The highest day temperature in April 2026 was 76°F. The lowest night temperature was 42°F. The average values for day and night temperatures during April were 67.2°F и 49.5°F respectivly.

The average sea surface temperature in April 2026 for Portoroz was 57.8°F. The maximum and minimum values were 53.0°F and 63.6°F respectively.

Most of the days in April are sunny but you can also expect cloudy and gloomy days.

Precipitation total in April for Portoroz is 2.6 in.

The average wind speed in April is 6.0 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Portoroz in April is 8.5 hours.