Can you swim at Ondarreta in August? — 26.0°C water
Yes — ideal swimming weather
Average sea · August
26.0°C
Live water now
…
Recommended wetsuit
No wetsuit
hot
Yes. Ondarreta averages 26.0°C in August — bath-warm by European standards and comfortable for all-day swimming, snorkelling and families.
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 Ondarreta live page for full conditions.
Best months to swim
June · July · August · September
Frequently asked questions
What is the average sea temperature at Ondarreta in August?
Ondarreta averages 26.0°C in August, based on long-run climatology for the Bay of Biscay.
Is the sea warm enough to swim at Ondarreta in August?
Yes, most swimmers find 26.0°C comfortable for unrestricted swimming.
