Monterey State Beach Water Temperature
Sea-surface temperature at Monterey State Beach, California · times in PDT
Updated 4:03 AM PDT
How it compares today
Water temperature through the year
Monthly normals computed from 2023–2025 daily sea-surface temperature history.
Nearby water right now
7-day outlook
| Day | Air high / low | Max UV | Rain |
|---|---|---|---|
| Fri, Aug 28 | 73° / 58° | 6 | 10% |
| Sat, Aug 29 | 67° / 56° | 7 | 2% |
| Sun, Aug 30 | 67° / 54° | 7 | 2% |
| Mon, Aug 31 | 69° / 52° | 7 | 1% |
| Tue, Sep 1 | 72° / 52° | 7 | 1% |
| Wed, Sep 2 | 73° / 53° | 7 | 2% |
| Thu, Sep 3 | 71° / 55° | 7 | 4% |
Sea-surface temperature and wave data from the Open-Meteo marine model; weather from Open-Meteo.
Is Monterey State Beach warm enough to swim?
At 57°F, the water at Monterey State Beach is cold — not recommended for swimming. Most swimmers are comfortable without a wetsuit above 72°F; below 62°F, cold-water shock becomes a real risk for unprotected swimmers.
That is 2° below the August average of 59°F here.
The water here never averages above 70°F — even in September, the warmest month, it sits around 61°F. Most people wear a wetsuit.
Frequently asked questions
How warm is the water at Monterey State Beach right now?
The sea-surface temperature is about 57°F. That is 2° below the August average of 59°F here.
When is the water warm enough to swim at Monterey State Beach?
The water here never averages above 70°F — even in September, the warmest month, it sits around 61°F. Most people wear a wetsuit.
What is the warmest the water gets at Monterey State Beach?
Around 61°F in September, based on 2023–2025 records. The coolest month is February at roughly 55°F.