Madison (WI) water temp
This data the coastal Madison water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Current water temperature in Madison
Water temperature in Madison today is 66.2°F. Based on our historical data over a period of ten years, the warmest water in this day in Madison was, like today, 66.2°F, and the coldest was recorded in 2022 at 59°F. Water temperature in Madison is expected to drop to 59°F in the next 10 days. September average water temperature in Madison is 65.5°F, the minimum temperature is 51.8°F, and the maximum is 77°F.
The swimming season in Madison lasts from July to August. During those months, Madison water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Madison in winter reaches 37°F, in spring 47.1°F, in summer the average temperature rises to 70°F, and in autumn it is 53.8°F.
Madison water temperature now
| September 26, 2025 |
|---|
| today temp |
| 66.2°F |
| September 25, 2025 |
|---|
| yesterday temp |
| 66.2°F |
Current temperature and weather
Data in a table show Madison temperature today (September 26, 2025). For more information and forecast for a few days, go to the weather forecast Madison.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 61.2°F | 59.7°F | 59.7°F | 65.8°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| |  | |
| 77°F | 82.2°F | 71.4°F | 63.7°F |
You may also be interested in other sections of our site for Madison: Sunrise and Sunset
Madison water temperature by month
These figures shows the average, minimum and maximum monthly water temperature in Madison. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Madison on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
| Month | Avr | Min | Max | |
|---|---|---|---|---|
| January | 37°F | 33.8°F | 37.4°F | cold |
| Water temperature in Madison in January | ||||
| February | 37°F | 33.8°F | 37.4°F | cold |
| Water temperature in Madison in February | ||||
| March | 38.5°F | 33.8°F | 46.4°F | cold |
| Water temperature in Madison in March | ||||
| April | 45.1°F | 37.4°F | 57.2°F | cold |
| Water temperature in Madison in April | ||||
| May | 57.7°F | 41°F | 68°F | cold |
| Water temperature in Madison in May | ||||
| June | 67.6°F | 59°F | 78.8°F | cold |
| Water temperature in Madison in June | ||||
| July | 71.6°F | 68°F | 78.8°F | warm |
| Water temperature in Madison in July | ||||
| August | 70.9°F | 66.2°F | 77°F | warm |
| Water temperature in Madison in August | ||||
| September | 65.5°F | 51.8°F | 77°F | cold |
| Water temperature in Madison in September | ||||
| October | 53.1°F | 41°F | 68°F | cold |
| Water temperature in Madison in October | ||||
| November | 43°F | 37.4°F | 55.4°F | cold |
| Water temperature in Madison in November | ||||
| December | 37.2°F | 33.8°F | 42.8°F | cold |
| Water temperature in Madison in December | ||||
Chart monthly average water temperature in Madison
