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 19.5°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 |
|---|---|---|---|
| JUN 3 | 17.6°C | 17.5°C | |
| JUN 4 | 17.7°C | 17.5°C | |
| JUN 5 | 17.9°C | 17.5°C | |
| JUN 6 | 18.2°C | 17.5°C | |
| JUN 7 | 18.9°C | 17.5°C | |
| JUN 8 | 19.2°C | 17.5°C | |
| JUN 10 | 19.5°C | 17.5°C | |
| JUN 11 | 17.5°C | 19.4°C | |
| JUN 12 | 17.5°C | 19.3°C | |
| JUN 13 | 17.5°C | 19.2°C | |
| JUN 14 | 17.5°C | 19.1°C | |
| JUN 15 | 17.5°C | 19.0°C | |
| JUN 16 | 17.5°C | 18.9°C | |
| JUN 17 | 17.5°C | 18.8°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 | 21°C | 25°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
June 9
June 10
June 11
June 12
June 13
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.