Opatija weather in May 2025

Expect 64°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Opatija in May. Check more long-term weather averages for Opatija in May before you book your next holiday to Croatia in 2025/2026.

  • 64°F maximum daytime temperature in May in Opatija64
    64°F max day temperature
  • 8 hours of sunshine per day
  • 16 days with some rainfall in May in Opatija16
    16 days with some rainfall
  • 46°F minimum night-time temperature in May in Opatija46
    46°F min night temperature
  • 15 hours of daylight per day in May in Opatija15
    15 hours of daylight per day
  • No heat & humidity in May in Opatija0
    No heat & humidity
  • 4.3 inches monthly rainfall in May in Opatija4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 7 (High) in May in Opatija7
    7 (High) UV index
  • 63°F sea temperature in May in Opatija63
    63°F sea temperature

More about Opatija

Opatija by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Croatia

  • Book online & save up to 5% on Marella Cruises
  • Discount varies by season. Book online with TUI
  • Destinations across the Med, Caribbean & USA

Marella CruisesCruise deal finder

The May weather guide for Croatia (Opatija) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

More about Croatia

How hot is it in Opatija in May?

Daytime temperatures usually reach 64°F in Opatija in May, falling to 46°F at night.

How sunny is it in Opatija in May?

There are normally 8 hours of bright sunshine each day in Opatija in May - that's 50% of daylight hours.

How warm is the sea around Opatija in May?

The average sea temperature around Opatija in May is 63°F.

Does it rain in Opatija in May?

There are usually 16 days with some rain in Opatija in May and the average monthly rainfall is 4.3 inches.

Opatija May sunrise & sunset times

Browse the sunrise and sunset times for Opatija in May 2025. Select a month to view Opatija sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:51 19:09
Friday, 16th May 2025 04:32 19:28
Saturday, 31st May 2025 04:19 19:43

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^