Westerly water temp
This data the coastal Westerly ocean 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 ocean temperature in Westerly
Water temperature in Westerly today is 67.6°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Westerly was recorded in 2021 and was 70.9°F, and the coldest was recorded in 2013 at 64.6°F. Sea water temperature in Westerly is expected to drop to 66.4°F in the next 10 days. September average water temperature in Westerly is 67.6°F, the minimum temperature is 63.9°F, and the maximum is 72.3°F.
The swimming season in Westerly lasts from July to September. During those months, Westerly water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Westerly in winter reaches 43.7°F, in spring 45.1°F, in summer the average temperature rises to 65.8°F, and in autumn it is 62.2°F.
Westerly water temperature now
| September 18, 2025 |
|---|
| today temp |
| 67.6°F |
| September 17, 2025 |
|---|
| yesterday temp |
| 67.6°F |
The ocean salinity in Westerly is 29.37‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Westerly 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 Westerly. 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 Westerly. Data in table shown for September 18, 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 |
|---|---|---|---|
| 3' 10" | 3' 6" | 3' 1" | 2' 9" |
| 1.16 m | 1.06 m | 0.93 m | 0.83 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 2' 6" | 2' 3" | 2' 1" | 2' 0" |
| 0.75 m | 0.69 m | 0.64 m | 0.6 m |
Surf report in Westerly
Westerly weather forecast
Current temperature and weather
Data in a table show Westerly temperature today (September 18, 2025). For more information and forecast for a few days, go to the weather forecast Westerly.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | | |
| 65.3°F | 64.9°F | 64.8°F | 66.2°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 |  | |  |
| 70.3°F | 74.7°F | 74.3°F | 70.2°F |
You may also be interested in other sections of our site for Westerly: Sunrise and Sunset, Tides
Westerly water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Westerly. 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 Westerly 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 | 42.8°F | 37.6°F | 49.6°F | cold |
| Ocean water temperature in Westerly in January | ||||
| February | 39.7°F | 32.9°F | 45°F | cold |
| Ocean water temperature in Westerly in February | ||||
| March | 40.3°F | 33.4°F | 50.4°F | cold |
| Ocean water temperature in Westerly in March | ||||
| April | 44.1°F | 36.5°F | 51.4°F | cold |
| Ocean water temperature in Westerly in April | ||||
| May | 51.3°F | 44.4°F | 62.8°F | cold |
| Ocean water temperature in Westerly in May | ||||
| June | 60.1°F | 53.2°F | 69.1°F | cold |
| Ocean water temperature in Westerly in June | ||||
| July | 67.6°F | 61.3°F | 73.6°F | cold |
| Ocean water temperature in Westerly in July | ||||
| August | 69.6°F | 65.7°F | 73.4°F | warm |
| Ocean water temperature in Westerly in August | ||||
| September | 67.6°F | 63.9°F | 72.3°F | cold |
| Ocean water temperature in Westerly in September | ||||
| October | 63°F | 55.9°F | 68.4°F | cold |
| Ocean water temperature in Westerly in October | ||||
| November | 56.1°F | 49.8°F | 62.4°F | cold |
| Ocean water temperature in Westerly in November | ||||
| December | 48.7°F | 42.1°F | 54.5°F | cold |
| Ocean water temperature in Westerly in December | ||||
Chart monthly average water temperature in Westerly
