21.07
tue
tue
Day
77°F
SW 4 mph
Precip.
36%
36%
Night
61°F
SW 11 mph
Precip.
19%
19%
22.07
wed
wed
Day
75°F
W 12 mph
Precip.
1%
1%
Night
59°F
SW 6 mph
Precip.
4%
4%
23.07
thu
thu
Day
77°F
NE 3 mph
Precip.
2%
2%
Night
54°F
SW 9 mph
Precip.
11%
11%
24.07
fri
fri
Day
75°F
SW 8 mph
Precip.
1%
1%
Night
59°F
SW 4 mph
Precip.
5%
5%
25.07
sat
sat
Day
75°F
NE 5 mph
Precip.
1%
1%
Night
59°F
SW 2 mph
Precip.
6%
6%
26.07
sun
sun
Day
72°F
N 11 mph
Precip.
60%
60%
Night
66°F
N 5 mph
Precip.
79%
79%
27.07
mon
mon
Day
68°F
SW 6 mph
Precip.
16%
16%
Night
59°F
SW 6 mph
Precip.
7%
7%
28.07
tue
tue
Day
79°F
NE 3 mph
Precip.
2%
2%
Night
63°F
S 4 mph
Precip.
7%
7%
29.07
wed
wed
Day
82°F
W 2 mph
Precip.
1%
1%
Night
66°F
SW 6 mph
Precip.
5%
5%
30.07
thu
thu
Day
82°F
SW 6 mph
Precip.
1%
1%
Night
66°F
SW 7 mph
Precip.
3%
3%
31.07
fri
fri
Day
84°F
SW 6 mph
Precip.
1%
1%
Night
66°F
SW 7 mph
Precip.
3%
3%
01.08
sat
sat
Day
86°F
NE 2 mph
Precip.
1%
1%
Night
70°F
S 5 mph
Precip.
4%
4%
02.08
sun
sun
Day
90°F
NE 2 mph
Precip.
1%
1%
Night
73°F
S 5 mph
Precip.
4%
4%
03.08
mon
mon
Day
91°F
NE 3 mph
Precip.
1%
1%
Night
75°F
S 2 mph
Precip.
4%
4%
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 77.0°F. The highest and lowest sea temperatures during the month were 79.9°F and 75.0°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.7°F. The highest and lowest sea temperatures during the month were 77.0°F and 71.8°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: 08:54
July 21, tuesday
0900
72°F
SW
6 mph
6 mph
1200
77°F
SW
4 mph
4 mph
1500
79°F
W
3 mph
3 mph
1800
79°F
SW
9 mph
9 mph
2100
63°F
SW
8 mph
8 mph
July 22, wednesday
0000
61°F
SW
11 mph
11 mph
0300
64°F
SW
12 mph
12 mph
0600
61°F
SW
11 mph
11 mph
