Current sea water temperature:
+79.3°F
| Minimum sea water temperature in August: | 81.3°F |
| Maximum sea water temperature in August: | 70.9°F |
| Average sea water temperature in August: | 76.1°F |
| more information | |
14 days
forecast
forecast
| Opatija |
monthly
weather
weather
| Opatija |
Sea water temperature for the last 10 days:
| August 5 | 79.3°F | July 31 | 77.4°F |
| August 4 | 79.0°F | July 30 | 76.3°F |
| August 3 | 80.2°F | July 29 | 75.6°F |
| August 2 | 79.0°F | July 28 | 75.6°F |
| August 1 | 77.9°F | July 27 | 75.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Opatija?
Based on the data about daily sea water temperature for the last three years the warmest sea in Opatija was noticed in August, July and September.
Monthly Sea Temperatures in Opatija, °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.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 76.9°F. The highest and lowest sea temperatures during the month were 79.9°F and 75.0°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 72.4°F. The highest and lowest sea temperatures during the month were 73.6°F and 70.9°F.
current
weather
weather
| Opatija |
weather in
August
August
| Opatija |
Best time for vacation in Opatija
Opatija on a weather map
Places in Croatia:
Name
°F
24 Hours Forecast
Opatija
Local time: 10:35
August 05, wednesday
1200
88°F
NE
3 mph
3 mph
1500
86°F
NE
2 mph
2 mph
1800
77°F
SW
3 mph
3 mph
2100
72°F
S
5 mph
5 mph
August 06, thursday
0000
72°F
SW
3 mph
3 mph
0300
70°F
S
4 mph
4 mph
0600
72°F
SW
4 mph
4 mph
0900
86°F
SW
1 mph
1 mph
