.3°C | 19.8°C | |
| AUG 17 | 23.3°C | 20.0°C | |
| AUG 18 | 23.3°C | 20.2°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 | 3°C | 6°C |
| February | 0°C | 2°C | 5°C |
| March | 1°C | 3°C | 6°C |
| April | 2°C | 6°C | 10°C |
| May | 3°C | 10°C | 17°C |
| June | 11°C | 18°C | 24°C |
| July | 17°C | 22°C | 27°C |
| August | 18°C | 23°C | 28°C |
| September | 16°C | 22°C | 27°C |
| October | 10°C | 15°C | 19°C |
| November | 3°C | 8°C | 11°C |
| December | 0°C | 3°C | 7°C |
Douglas Lake: Water Temperature by Location
Douglas Lake: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
Douglas Lake in northern Michigan experiences a clear seasonal cycle in water temperature. In winter months the surface typically hovers near freezing, roughly 32–40°F (0–4°C) beneath ice. Spring warming brings temperatures up to about 40–60°F (4–16°C) as the lake stratifies. Peak summer conditions from June through August commonly yield comfortable swimming temperatures in the range of about 68–78°F (20–26°C), with occasional warm spells pushing surface readings toward 80°F (27°C). In fall the lake cools again to roughly 50–68°F (10–20°C) as air temperatures drop and mixing returns.
Swimming is generally allowed at Douglas Lake where private and public shorelines provide access, and many residents and visitors swim during the warmer months. Comfortable summer temperatures make recreational swimming popular, while cooler spring and fall water increases the risk of cold shock and reduces endurance. In winter the lake is typically iced over, so regular open-water swimming is not advisable except for experienced, well-prepared ice swimmers taking proper safety precautions. As with any inland lake, local water-quality advisories, underwater vegetation, boat traffic, and posted rules should be checked before entering the water.