Monterey Bay water temp
This data the coastal Monterey 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 Monterey Bay
Water temperature in Monterey Bay today is 62.8°F. Based on our historical data over a period of ten years, the warmest water in this day in Monterey Bay was recorded in 2015 and was 62.2°F, and the coldest was recorded in 2016 at 56.3°F. Sea water temperature in Monterey Bay is expected to drop to 58.3°F in the next 10 days. October average water temperature in Monterey Bay is 58.3°F, the minimum temperature is 54.3°F, and the maximum is 63.5°F.
Throughout the year, the water temperature in Monterey Bay does not rise above 68°F and therefore is not suitable for comfortable swimming. The average water temperature in Monterey Bay in winter reaches 54.7°F, in spring 54.3°F, in summer the average temperature rises to 57.6°F, and in autumn it is 58.1°F.
Monterey Bay water temperature now
| October 1, 2025 |
|---|
| today temp |
| 62.8°F |
| September 30, 2025 |
|---|
| yesterday temp |
| 62.4°F |
The ocean salinity in Monterey Bay is 33.55‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Monterey 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 Monterey 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 Monterey Bay. Data in table shown for October 1, 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" | 4' 8" | 4' 4" | 4' 3" |
| 1.52 m | 1.41 m | 1.32 m | 1.29 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 4' 7" | 5' 2" | 5' 10" | 6' 6" |
| 1.39 m | 1.58 m | 1.77 m | 1.97 m |
Surf report in Monterey Bay
Monterey Bay weather forecast
Current temperature and weather
Data in a table show Monterey Bay temperature today (October 1, 2025). For more information and forecast for a few days, go to the weather forecast Monterey Bay.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | |  |
| 59.4°F | 58.5°F | 58.5°F | 63.9°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
|  | | |
| 65.8°F | 68.5°F | 65.1°F | 64.4°F |
You may also be interested in other sections of our site for Monterey Bay: Sunrise and Sunset, Tides
Monterey Bay water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Monterey 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 Monterey 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 | 54.5°F | 50.7°F | 58.6°F | cold |
| Ocean water temperature in Monterey Bay in January | ||||
| February | 54.5°F | 51.1°F | 59°F | cold |
| Ocean water temperature in Monterey Bay in February | ||||
| March | 54.5°F | 50.2°F | 59°F | cold |
| Ocean water temperature in Monterey Bay in March | ||||
| April | 54.1°F | 49.6°F | 59°F | cold |
| Ocean water temperature in Monterey Bay in April | ||||
| May | 54.3°F | 49.1°F | 60.8°F | cold |
| Ocean water temperature in Monterey Bay in May | ||||
| June | 55.9°F | 50.9°F | 61.2°F | cold |
| Ocean water temperature in Monterey Bay in June | ||||
| July | 57.7°F | 52.5°F | 64°F | cold |
| Ocean water temperature in Monterey Bay in July | ||||
| August | 58.8°F | 53.1°F | 64.9°F | cold |
| Ocean water temperature in Monterey Bay in August | ||||
| September | 59.5°F | 55°F | 64.4°F | cold |
| Ocean water temperature in Monterey Bay in September | ||||
| October | 58.3°F | 54.3°F | 63.5°F | cold |
| Ocean water temperature in Monterey Bay in October | ||||
| November | 56.5°F | 52.3°F | 61.5°F | cold |
| Ocean water temperature in Monterey Bay in November | ||||
| December | 55.2°F | 51.3°F | 60.8°F | cold |
| Ocean water temperature in Monterey Bay in December | ||||
Chart monthly average water temperature in Monterey Bay
