Big Bay de Noc — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Big Bay de Noc, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Big Bay de Noc today is 23.7°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 4 | 23.9°C | 23.5°C | |
| AUG 5 | 23.7°C | 23.5°C | |
| AUG 6 | 24.0°C | 23.5°C | |
| AUG 7 | 23.6°C | 23.5°C | |
| AUG 8 | 23.9°C | 23.5°C | |
| AUG 9 | 23.6°C | 23.5°C | |
| AUG 10 | 23.7°C | 23.5°C | |
| AUG 11 | 23.5°C | 23.5°C | |
| AUG 12 | 23.5°C | 23.7°C | |
| AUG 13 | 23.5°C | 23.7°C | |
| AUG 14 | 23.5°C | 23.7°C | |
| AUG 15 | 23.5°C | 23.7°C | |
| AUG 16 | 23.5°C | 23.7°C | |
| AUG 17 | 23.5°C | 23.6°C | |
| AUG 18 | 23.5°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 | 2°C | 5°C | 7°C |
| February | 1°C | 5°C | 8°C |
| March | 0°C | 3°C | 5°C |
| April | 3°C | 7°C | 12°C |
| May | 7°C | 15°C | 23°C |
| June | 13°C | 18°C | 22°C |
| July | 17°C | 22°C | 27°C |
| August | 20°C | 24°C | 27°C |
| September | 12°C | 17°C | 21°C |
| October | 12°C | 15°C | 18°C |
| November | 0°C | 6°C | 12°C |
| December | 0°C | 3°C | 6°C |
Big Bay de Noc: Water Temperature by Location
Big Bay de Noc: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
Big Bay de Noc is an embayment of Lake Michigan along Michigan’s Upper Peninsula, and its water temperatures follow a strong seasonal rhythm. In winter the bay often approaches freezing and can ice over, with surface temperatures around 32°F (0°C) or lower where ice persists. Spring sees a gradual rise, typically from the mid-30s to mid-50s °F (about 2–13°C) as the lake sheds ice and solar warming begins. Summer brings the warmest surface readings, commonly in the 60s to mid-70s °F (15–24°C) on warm, calm days; sheltered shallows can warm slightly more while deeper or wind-exposed areas remain cooler. By autumn the water cools again, often falling into the mid-40s to low-60s °F (7–16°C) depending on air temperatures and storms. Local depth, wind, and time of day create notable variation in these ranges.
Swimming is generally allowed at public access points and beaches around Big Bay de Noc, and many visitors swim in summer when surface temperatures are highest. However, seasonal cold, sudden weather changes, boat traffic, and limited lifeguard coverage mean swimmers should exercise caution: cold-water shock is a real risk below about 60°F (15°C), and conditions can change rapidly. Water quality is usually suitable for recreation but it’s wise to check local advisories and use designated swimming areas when available.