World Resorts Croatia Opatija Weather

Opatija Sea Temperature in August

Average sea water temperature in August:
+76.1°F
Minimum sea water temperature in August: 81.3°F
Maximum sea water temperature in August: 70.9°F

Daily 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.

Monthly sea water temperature in Opatija, °F

Which Croatia resorts have warmest sea in August?

Place name August 2025 August 2024
Porec 78.1°F 82.2°F
Rovinj 78.0°F 81.9°F
Vrsar 78.0°F 81.9°F
Novigrad 78.0°F 82.3°F
Umag 77.8°F 82.3°F
Plat 77.1°F 78.5°F
Mlini 77.1°F 78.5°F
Cavtat 77.1°F 78.3°F
Pula 77.0°F 81.2°F
Komiza 76.8°F 80.3°F
Lastovo 76.6°F 79.6°F
Istria 76.5°F 80.5°F
Dubrovnik 76.5°F 78.3°F
Tucepi 76.4°F 80.2°F
Makarska 76.4°F 80.2°F
Dugi Otok 76.4°F 79.6°F
Klek 76.3°F 79.9°F
Hvar 76.2°F 78.7°F
Trogir 76.1°F 79.2°F
Stari Grad 76.1°F 79.0°F

Best time for vacation in Opatija

Sunniest months:
August 23 days
July 21 days
June 19 days
Warmest months:
August 79.9 °F
July 79.7 °F
June 75.7 °F
Warmest sea temp:
August 76.0 °F
July 75.8 °F
September 71.3 °F
Coldest months:
January 42.3 °F
February 44.2 °F
December 45.0 °F
Rainiest months:
May 7 days
November 6 days
July 6 days
Windiest months:
February 8.3 mph
March 7.9 mph
November 7.8 mph

Opatija on a weather map

Opatija
+88°F
NE 3 mph
Feels like: +88°F
Precip.: 1%
Places in Croatia:
Name
°F
+82°F
+82°F
+86°F
+99°F
+84°F
+97°F
+93°F
+86°F
+88°F
+86°F
+86°F
+88°F
+86°F
+93°F
+86°F
24 Hours Forecast
Opatija
Local time: 12:09
August 05, wednesday
1500
84°F
NE
3 mph
1800
75°F
S
3 mph
2100
73°F
S
4 mph
August 06, thursday
0000
72°F
S
4 mph
0300
72°F
S
4 mph
0600
72°F
SW
4 mph
0900
86°F
SW
2 mph
1200
93°F
NE
2 mph

Best place for vacation:

Units of measurement: °C / °F