Measurements:
°C
°F
CURRENT WEATHER
15:23
Portoroz
48°F
SW 2 mph
Feels like: 48°F
Precip: 0%
World Resorts Slovenia Portoroz Weather

7 Day Weather Forecast

01.30
fri
DAY
46°F
W 2 mph
precip
0%
NIGHT
36°F
W 5 mph
precip
0%
01.31
sat
DAY
48°F
SW 4 mph
precip
0%
NIGHT
36°F
W 6 mph
precip
0%
02.01
sun
DAY
44°F
SW 14 mph
precip
0%
NIGHT
36°F
SW 9 mph
precip
0%
02.02
mon
DAY
44°F
SW 3 mph
precip
0%
NIGHT
36°F
NW 4 mph
precip
60%
02.03
tue
DAY
42°F
SW 1 mph
precip
61%
NIGHT
48°F
NW 6 mph
precip
100%
02.04
wed
DAY
54°F
NW 14 mph
precip
100%
NIGHT
54°F
NW 9 mph
precip
82%
02.05
thu
DAY
54°F
W 4 mph
precip
87%
NIGHT
48°F
W 6 mph
precip
0%

Portoroz Sea Water Temperature in January, °F

Select Year: 2026 2025 2024

The average sea surface temperature in January 2026 for Portoroz was 10.8°F. The maximum and minimum values were 9.7°F and 12.5°F respectively.

Portoroz on the Weather Map

Best Time to Visit Portoroz
The most sunny months:
August 23 days
July 22 days
June 20 days
The most warm months:
August 88.9 °F
July 88.7 °F
June 83.6 °F
Warmest sea temperature:
August 81.9 °F
July 81.5 °F
September 76.9 °F
The most cold months:
January 45.0 °F
December 47.7 °F
February 48.2 °F
The most rainy months:
May 7 days
November 6 days
September 6 days
The most windy months:
February 6 mph
March 6 mph
November 6 mph
more details