Door County water temp
This data the coastal Door County 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 Door County
Water temperature in Door County today is 62.2°F. Based on our historical data over a period of ten years, the warmest water in this day in Door County was recorded in 2016 and was 69.1°F, and the coldest was recorded in 2019 at 63°F. Water temperature in Door County is expected to rise to 63.5°F in the next 10 days. September average water temperature in Door County is 64.4°F, the minimum temperature is 54.1°F, and the maximum is 71.4°F.
The swimming season in Door County lasts from July to August. During those months, Door County water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Door County in winter reaches 37.8°F, in spring 37.9°F, in summer the average temperature rises to 61.9°F, and in autumn it is 55.8°F.
Door County water temperature now
| September 9, 2025 |
|---|
| today temp |
| 62.2°F |
| September 8, 2025 |
|---|
| yesterday temp |
| 63.5°F |
Surf Forecast in Door County 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 Door County. 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 Door County. Data in table shown for September 9, 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 |
|---|---|---|---|
| 4' 0" | 3' 10" | 3' 7" | 3' 4" |
| 1.21 m | 1.18 m | 1.08 m | 1.01 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 3' 1" | 3' 1" | 3' 2" | 3' 1" |
| 0.94 m | 0.94 m | 0.97 m | 0.95 m |
Surf report in Door County
Door County weather forecast
Current temperature and weather
Data in a table show Door County temperature today (September 9, 2025). For more information and forecast for a few days, go to the weather forecast Door County.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | | |
| 62.4°F | 62.1°F | 61.2°F | 63.3°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 |  | |  |
| 69.3°F | 69.8°F | 66.9°F | 65.8°F |
You may also be interested in other sections of our site for Door County: Sunrise and Sunset, Tides
Door County water temperature by month
These figures shows the average, minimum and maximum monthly water temperature in Door County. 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 Door County 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 | 37.4°F | 32.4°F | 42.4°F | cold |
| Water temperature in Door County in January | ||||
| February | 35.2°F | 31.1°F | 38.8°F | cold |
| Water temperature in Door County in February | ||||
| March | 35.2°F | 31.1°F | 39.4°F | cold |
| Water temperature in Door County in March | ||||
| April | 37°F | 32°F | 42.1°F | cold |
| Water temperature in Door County in April | ||||
| May | 41.5°F | 34.5°F | 51.6°F | cold |
| Water temperature in Door County in May | ||||
| June | 52.2°F | 40.8°F | 63.9°F | cold |
| Water temperature in Door County in June | ||||
| July | 64.9°F | 49.5°F | 75.6°F | cold |
| Water temperature in Door County in July | ||||
| August | 68.7°F | 60.3°F | 74.7°F | warm |
| Water temperature in Door County in August | ||||
| September | 64.4°F | 54.1°F | 71.4°F | cold |
| Water temperature in Door County in September | ||||
| October | 56.3°F | 47.5°F | 67.1°F | cold |
| Water temperature in Door County in October | ||||
| November | 46.8°F | 38.8°F | 57.4°F | cold |
| Water temperature in Door County in November | ||||
| December | 40.8°F | 34.7°F | 49.5°F | cold |
| Water temperature in Door County in December | ||||
Chart monthly average water temperature in Door County
