World Resorts Slovenia Portoroz Weather

Portoroz Sea Temperature in April

Average sea water temperature in April:
+56.0°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 56.6°F. The highest and lowest sea temperatures during the month were 60.3°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 56.6°F 56.5°F
Piran 56.6°F 56.5°F
Strunjan 56.3°F 56.3°F
Dolenjske Toplice 56.2°F 56.6°F
Isola 56.0°F 56.2°F
Bohinjsko Jezero 55.9°F 56.2°F
Cerkno 55.9°F 56.1°F
Koper 55.8°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 84.9 °F
June 80.3 °F
Warmest sea temp:
August 78.7 °F
July 78.4 °F
September 74.2 °F
Coldest months:
January 45.5 °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
04:16
Portoroz
+54°F
W 5 mph
Feels like: +52°F
Precip.: 0%
Places in Slovenia:
Name
°F
Bled
+45°F
Bohinjsko Jezero
+45°F
Dolenjske Toplice
+45°F
Isola
+54°F
Koper
+54°F
Kranjska Gora
+45°F
Ljubljana
+45°F
Maribor
+43°F
Moravske Toplice
+46°F
Piran
+54°F
Portoroz
+54°F
Postojna
+46°F
Rogaska Slatina
+45°F
Strunjan
+54°F
Cerkno
+45°F
all places
24 Hours Forecast
Portoroz
Local time: 04:16
April 28, tuesday
0600
52°F
W
5 mph
0900
64°F
SW
3 mph
1200
73°F
E
3 mph
1500
72°F
E
7 mph
1800
64°F
SE
2 mph
2100
55°F
W
4 mph
April 29, wednesday
0000
54°F
W
5 mph
0300
54°F
W
5 mph
Units of measurement: °C / °F