Mendocino water temp
This data the coastal Mendocino 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 Mendocino
Water temperature in Mendocino today is 57.9°F. Based on our historical data over a period of ten years, the warmest water in this day in Mendocino was recorded in 2017 and was 58.6°F, and the coldest was recorded in 2011 at 52.7°F. Sea water temperature in Mendocino is expected to drop to 55.8°F in the next 10 days. September average water temperature in Mendocino is 55.6°F, the minimum temperature is 50.5°F, and the maximum is 62.6°F.
Throughout the year, the water temperature in Mendocino does not rise above 68°F and therefore is not suitable for comfortable swimming. The average water temperature in Mendocino in winter reaches 52.7°F, in spring 50.7°F, in summer the average temperature rises to 52.7°F, and in autumn it is 54.9°F.
Mendocino water temperature now
| September 5, 2025 |
|---|
| today temp |
| 57.9°F |
| September 4, 2025 |
|---|
| yesterday temp |
| 58.5°F |
The ocean salinity in Mendocino is 34.01‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Mendocino 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 Mendocino. 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 Mendocino. Data in table shown for September 6, 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' 3" | 4' 1" | 4' 0" | 3' 11" |
| 1.29 m | 1.25 m | 1.22 m | 1.19 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 3' 9" | 3' 8" | 3' 7" | 3' 6" |
| 1.15 m | 1.11 m | 1.08 m | 1.06 m |
Surf report in Mendocino
Mendocino weather forecast
Current temperature and weather
Data in a table show Mendocino temperature today (September 6, 2025). For more information and forecast for a few days, go to the weather forecast Mendocino.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | | |
| 58.3°F | 59.4°F | 59.7°F | 58.1°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 | |  | |
| 58.6°F | 59.2°F | 58.8°F | 57.9°F |
You may also be interested in other sections of our site for Mendocino: Sunrise and Sunset, Tides
Mendocino water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Mendocino. 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 Mendocino 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 | 52.7°F | 48.9°F | 57.4°F | cold |
| Ocean water temperature in Mendocino in January | ||||
| February | 52°F | 47.5°F | 56.8°F | cold |
| Ocean water temperature in Mendocino in February | ||||
| March | 51.4°F | 47.3°F | 56.1°F | cold |
| Ocean water temperature in Mendocino in March | ||||
| April | 50.5°F | 46.6°F | 55°F | cold |
| Ocean water temperature in Mendocino in April | ||||
| May | 50.2°F | 45.1°F | 55.6°F | cold |
| Ocean water temperature in Mendocino in May | ||||
| June | 51.1°F | 45.5°F | 56.7°F | cold |
| Ocean water temperature in Mendocino in June | ||||
| July | 52.5°F | 47.8°F | 59.2°F | cold |
| Ocean water temperature in Mendocino in July | ||||
| August | 54.5°F | 49.1°F | 61.5°F | cold |
| Ocean water temperature in Mendocino in August | ||||
| September | 55.6°F | 50.5°F | 62.6°F | cold |
| Ocean water temperature in Mendocino in September | ||||
| October | 54.7°F | 48.9°F | 61.5°F | cold |
| Ocean water temperature in Mendocino in October | ||||
| November | 54.5°F | 49.8°F | 60.4°F | cold |
| Ocean water temperature in Mendocino in November | ||||
| December | 53.4°F | 49.6°F | 60.1°F | cold |
| Ocean water temperature in Mendocino in December | ||||
Chart monthly average water temperature in Mendocino
