Bass Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Bass Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Bass Lake today is 21.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 24 | 19.5°C | 21.0°C | |
| JUN 25 | 19.5°C | 21.0°C | |
| JUN 26 | 19.6°C | 21.0°C | |
| JUN 27 | 20.4°C | 21.0°C | |
| JUN 28 | 21.4°C | 21.0°C | |
| JUN 29 | 20.7°C | 21.0°C | |
| JUN 30 | 20.8°C | 21.0°C | |
| JUL 1 | 21.6°C | 23.5°C | |
| JUL 2 | 23.5°C | 21.7°C | |
| JUL 3 | 23.5°C | 21.8°C | |
| JUL 4 | 23.5°C | 21.9°C | |
| JUL 5 | 23.5°C | 22.0°C | |
| JUL 6 | 23.5°C | 22.1°C | |
| JUL 7 | 23.5°C | 22.2°C | |
| JUL 8 | 23.5°C | 22.3°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 | 1°C | 4°C |
| February | 0°C | 2°C | 4°C |
| March | 0°C | 2°C | 5°C |
| April | 3°C | 9°C | 15°C |
| May | 11°C | 16°C | 22°C |
| June | 15°C | 21°C | 27°C |
| July | 20°C | 24°C | 27°C |
| August | 20°C | 24°C | 28°C |
| September | 18°C | 21°C | 23°C |
| October | 6°C | 13°C | 20°C |
| November | 2°C | 7°C | 11°C |
| December | 1°C | 4°C | 6°C |
Bass Lake: Water Temperature by Location
Bass Lake: Weather Forecast
July 1
July 2
July 3
July 4
July 5
July 6
Location & Local Information
Bass Lake in Wisconsin follows the pattern of many northern inland lakes, with cool water in spring that warms through summer and then cools again in fall and winter. After ice-out in April and May the surface can range roughly from 40–60°F (4–16°C). By midsummer, especially in July and early August, typical surface temperatures are often in the 68–78°F range (20–26°C), and on very warm, shallow bays can climb into the low 80s (~27–28°C). As air temperatures fall in September and October the lake usually cools back into the 50s (10–15°C), and by winter the surface approaches freezing near 32°F (0°C) and often supports ice cover.
Swimming is generally permitted and is most comfortable when surface temperatures are at their summer highs; many locals swim from late June through August when water is warmest. However, actual access and rules depend on shoreline ownership, public beaches, and any posted advisories, and water quality or algal blooms can occasionally lead to temporary restrictions. Even when swimming is allowed, shallow areas warm up faster than deep water, and swimmers should be mindful of boat traffic, lack of lifeguards at informal sites, and sudden temperature changes in deeper sections.