It depends. Piha Beach sits around 16.0°C in May; confident swimmers will be fine, casual bathers may prefer short sessions.
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 Piha Beach live page for full conditions.
Frequently asked questions
What is the average sea temperature at Piha Beach in May?
Piha Beach averages 16.0°C in May, based on long-run climatology for the Tasman Sea.
Is the sea warm enough to swim at Piha Beach in May?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Piha Beach in May?
A 2 mm shorty is comfortable for sessions over 30 minutes.
