This data the coastal Kewaunee 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.
Water temperature in Kewaunee today is 65.1°F. Based on our historical data over a period of ten years, the warmest water in this day in Kewaunee was recorded in 2024 and was 68.7°F, and the coldest was recorded in 2014 at 54.7°F. Water temperature in Kewaunee is expected to drop to 57.6°F in the next 10 days. October average water temperature in Kewaunee is 55.4°F, the minimum temperature is 45°F, and the maximum is 68.9°F.
The swimming season in Kewaunee lasts from July to August. During those months, Kewaunee water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Kewaunee in winter reaches 37.2°F, in spring 38.7°F, in summer the average temperature rises to 61.3°F, and in autumn it is 55°F.
October 2, 2025 |
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today temp |
65.1°F |
October 1, 2025 |
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yesterday temp |
64.8°F |
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 Kewaunee. 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 Kewaunee. Data in table shown for October 2, 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 |
---|---|---|---|
0' 11" | 1' 7" | 2' 2" | 2' 7" |
0.28 m | 0.49 m | 0.65 m | 0.78 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
2' 9" | 2' 7" | 2' 5" | 2' 1" |
0.83 m | 0.79 m | 0.74 m | 0.64 m |
Data in a table show Kewaunee temperature today (October 2, 2025). For more information and forecast for a few days, go to the weather forecast Kewaunee.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
63.5°F | 62.8°F | 62.8°F | 64°F |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
66.6°F | 68.2°F | 66.9°F | 63.1°F |
You may also be interested in other sections of our site for Kewaunee: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly water temperature in Kewaunee. 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 Kewaunee 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 | 36.9°F | 31.5°F | 42.4°F | cold |
Water temperature in Kewaunee in January | ||||
February | 35.1°F | 30.7°F | 38.3°F | cold |
Water temperature in Kewaunee in February | ||||
March | 35.4°F | 30.9°F | 40.1°F | cold |
Water temperature in Kewaunee in March | ||||
April | 37.8°F | 32.5°F | 44.2°F | cold |
Water temperature in Kewaunee in April | ||||
May | 42.8°F | 34.3°F | 52.5°F | cold |
Water temperature in Kewaunee in May | ||||
June | 52.3°F | 39.7°F | 63.5°F | cold |
Water temperature in Kewaunee in June | ||||
July | 63.7°F | 50.7°F | 74.7°F | cold |
Water temperature in Kewaunee in July | ||||
August | 68°F | 55.4°F | 74.5°F | warm |
Water temperature in Kewaunee in August | ||||
September | 64°F | 54.5°F | 71.6°F | cold |
Water temperature in Kewaunee in September | ||||
October | 55.4°F | 45°F | 68.9°F | cold |
Water temperature in Kewaunee in October | ||||
November | 45.5°F | 38.8°F | 57.2°F | cold |
Water temperature in Kewaunee in November | ||||
December | 39.6°F | 34°F | 46.9°F | cold |
Water temperature in Kewaunee in December |