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Green Bay
Water Temperature in Green Bay in Lake Michigan: Current and Forecast
On this page, you will find comprehensive information about the water temperature in Green Bay in Lake Michigan, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Green Bay
49°F
TODAY
49°F
YESTERDAY
48°F
A WEEK AGO
As of today, the minimum water temperature in Green Bay ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing can be used.
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.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for Lake Michigan in Green Bay Over the Last 30 Days
Today the water temperature in Green Bay is higher than the same day in previous years. The water temperature range here in May is from 37°F to 50°F. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.
The forecasted water temperature values for Green Bay are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Table of Daily Water Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Apr 29 | 48°F | 40°F | |
| Apr 30 | 49°F | 40°F | |
| May 1 | 49°F | 44°F | |
| May 2 | 50°F | 44°F | |
| May 3 | 50°F | 44°F | |
| May 4 | 49°F | 44°F | |
| May 5 | 49°F | 44°F | |
| May 6 | 49°F | 44°F | |
| May 7 | 44°F | 49°F | |
| May 8 | 44°F | 49°F | |
| May 9 | 44°F | 48°F | |
| May 10 | 44°F | 48°F | |
| May 11 | 44°F | 48°F | |
| May 12 | 44°F | 48°F | |
| May 13 | 44°F | 47°F | |
| May 14 | 44°F | 47°F |
Water Temperature Ranges in Green Bay by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 38°F | 43°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 30°F | 34°F | 37°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 30°F | 37°F | 43°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 40°F | 48°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 44°F | 50°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 54°F | 61°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 61°F | 68°F | 75°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 61°F | 68°F | 75°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 55°F | 64°F | 73°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 66°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 48°F | 57°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 40°F | 46°F |
Monthly Water Temperature Histogram for Lake Michigan in Green Bay
Known Beaches in the Area of Green Bay?
Bay Beach
Bay Beach is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Green Bay. There is parking. There are restrooms.
Communiversity Park Beach
Communiversity Park Beach is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Green Bay. There is parking. There are restrooms. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Joliet Park
Joliet Park is a 2-stars sandy beach, located in a 9 km (6 miles) radius of Green Bay. Snorkeling is possible.
Green Bay Weather
MAY 7
50°F / 72°F
overcastrain: 3% | wind: 21 mph
MAY 8
36°F / 52°F
overcastrain: 0% | wind: 21 mph
MAY 9
37°F / 61°F
overcastrain: 0% | wind: 8 mph
MAY 10
48°F / 63°F
moderate drizzlerain: 14% | wind: 12 mph
MAY 11
43°F / 64°F
overcastrain: 10% | wind: 11 mph
MAY 12
55°F / 68°F
mainly clearrain: 4% | wind: 15 mph
Water Temperature in Green Bay: General Trends and Swimming Opportunities
Green Bay, Wisconsin, is located along the western shore of Lake Michigan, offering beautiful views and a variety of recreational activities on the water. The temperature of Lake Michigan near Green Bay can vary greatly depending on the time of year. During the summer months, the water temperature typically ranges from 60°F to 70°F (16°C to 21°C). While these temperatures are relatively cool, they can still provide a refreshing experience for those engaging in water activities like boating, kayaking, and paddleboarding. However, the water is often too cold for comfortable swimming, especially early in the season when the lake’s temperatures are still influenced by colder spring conditions.
Swimmers in Green Bay may find the lake's cool waters challenging for extended swimming, especially in the earlier part of the summer. As the season progresses, some people do take a dip, but the chilly waters can make it less inviting for a casual swim. The lake’s beaches and parks, such as Bay Beach, are popular for relaxation, picnicking, and enjoying the views, even if swimming isn’t the main focus for many visitors. People often opt for other water-based activities like fishing or taking boat tours to explore the bay area.
For those looking for warmer options, Green Bay also has public pools where the water temperature is maintained at a more comfortable range, around 78°F to 82°F (25°C to 28°C), ideal for swimming. Additionally, nearby smaller lakes and inland waterways may offer warmer swimming conditions, especially as the summer progresses, attracting those who want to enjoy a more traditional swimming experience without the cooler temperatures of Lake Michigan.
Geographical Location of Green Bay
Frequently Asked Questions About Green Bay and its Water Temperatures
What is the current water temperature in Green Bay?
The water temperature today in Green Bay is 49°F (9.7°C).
What is the water temperature in Green Bay during the summer months?
The average water temperature in Green Bay during the summer months is typically between 54°F to 68°F (12°C to 20°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Green Bay in May?
The average water temperature in Green Bay in May ranges from 37°F to 50°F (3°C to 10°C).
What is the water temperature in Green Bay in September?
The average water temperature in Green Bay in September is typically between 55°F to 73°F (13°C to 23°C).
Is it possible to swim in the Lake Michigan in Green Bay, and what are the available options for doing so?
Yes, it is possible to swim in Lake Michigan in Green Bay. Locals and visitors typically swim at city parks like Bay Beach or at designated beach areas.