Madison water temp
This data the coastal Madison ocean 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 ocean 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 the Atlantic Ocean near Madison was recorded in 2021 and was 69.3°F, and the coldest was recorded in 2010 at 63.1°F. Sea water temperature in Madison is expected to drop to 61.9°F in the next 10 days. October average water temperature in Madison is 64.6°F, the minimum temperature is 57.2°F, and the maximum is 70.7°F.
The swimming season in Madison lasts from July to September. 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 41.7°F, in spring 45.3°F, in summer the average temperature rises to 69.1°F, and in autumn it is 63.7°F.
Madison water temperature now
| October 16, 2025 |
|---|
| today temp |
| 66.2°F |
| October 15, 2025 |
|---|
| yesterday temp |
| 66.2°F |
The ocean salinity in Madison is 27.65‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Madison for today
Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Madison. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Madison. Data in table shown for October 17, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
| 1' 11" | 1' 7" | 1' 5" | 1' 5" |
| 0.58 m | 0.47 m | 0.43 m | 0.42 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 1' 10" | 2' 1" | 2' 6" | 2' 6" |
| 0.55 m | 0.63 m | 0.75 m | 0.77 m |
Surf report in Madison
Madison weather forecast
Current temperature and weather
Data in a table show Madison temperature today (October 17, 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 |
|---|---|---|---|
 | | |  |
| 45.3°F | 42.6°F | 40.8°F | 44.4°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | | |
| 50.4°F | 53.6°F | 52.5°F | 46.9°F |
You may also be interested in other sections of our site for Madison: Sunrise and Sunset, Tides
Madison water temperature by month
These figures shows the average, minimum and maximum monthly sea 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 | 40.6°F | 34.9°F | 48.6°F | cold |
| Ocean water temperature in Madison in January | ||||
| February | 37.4°F | 31.6°F | 42.3°F | cold |
| Ocean water temperature in Madison in February | ||||
| March | 38.8°F | 32.4°F | 49.3°F | cold |
| Ocean water temperature in Madison in March | ||||
| April | 44.1°F | 36°F | 52.5°F | cold |
| Ocean water temperature in Madison in April | ||||
| May | 52.9°F | 44.8°F | 64.4°F | cold |
| Ocean water temperature in Madison in May | ||||
| June | 63°F | 55°F | 71.4°F | cold |
| Ocean water temperature in Madison in June | ||||
| July | 71.2°F | 64°F | 77.2°F | warm |
| Ocean water temperature in Madison in July | ||||
| August | 73°F | 68.4°F | 78.4°F | warm |
| Ocean water temperature in Madison in August | ||||
| September | 70.7°F | 66.7°F | 77.5°F | warm |
| Ocean water temperature in Madison in September | ||||
| October | 64.6°F | 57.2°F | 70.7°F | cold |
| Ocean water temperature in Madison in October | ||||
| November | 55.8°F | 48.2°F | 63.5°F | cold |
| Ocean water temperature in Madison in November | ||||
| December | 46.9°F | 40.3°F | 54.5°F | cold |
| Ocean water temperature in Madison in December | ||||
Chart monthly average water temperature in Madison
