28.04
tue
tue
Day
73°F
E 3 mph
Precip.
0%
0%
Night
54°F
W 5 mph
Precip.
0%
0%
29.04
wed
wed
Day
59°F
W 9 mph
Precip.
100%
100%
Night
50°F
W 21 mph
Precip.
0%
0%
30.04
thu
thu
Day
59°F
SW 14 mph
Precip.
0%
0%
Night
43°F
SW 7 mph
Precip.
0%
0%
01.05
fri
fri
Day
64°F
S 8 mph
Precip.
0%
0%
Night
48°F
W 4 mph
Precip.
0%
0%
02.05
sat
sat
Day
68°F
E 6 mph
Precip.
0%
0%
Night
50°F
W 4 mph
Precip.
0%
0%
03.05
sun
sun
Day
68°F
E 6 mph
Precip.
0%
0%
Night
52°F
W 4 mph
Precip.
0%
0%
04.05
mon
mon
Day
66°F
NE 3 mph
Precip.
0%
0%
Night
54°F
W 4 mph
Precip.
0%
0%
05.05
tue
tue
Day
68°F
NE 4 mph
Precip.
29%
29%
Night
54°F
W 3 mph
Precip.
0%
0%
06.05
wed
wed
Day
72°F
E 5 mph
Precip.
0%
0%
Night
55°F
SW 3 mph
Precip.
0%
0%
07.05
thu
thu
Day
75°F
E 2 mph
Precip.
0%
0%
Night
59°F
W 5 mph
Precip.
0%
0%
08.05
fri
fri
Day
75°F
NW 5 mph
Precip.
0%
0%
Night
59°F
W 6 mph
Precip.
0%
0%
09.05
sat
sat
Day
77°F
NW 4 mph
Precip.
0%
0%
Night
59°F
W 5 mph
Precip.
0%
0%
10.05
sun
sun
Day
77°F
SE 4 mph
Precip.
0%
0%
Night
59°F
W 2 mph
Precip.
0%
0%
11.05
mon
mon
Day
73°F
E 7 mph
Precip.
47%
47%
Night
61°F
E 2 mph
Precip.
0%
0%
sea water
temperature
temperature
| Portoroz |
monthly
weather
weather
| Portoroz |
current
weather
weather
| Portoroz |
7 days
forecast
forecast
| Portoroz |
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.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 65.3°F. The highest and lowest sea temperatures during the month were 68.5°F and 60.1°F.
Air temperature in Portoroz, °F
Precipitation total in Portoroz, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Portoroz
Portoroz on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Portoroz
Local time: 02:38
April 28, tuesday
0300
54°F
W
5 mph
5 mph
0600
52°F
W
5 mph
5 mph
0900
64°F
SW
3 mph
3 mph
1200
73°F
E
3 mph
3 mph
1500
72°F
E
7 mph
7 mph
1800
64°F
SE
2 mph
2 mph
2100
55°F
W
4 mph
4 mph
April 29, wednesday
0000
54°F
W
5 mph
5 mph
