Grand Haven water temp
This data the coastal Grand Haven 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 Grand Haven
Water temperature in Grand Haven today is 66.4°F. Based on our historical data over a period of ten years, the warmest water in this day in Grand Haven was recorded in 2016 and was 70.2°F, and the coldest was recorded in 2018 at 58.8°F. Water temperature in Grand Haven is expected to drop to 62.6°F in the next 10 days. September average water temperature in Grand Haven is 66.9°F, the minimum temperature is 53.8°F, and the maximum is 76.3°F.
The swimming season in Grand Haven lasts from July to September. During those months, Grand Haven water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Grand Haven in winter reaches 39°F, in spring 41°F, in summer the average temperature rises to 66.7°F, and in autumn it is 59°F.
Grand Haven water temperature now
| September 22, 2025 |
|---|
| today temp |
| 66.4°F |
| September 21, 2025 |
|---|
| yesterday temp |
| 66.9°F |
Surf Forecast in Grand Haven 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 Grand Haven. 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 Grand Haven. Data in table shown for September 22, 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' 1" | 0' 3" | 0' 11" | 0' 10" |
| 0.02 m | 0.07 m | 0.27 m | 0.26 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 0' 11" | 1' 1" | 1' 1" | 0' 10" |
| 0.27 m | 0.34 m | 0.34 m | 0.26 m |
Surf report in Grand Haven
Grand Haven weather forecast
Current temperature and weather
Data in a table show Grand Haven temperature today (September 22, 2025). For more information and forecast for a few days, go to the weather forecast Grand Haven.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | | |
| 67.8°F | 66.6°F | 66.2°F | 66.2°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
|  |  |  |
| 66.9°F | 68.4°F | 67.8°F | 66.6°F |
You may also be interested in other sections of our site for Grand Haven: Sunrise and Sunset, Tides
Grand Haven water temperature by month
These figures shows the average, minimum and maximum monthly water temperature in Grand Haven. 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 Grand Haven 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 | 38.3°F | 31.3°F | 44.1°F | cold |
| Water temperature in Grand Haven in January | ||||
| February | 34.7°F | 31.1°F | 39.2°F | cold |
| Water temperature in Grand Haven in February | ||||
| March | 34.9°F | 30.7°F | 42.3°F | cold |
| Water temperature in Grand Haven in March | ||||
| April | 39.4°F | 31.8°F | 49.1°F | cold |
| Water temperature in Grand Haven in April | ||||
| May | 48.7°F | 37.8°F | 61.3°F | cold |
| Water temperature in Grand Haven in May | ||||
| June | 60.4°F | 45.7°F | 73.6°F | cold |
| Water temperature in Grand Haven in June | ||||
| July | 69.1°F | 52.5°F | 77.5°F | warm |
| Water temperature in Grand Haven in July | ||||
| August | 70.5°F | 57.7°F | 77.9°F | warm |
| Water temperature in Grand Haven in August | ||||
| September | 66.9°F | 53.8°F | 76.3°F | cold |
| Water temperature in Grand Haven in September | ||||
| October | 59.2°F | 46.8°F | 67.6°F | cold |
| Water temperature in Grand Haven in October | ||||
| November | 51.1°F | 43.5°F | 59.7°F | cold |
| Water temperature in Grand Haven in November | ||||
| December | 43.9°F | 38.3°F | 50.2°F | cold |
| Water temperature in Grand Haven in December | ||||
Chart monthly average water temperature in Grand Haven
