May is a popular month to ask about Lido Beach Opatija because conditions can shift week to week along this coast. Expect the water near 19,0°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 Adriatic Sea.
Lido Beach Opatija sea temperature in May — averages 19,0°C
The sea at Lido Beach Opatija in Croatia averages 19,0°C during May, based on long-run climatology for the Adriatic 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 · May
19,0°C
mild · Good
Live water now
…
Recommended wetsuit
Shorty 2mm
At 19.0°C a 2mm shorty keeps surfers warm; lap swimmers can usually skip the neoprene.
Monthly comparison
Yes, but expect a fresh dip · Lido Beach Opatija
Can you swim at Lido Beach Opatija in July? — 25,0°C water25,0°CCan you swim at Lido Beach Opatija in August? — 26,0°C water26,0°CCan you swim at Lido Beach Opatija in September? — 23,0°C water23,0°CCan you swim at Lido Beach Opatija in October? — 20,0°C water20,0°CCan you swim at Lido Beach Opatija in November? — 17,0°C water17,0°CCan you swim at Lido Beach Opatija in December? — 14,0°C water14,0°C
Frequently asked questions
What is the average sea temperature at Lido Beach Opatija in May?
Lido Beach Opatija averages 19,0°C in May, based on long-run climatology for the Adriatic Sea.
Is the sea warm enough to swim at Lido Beach Opatija in May?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Lido Beach Opatija in May?
A 2 mm shorty is comfortable for sessions over 30 minutes.