Turtle Bay (HI) water temp
This data the coastal Turtle Bay 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 Turtle Bay
Water temperature in Turtle Bay today is 80.4°F. Based on our historical data over a period of ten years, the warmest water in this day in Turtle Bay was recorded in 2014 and was 81.7°F, and the coldest was recorded in 2012 at 77.9°F. Sea water temperature in Turtle Bay is expected to drop to 79.9°F in the next 10 days. September average water temperature in Turtle Bay is 80.1°F, the minimum temperature is 77.4°F, and the maximum is 83.1°F.
The swimming season in Turtle Bay lasts from January to December, twelve months per year! During those months, Turtle Bay water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Turtle Bay in winter reaches 76.1°F, in spring 75.9°F, in summer the average temperature rises to 78.6°F, and in autumn it is 79.5°F.
Turtle Bay water temperature now
| September 17, 2025 |
|---|
| today temp |
| 80.4°F |
| September 16, 2025 |
|---|
| yesterday temp |
| 80.4°F |
The ocean salinity in Turtle Bay is 34.90‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Turtle Bay 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 Turtle Bay. 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 Turtle Bay. Data in table shown for September 17, 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 |
|---|---|---|---|
| 4' 2" | 4' 4" | 4' 4" | 4' 2" |
| 1.28 m | 1.31 m | 1.31 m | 1.27 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 4' 1" | 4' 2" | 4' 3" | 4' 3" |
| 1.25 m | 1.28 m | 1.3 m | 1.29 m |
Surf report in Turtle Bay
Turtle Bay weather forecast
Current temperature and weather
Data in a table show Turtle Bay temperature today (September 17, 2025). For more information and forecast for a few days, go to the weather forecast Turtle Bay.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | |  | |
| 75.9°F | 75.7°F | 76.1°F | 77.9°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 | | |  |
| 79.5°F | 78.1°F | 77.4°F | 75.7°F |
You may also be interested in other sections of our site for Turtle Bay: Sunrise and Sunset, Tides
Turtle Bay water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Turtle Bay. 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 Turtle Bay 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 | 75.9°F | 73.4°F | 78.1°F | warm |
| Ocean water temperature in Turtle Bay in January | ||||
| February | 75.2°F | 71.6°F | 77.5°F | warm |
| Ocean water temperature in Turtle Bay in February | ||||
| March | 75.2°F | 71.2°F | 77.7°F | warm |
| Ocean water temperature in Turtle Bay in March | ||||
| April | 75.7°F | 73.2°F | 78.8°F | warm |
| Ocean water temperature in Turtle Bay in April | ||||
| May | 76.8°F | 74.3°F | 78.8°F | warm |
| Ocean water temperature in Turtle Bay in May | ||||
| June | 77.9°F | 75.4°F | 79.5°F | hot |
| Ocean water temperature in Turtle Bay in June | ||||
| July | 78.6°F | 75.9°F | 80.4°F | hot |
| Ocean water temperature in Turtle Bay in July | ||||
| August | 79.5°F | 77.4°F | 82.8°F | hot |
| Ocean water temperature in Turtle Bay in August | ||||
| September | 80.1°F | 77.4°F | 83.1°F | hot |
| Ocean water temperature in Turtle Bay in September | ||||
| October | 79.7°F | 77.7°F | 82.6°F | hot |
| Ocean water temperature in Turtle Bay in October | ||||
| November | 78.6°F | 76.1°F | 81.5°F | hot |
| Ocean water temperature in Turtle Bay in November | ||||
| December | 77°F | 74.5°F | 79.3°F | hot |
| Ocean water temperature in Turtle Bay in December | ||||
Chart monthly average water temperature in Turtle Bay
