Monroe Harbor water temp
This data the coastal Monroe Harbor 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 Monroe Harbor
Water temperature in Monroe Harbor today is 70°F. Based on our historical data over a period of ten years, the warmest water in this day in Monroe Harbor was recorded in 2023 and was 74.5°F, and the coldest was recorded in 2019 at 64.6°F. Water temperature in Monroe Harbor is expected to drop to 68.9°F in the next 10 days. September average water temperature in Monroe Harbor is 69.1°F, the minimum temperature is 62.4°F, and the maximum is 75.2°F.
The swimming season in Monroe Harbor lasts from July to September. During those months, Monroe Harbor water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Monroe Harbor in winter reaches 36.7°F, in spring 43.3°F, in summer the average temperature rises to 68.9°F, and in autumn it is 59.2°F.
Monroe Harbor water temperature now
| September 5, 2025 |
|---|
| today temp |
| 70°F |
| September 4, 2025 |
|---|
| yesterday temp |
| 71.2°F |
Surf Forecast in Monroe Harbor 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 Monroe Harbor. 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 Monroe Harbor. Data in table shown for September 5, 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' 3" | 1' 7" | 1' 10" | 1' 8" |
| 0.37 m | 0.48 m | 0.56 m | 0.52 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 1' 11" | 1' 10" | 1' 10" | 1' 8" |
| 0.58 m | 0.56 m | 0.57 m | 0.5 m |
Surf report in Monroe Harbor
Monroe Harbor weather forecast
Current temperature and weather
Data in a table show Monroe Harbor temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Monroe Harbor.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | |  |
| 59.9°F | 59.9°F | 59.2°F | 61.2°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 |  | | |
| 66.4°F | 67.8°F | 64.9°F | 61.2°F |
You may also be interested in other sections of our site for Monroe Harbor: Sunrise and Sunset, Tides
Monroe Harbor water temperature by month
These figures shows the average, minimum and maximum monthly water temperature in Monroe Harbor. 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 Monroe Harbor 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 | 35.2°F | 30.4°F | 41.7°F | cold |
| Water temperature in Monroe Harbor in January | ||||
| February | 33.6°F | 30.7°F | 38.1°F | cold |
| Water temperature in Monroe Harbor in February | ||||
| March | 36.3°F | 31.1°F | 45.1°F | cold |
| Water temperature in Monroe Harbor in March | ||||
| April | 42.4°F | 34.9°F | 50.4°F | cold |
| Water temperature in Monroe Harbor in April | ||||
| May | 51.4°F | 43.3°F | 65.5°F | cold |
| Water temperature in Monroe Harbor in May | ||||
| June | 62.4°F | 54°F | 72.7°F | cold |
| Water temperature in Monroe Harbor in June | ||||
| July | 71.2°F | 60.8°F | 78.4°F | warm |
| Water temperature in Monroe Harbor in July | ||||
| August | 73.2°F | 65.5°F | 77.4°F | warm |
| Water temperature in Monroe Harbor in August | ||||
| September | 69.1°F | 62.4°F | 75.2°F | warm |
| Water temperature in Monroe Harbor in September | ||||
| October | 59.4°F | 49.1°F | 68.7°F | cold |
| Water temperature in Monroe Harbor in October | ||||
| November | 49.3°F | 39.9°F | 58.6°F | cold |
| Water temperature in Monroe Harbor in November | ||||
| December | 41°F | 32.2°F | 47.8°F | cold |
| Water temperature in Monroe Harbor in December | ||||
Chart monthly average water temperature in Monroe Harbor
