December is a popular month to ask about Blue Lagoon because conditions can shift week to week along this coast. Expect the water near 17.0°C, with daily variation from wind, tides and recent storms. We refresh the live value from Open-Meteo Marine every hour, so the headline above always reflects the current state of the Mediterranean Sea.
Blue Lagoon sea temperature in December — averages 17.0°C
The sea at Blue Lagoon in Malta averages 17.0°C during December, based on long-run climatology for the Mediterranean Sea. Use the live reading below for today's actual water and the monthly grid to compare with the rest of the year.
Average sea · December
17.0°C
mild · Fair
Live water now
…
Recommended wetsuit
3/2mm fullsuit
At 17.0°C a 3/2mm fullsuit is the standard wetsuit for surfing and watersports.
Monthly comparison
Yes, but expect a fresh dip · Blue Lagoon
Can you swim at Blue Lagoon in June? — 23.0°C water23.0°CCan you swim at Blue Lagoon in July? — 26.0°C water26.0°CCan you swim at Blue Lagoon in August? — 27.0°C water27.0°CCan you swim at Blue Lagoon in September? — 26.0°C water26.0°CCan you swim at Blue Lagoon in October? — 23.0°C water23.0°CCan you swim at Blue Lagoon in November? — 20.0°C water20.0°C
Frequently asked questions
What is the average sea temperature at Blue Lagoon in December?
Blue Lagoon averages 17.0°C in December, based on long-run climatology for the Mediterranean Sea.
Is the sea warm enough to swim at Blue Lagoon in December?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Blue Lagoon in December?
A 2 mm shorty is comfortable for sessions over 30 minutes.