Can you swim at Nissi Beach in December? — 20.0°C water
Yes — comfortable for most swimmers
Average sea · December
20.0°C
Live water now
…
Recommended wetsuit
Shorty 2mm
warm
Yes. With a 20.0°C average in December, most swimmers find Nissi 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 Nissi Beach live page for full conditions.
Best months to swim
June · July · August · September · October · November
Frequently asked questions
What is the average sea temperature at Nissi Beach in December?
Nissi Beach averages 20.0°C in December, based on long-run climatology for the Mediterranean Sea.
Is the sea warm enough to swim at Nissi Beach in December?
Yes, most swimmers find 20.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Nissi Beach in December?
Most swimmers don't need a wetsuit; a rash vest helps for longer sessions.
