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Portoroz weather in April

Weather in Portoroz: April

Average day temperature: 62.5°F
Average night temperature: 47.5°F
Sea water temperature: 56.0°F
Number of sunny days: 14 days
Day length: 12.8 - 14.3 hours
Number of rainy days: 5 days
Precipitation totals: 2.7 in.

Air temperature in April, °F

Show year:
2025
2024
2023

The highest day temperature during April of 2025 was 76°F. At the same time the lowest night temperature was 31°F. Daily and nightly averages during April were 63.0°F and 48.9°F.

Sea water temperature in Portoroz in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 56.5°F. The highest and lowest sea temperatures during the month were 62.1°F and 52.3°F.

Sunny, partly cloudy and cloudy days

Mostly all days in April are sunny but cloudy days are also possible.

Precipitation total in April, in.

Precipitation total value in Portoroz in April is 3.0 in. Other months of the year show relatively similar values.

Wind speed in April, mph

The average wind speed value in April is 6.0 mph It makes April one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in April is: 7.2.

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 45.6 °F
December 47.7 °F
February 48.3 °F
Rainiest months:
May 7 days
November 6 days
September 6 days
Windiest months:
February 6.5 mph
March 6.4 mph
November 6.1 mph

Portoroz on a weather map

Portoroz
+43°F
W 4 mph
Feels like: +39°F
Precip.: 0%
Places in Slovenia:
Name
°F
+36°F
+43°F
+43°F
+34°F
+37°F
+36°F
+43°F
+43°F
+43°F
+36°F
+43°F
24 Hours Forecast
Portoroz
Local time: 05:00
December 05, friday
0600
43°F
W
4 mph
0900
45°F
W
4 mph
1200
50°F
SW
5 mph
1500
48°F
SW
6 mph
1800
45°F
SW
7 mph
2100
39°F
SW
6 mph
December 06, saturday
0000
39°F
SW
6 mph
0300
43°F
SW
6 mph
Units of measurement: °C / °F