Yes. With a 23.0°C average in May, most swimmers find Muir Beach comfortable after the first 10–20 seconds of acclimatisation.
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 Muir Beach live page for full conditions.
Best months to swim
May · June · July · August · September · October · November
Frequently asked questions
What is the average sea temperature at Muir Beach in May?
Muir Beach averages 23.0°C in May, based on long-run climatology for the Pacific Ocean.
Is the sea warm enough to swim at Muir Beach in May?
Yes, most swimmers find 23.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Muir Beach in May?
Most swimmers don't need a wetsuit; a rash vest helps for longer sessions.
