Can you swim at Lido Key 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 Lido Key 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 Lido Key live page for full conditions.
Best months to swim
April · May · June · July · August · September · October · November
Frequently asked questions
What is the average sea temperature at Lido Key in December?
Lido Key averages 20.0°C in December, based on long-run climatology for the Gulf of Mexico.
Is the sea warm enough to swim at Lido Key in December?
Yes, most swimmers find 20.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Lido Key in December?
Most swimmers don't need a wetsuit; a rash vest helps for longer sessions.
