Can you swim at San Onofre State Beach in January? — 15.0°C water
Cool — short dips or a shorty wetsuit
Average sea · January
15.0°C
Live water now
…
Recommended wetsuit
4/3mm fullsuit
mild
Cool. 15.0°C in January means short dips for most people. A 2 mm shorty or 3/2 mm wetsuit transforms the experience.
Monthly averages set expectations, but the specific beach today depends on wind, swell and recent weather. Check the live value at the top of this page or open the San Onofre State Beach live page for full conditions.
Best months to swim
August
Frequently asked questions
What is the average sea temperature at San Onofre State Beach in January?
San Onofre State Beach averages 15.0°C in January, based on long-run climatology for the Pacific Ocean.
Is the sea warm enough to swim at San Onofre State Beach in January?
Not without thermal protection — a wetsuit is recommended at 15.0°C.
Do I need a wetsuit at San Onofre State Beach in January?
