Grand River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Grand River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Grand River 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 |
|---|---|---|---|
| SEP 12 | 21.5°C | 17.0°C | |
| SEP 13 | 20.4°C | 17.0°C | |
| SEP 14 | 20.9°C | 17.0°C | |
| SEP 15 | 21.4°C | 17.0°C | |
| SEP 16 | 20.2°C | 17.0°C | |
| SEP 17 | 19.7°C | 17.0°C | |
| SEP 18 | 19.5°C | 17.0°C | |
| SEP 19 | 19.4°C | 17.0°C | |
| SEP 20 | 17.0°C | 19.4°C | |
| SEP 21 | 17.0°C | 19.3°C | |
| SEP 22 | 17.0°C | 19.1°C | |
| SEP 23 | 17.0°C | 19.0°C | |
| SEP 24 | 17.0°C | 18.9°C | |
| SEP 25 | 17.0°C | 18.8°C | |
| SEP 26 | 17.0°C | 18.6°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 | 1°C | 5°C | 9°C |
| February | 0°C | 5°C | 9°C |
| March | 1°C | 6°C | 11°C |
| April | 4°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 22°C |
| July | 17°C | 23°C | 29°C |
| August | 17°C | 21°C | 26°C |
| September | 11°C | 17°C | 23°C |
| October | 8°C | 15°C | 21°C |
| November | 3°C | 8°C | 16°C |
| December | 1°C | 5°C | 8°C |
Grand River: Water Temperature by Location
Grand River: Weather Forecast
September 20
September 21
September 22
September 23
Location & Local Information
Source:
• location Somerset Township, Hillsdale County, Michigan
Mouth:
• location Grand Haven, Michigan
Length 252 mi (406 km)
The Grand River, flowing through Michigan, is the longest river in the state and offers a variety of recreational opportunities, including fishing, boating, and paddling. The water temperature in the Grand River varies depending on the season. During the summer months, especially from June to August, the water temperature tends to rise to between 70°F and 75°F (21°C to 24°C). This makes the river relatively pleasant for some people who enjoy taking a quick dip or wading in the water. However, the water can sometimes be murky due to the river's flow through urban areas, which may detract from the swimming experience for some.
In the spring and fall, the water temperature typically drops to between 50°F and 60°F (10°C to 15°C), making swimming less inviting for most people. The Grand River is also known for its occasional strong currents, particularly in areas with narrower sections or where tributaries feed into the river. These currents can make swimming more difficult and pose a risk for swimmers, especially in areas where the flow rate is faster or when the river's water level fluctuates due to rainfall or dam releases.
While the Grand River is not particularly known as a prime swimming destination, it is a popular location for boating, kayaking, and fishing. Many people enjoy the scenic beauty of the river and its surrounding areas, with parks and nature trails nearby. For those looking for a safer swimming experience, there are other designated swimming areas in lakes or recreational parks near the Grand River, where the water is generally cleaner and calmer.