26.04
sun
sun
Day
70°F
N 2 mph
Precip.
0%
0%
Night
48°F
SW 9 mph
Precip.
0%
0%
27.04
mon
mon
Day
68°F
N 1 mph
Precip.
0%
0%
Night
50°F
SW 6 mph
Precip.
0%
0%
28.04
tue
tue
Day
66°F
NE 4 mph
Precip.
72%
72%
Night
50°F
SW 6 mph
Precip.
0%
0%
29.04
wed
wed
Day
54°F
SW 7 mph
Precip.
100%
100%
Night
48°F
SW 11 mph
Precip.
0%
0%
30.04
thu
thu
Day
57°F
W 11 mph
Precip.
0%
0%
Night
41°F
SW 8 mph
Precip.
0%
0%
01.05
fri
fri
Day
59°F
W 9 mph
Precip.
0%
0%
Night
43°F
SW 6 mph
Precip.
0%
0%
02.05
sat
sat
Day
61°F
NE 4 mph
Precip.
0%
0%
Night
45°F
S 2 mph
Precip.
0%
0%
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 56.3°F. The highest and lowest sea temperatures during the month were 58.6°F and 53.2°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 62.3°F. The highest and lowest sea temperatures during the month were 63.7°F and 60.6°F.
Air temperature in Opatija, °F
Precipitation total in Opatija, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Opatija
Opatija on a weather map
Places in Croatia:
Name
°F
24 Hours Forecast
Opatija
Local time: 21:38
April 27, monday
0000
48°F
SW
9 mph
9 mph
0300
46°F
SW
8 mph
8 mph
0600
46°F
SW
7 mph
7 mph
0900
59°F
SW
6 mph
6 mph
1200
68°F
N
1 mph
1 mph
1500
68°F
N
4 mph
4 mph
1800
63°F
NW
0 mph
0 mph
2100
52°F
SW
4 mph
4 mph
