World Resorts Slovenia Portoroz Weather

Portoroz Sea Temperature in April

Average sea water temperature in April:
+56.1°F
Minimum sea water temperature in April: 64.4°F
Maximum sea water temperature in April: 49.6°F

Daily sea water temperature in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 57.0°F. The highest and lowest sea temperatures during the month were 62.2°F and 52.7°F.

Monthly sea water temperature in Portoroz, °F

Which Slovenia resorts have warmest sea in April?

Place name April 2026 April 2025
Portoroz 57.0°F 56.5°F
Piran 57.0°F 56.5°F
Strunjan 56.8°F 56.3°F
Dolenjske Toplice 56.7°F 56.6°F
Isola 56.5°F 56.2°F
Bohinjsko Jezero 56.3°F 56.2°F
Koper 56.3°F 56.1°F
Cerkno 56.2°F 56.1°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 84.8 °F
June 80.4 °F
Warmest sea temp:
August 78.9 °F
July 78.5 °F
September 74.2 °F
Coldest months:
January 45.5 °F
December 48.0 °F
February 48.5 °F
Rainiest months:
May 7 days
November 6 days
September 6 days
Windiest months:
February 6.4 mph
March 6.3 mph
November 6.1 mph

Portoroz on a weather map

Current weather
05:39
Portoroz
+64°F
NW 4 mph
Feels like: +64°F
Precip.: 65%
Places in Slovenia:
Name
°F
Bled
+52°F
Bovec
+64°F
Bohinjsko Jezero
+52°F
Dolenjske Toplice
+63°F
Isola
+64°F
Koper
+64°F
Ljubljana
+61°F
Maribor
+61°F
Moravske Toplice
+63°F
Piran
+64°F
Portoroz
+64°F
Rogaska Slatina
+63°F
Strunjan
+64°F
Cerkno
+57°F
Smarjeske Toplice
+63°F
all places
24 Hours Forecast
Portoroz
Local time: 05:39
August 22, saturday
0600
64°F
NW
4 mph
0900
72°F
N
4 mph
1200
75°F
NE
2 mph
1500
77°F
SW
2 mph
1800
75°F
SW
6 mph
2100
66°F
SW
6 mph
August 23, sunday
0000
63°F
W
6 mph
0300
61°F
W
6 mph
Units of measurement: °C / °F