West Yarmouth water temp
This data the coastal West Yarmouth sea 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 sea temperature in West Yarmouth
Water temperature in West Yarmouth today is 72.3°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near West Yarmouth was recorded in 2018 and was 74.5°F, and the coldest was recorded in 2007 at 65.8°F. Sea water temperature in West Yarmouth is expected to drop to 68.9°F in the next 10 days. September average water temperature in West Yarmouth is 68°F, the minimum temperature is 61.5°F, and the maximum is 76.6°F.
The swimming season in West Yarmouth lasts from July to September. During those months, West Yarmouth water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in West Yarmouth in winter reaches 40.3°F, in spring 45.7°F, in summer the average temperature rises to 68.4°F, and in autumn it is 59.9°F.
West Yarmouth water temperature now
| September 5, 2025 |
|---|
| today temp |
| 72.3°F |
| September 4, 2025 |
|---|
| yesterday temp |
| 71.1°F |
The sea salinity in West Yarmouth is 31.87‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in West Yarmouth 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 West Yarmouth. 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 West Yarmouth. 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' 8" | 1' 9" | 1' 10" | 2' 0" |
| 0.51 m | 0.53 m | 0.57 m | 0.62 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 2' 3" | 2' 6" | 2' 11" | 3' 0" |
| 0.68 m | 0.77 m | 0.88 m | 0.92 m |
Surf report in West Yarmouth
West Yarmouth weather forecast
Current temperature and weather
Data in a table show West Yarmouth temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast West Yarmouth.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | | |
| 64.4°F | 64.9°F | 66.7°F | 68.9°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| |  | |
| 71.1°F | 72.1°F | 70.9°F | 69.6°F |
You may also be interested in other sections of our site for West Yarmouth: Sunrise and Sunset, Tides
West Yarmouth water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in West Yarmouth. 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 West Yarmouth 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 | 39.4°F | 32.4°F | 46.9°F | cold |
| Sea water temperature in West Yarmouth in January | ||||
| February | 37.2°F | 30.2°F | 41.9°F | cold |
| Sea water temperature in West Yarmouth in February | ||||
| March | 39°F | 31.5°F | 46.8°F | cold |
| Sea water temperature in West Yarmouth in March | ||||
| April | 45°F | 36.7°F | 51.4°F | cold |
| Sea water temperature in West Yarmouth in April | ||||
| May | 53.1°F | 45.5°F | 62.6°F | cold |
| Sea water temperature in West Yarmouth in May | ||||
| June | 62.2°F | 54°F | 74.1°F | cold |
| Sea water temperature in West Yarmouth in June | ||||
| July | 70.9°F | 61.3°F | 78.8°F | warm |
| Sea water temperature in West Yarmouth in July | ||||
| August | 72.1°F | 64.4°F | 79.9°F | warm |
| Sea water temperature in West Yarmouth in August | ||||
| September | 68°F | 61.5°F | 76.6°F | warm |
| Sea water temperature in West Yarmouth in September | ||||
| October | 60.4°F | 53.1°F | 69.3°F | cold |
| Sea water temperature in West Yarmouth in October | ||||
| November | 51.4°F | 43.7°F | 60.4°F | cold |
| Sea water temperature in West Yarmouth in November | ||||
| December | 44.2°F | 37°F | 50.9°F | cold |
| Sea water temperature in West Yarmouth in December | ||||
Chart monthly average water temperature in West Yarmouth
