World Resorts Slovenia Portoroz Weather

Portoroz Sea Temperature in June

Average sea water temperature in June:
+73.5°F
Minimum sea water temperature in June: 81.9°F
Maximum sea water temperature in June: 63.9°F

Daily sea water temperature in June, °F

Show year:
2025
2024
2023

The average sea water temperature in June of 2025 was 75.5°F. The highest and lowest sea temperatures during the month were 81.5°F and 71.2°F.

Monthly sea water temperature in Portoroz, °F

Which Slovenia resorts have warmest sea in June?

Place name June 2025 June 2024
Portoroz 75.5°F 73.7°F
Piran 75.5°F 73.7°F
Strunjan 75.4°F 73.5°F
Koper 75.4°F 73.1°F
Isola 75.3°F 73.3°F
Cerkno 72.9°F 71.1°F
Bohinjsko Jezero 72.7°F 71.0°F
Dolenjske Toplice 71.1°F 71.7°F

Best time for vacation in Portoroz

Sunniest months:
August 23 days
July 22 days
June 20 days
Warmest months:
August 85.0 °F
July 84.9 °F
June 80.3 °F
Warmest sea temp:
August 78.7 °F
July 78.4 °F
September 74.2 °F
Coldest months:
January 45.6 °F
December 47.7 °F
February 48.3 °F
Rainiest months:
May 7 days
November 6 days
September 6 days
Windiest months:
February 6.5 mph
March 6.4 mph
November 6.1 mph

Portoroz on a weather map

Portoroz
+48°F
N 2 mph
Feels like: +50°F
Precip.: 100%
Places in Slovenia:
Name
°F
+45°F
+48°F
+48°F
+41°F
+46°F
+43°F
+48°F
+48°F
+48°F
+43°F
+50°F
24 Hours Forecast
Portoroz
Local time: 09:13
December 18, thursday
1200
54°F
N
2 mph
1500
54°F
E
2 mph
1800
52°F
N
2 mph
2100
46°F
N
1 mph
December 19, friday
0000
46°F
NE
2 mph
0300
46°F
N
2 mph
0600
46°F
N
2 mph
0900
46°F
NE
1 mph
Units of measurement: °C / °F