Average sea water temperature in May:
+62.4°F
| Minimum sea water temperature in May: | 71.4°F |
| Maximum sea water temperature in May: | 56.3°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 61.0°F. The highest and lowest sea temperatures during the month were 63.9°F and 58.6°F.
Monthly sea water temperature in Opatija, °F
Which Croatia resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Plat | 64.2°F | 66.2°F |
| Cavtat | 64.2°F | 66.2°F |
| Mlini | 64.2°F | 66.2°F |
| Dubrovnik | 64.0°F | 66.1°F |
| Novigrad | 63.7°F | 65.6°F |
| Porec | 63.6°F | 65.4°F |
| Umag | 63.6°F | 65.6°F |
| Vrsar | 63.4°F | 65.0°F |
| Rovinj | 63.4°F | 64.8°F |
| Lastovo | 63.4°F | 65.7°F |
| Komiza | 63.1°F | 65.5°F |
| Klek | 62.9°F | 65.5°F |
| Sibenik | 62.8°F | 64.9°F |
| Skradin | 62.8°F | 64.9°F |
| Korcula | 62.7°F | 65.2°F |
| Split | 62.5°F | 65.5°F |
| Hvar | 62.5°F | 65.4°F |
| Trogir | 62.5°F | 65.4°F |
| Istria | 62.5°F | 64.2°F |
| Vodice | 62.5°F | 64.7°F |
Best time for vacation in Opatija
Opatija on a weather map
Places in Croatia:
Name
°F
24 Hours Forecast
Opatija
Local time: 12:30
May 24, sunday
1500
79°F
SW
9 mph
9 mph
1800
75°F
W
6 mph
6 mph
2100
63°F
S
6 mph
6 mph
May 25, monday
0000
59°F
SW
6 mph
6 mph
0300
59°F
S
6 mph
6 mph
0600
59°F
S
6 mph
6 mph
0900
73°F
SW
4 mph
4 mph
1200
79°F
SW
5 mph
5 mph
