New Haven water temp
This data the coastal New Haven 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 New Haven
Water temperature in New Haven today is 69.3°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near New Haven was recorded in 2016 and was 72.3°F, and the coldest was recorded in 2020 at 66.4°F. Sea water temperature in New Haven is expected to drop to 67.6°F in the next 10 days. September average water temperature in New Haven is 71.4°F, the minimum temperature is 66.2°F, and the maximum is 77.5°F.
The swimming season in New Haven lasts from July to September. During those months, New Haven water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in New Haven in winter reaches 40.6°F, in spring 45.7°F, in summer the average temperature rises to 70.2°F, and in autumn it is 63.7°F.
New Haven water temperature now
| September 25, 2025 |
|---|
| today temp |
| 69.3°F |
| September 24, 2025 |
|---|
| yesterday temp |
| 69.3°F |
The ocean salinity in New Haven is 27.31‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in New 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 New 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 New Haven. Data in table shown for September 25, 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' 9" | 0' 10" | 0' 11" | 1' 1" |
| 0.22 m | 0.26 m | 0.27 m | 0.33 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 1' 3" | 1' 3" | 1' 3" | 1' 5" |
| 0.37 m | 0.38 m | 0.38 m | 0.43 m |
Surf report in New Haven
New Haven weather forecast
Current temperature and weather
Data in a table show New Haven temperature today (September 25, 2025). For more information and forecast for a few days, go to the weather forecast New Haven.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | | |
| 66.9°F | 66.6°F | 67.6°F | 69.8°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | | |
| 72.7°F | 72.3°F | 71.6°F | 71.1°F |
You may also be interested in other sections of our site for New Haven: Sunrise and Sunset, Tides
New Haven water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in New 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 New 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 | 39.6°F | 34.3°F | 47.8°F | cold |
| Ocean water temperature in New Haven in January | ||||
| February | 36.3°F | 30.6°F | 42.8°F | cold |
| Ocean water temperature in New Haven in February | ||||
| March | 38.5°F | 32°F | 48.4°F | cold |
| Ocean water temperature in New Haven in March | ||||
| April | 44.8°F | 35.6°F | 53.1°F | cold |
| Ocean water temperature in New Haven in April | ||||
| May | 54°F | 44.6°F | 65.1°F | cold |
| Ocean water temperature in New Haven in May | ||||
| June | 64°F | 55.8°F | 73°F | cold |
| Ocean water temperature in New Haven in June | ||||
| July | 72.5°F | 65.3°F | 78.3°F | warm |
| Ocean water temperature in New Haven in July | ||||
| August | 74.1°F | 69.3°F | 78.6°F | warm |
| Ocean water temperature in New Haven in August | ||||
| September | 71.4°F | 66.2°F | 77.5°F | warm |
| Ocean water temperature in New Haven in September | ||||
| October | 64.6°F | 57.7°F | 70.9°F | cold |
| Ocean water temperature in New Haven in October | ||||
| November | 55.2°F | 46.9°F | 63.5°F | cold |
| Ocean water temperature in New Haven in November | ||||
| December | 46°F | 39.7°F | 52.3°F | cold |
| Ocean water temperature in New Haven in December | ||||
Chart monthly average water temperature in New Haven
