Water temperature in Altata
This data the coastal Altata 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 Altata
Water temperature in Altata today is 89.1°F. Based on our historical data over a period of ten years, the warmest water in this day in Altata was recorded in 2023 and was 90.7°F, and the coldest was recorded in 2010 at 86.2°F. Sea water temperature in Altata is expected to drop to 87.1°F in the next 10 days. September average water temperature in Altata is 87.4°F, the minimum temperature is 84.7°F, and the maximum is 91.8°F.
The swimming season in Altata lasts from January to December, twelve months per year! During those months, Altata water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Altata in winter reaches 70.2°F, in spring 73.8°F, in summer the average temperature rises to 86°F, and in autumn it is 83.8°F.
Altata water temperature now
| September 26, 2025 |
|---|
| today temp |
| 89.1°F |
| September 25, 2025 |
|---|
| yesterday temp |
| 89.2°F |
The ocean salinity in Altata is 34.53‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Altata 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 Altata. 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 Altata. Data in table shown for September 27, 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 |
|---|---|---|---|
| 5' 0" | 5' 1" | 4' 11" | 4' 9" |
| 1.52 m | 1.54 m | 1.51 m | 1.46 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 4' 8" | 4' 6" | 4' 3" | 4' 1" |
| 1.41 m | 1.36 m | 1.3 m | 1.25 m |
Surf report in Altata
Altata weather forecast
Current temperature and weather
Data in a table show Altata temperature today (September 27, 2025). For more information and forecast for a few days, go to the weather forecast Altata.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 79°F | 77.9°F | 77.4°F | 78.4°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 | | | |
| 82.2°F | 83.7°F | 84°F | 80.8°F |
You may also be interested in other sections of our site for Altata: Sunrise and Sunset, Tides
Altata water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Altata. 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 Altata 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 | 69.3°F | 63.1°F | 75.2°F | warm |
| Ocean water temperature in Altata in January | ||||
| February | 68.7°F | 62.2°F | 75.6°F | warm |
| Ocean water temperature in Altata in February | ||||
| March | 69.4°F | 63°F | 76.8°F | warm |
| Ocean water temperature in Altata in March | ||||
| April | 73.2°F | 66.4°F | 79°F | warm |
| Ocean water temperature in Altata in April | ||||
| May | 78.6°F | 71.4°F | 84.7°F | hot |
| Ocean water temperature in Altata in May | ||||
| June | 83.7°F | 78.4°F | 87.8°F | hot |
| Ocean water temperature in Altata in June | ||||
| July | 86.7°F | 82.4°F | 90.7°F | hot |
| Ocean water temperature in Altata in July | ||||
| August | 87.8°F | 85.1°F | 90.5°F | hot |
| Ocean water temperature in Altata in August | ||||
| September | 87.4°F | 84.7°F | 91.8°F | hot |
| Ocean water temperature in Altata in September | ||||
| October | 85.3°F | 78.6°F | 90.5°F | hot |
| Ocean water temperature in Altata in October | ||||
| November | 78.8°F | 65.7°F | 85.1°F | hot |
| Ocean water temperature in Altata in November | ||||
| December | 72.5°F | 65.1°F | 79.9°F | warm |
| Ocean water temperature in Altata in December | ||||
Chart monthly average water temperature in Altata
