Cool
Average highs are around 17°C, so pack for cooler days.
April verdict
Portorož, Slovenia in April
Weather score31Poor
Poor for holiday weather
Average highs are around 17°C, so pack for cooler days. Sunshine averages 6h per day, enough for a balanced month. Rainfall averages 85mm, so some wet days are possible.
April weather
Monthly averages
Temp
17°C
Rain
85mm
Sun
6h
Sea
13°C
Weather score
31
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 85mm, so some wet days are possible.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Weather map
Compare Portorož, Slovenia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
April17°C average high
April is close to Portorož's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
April85mm average rain
April sits near Portorož's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to August, October, and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
April6 hours average sun
April sits close to Portorož's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
April13°C average sea
April is below Portorož's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJune to September
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
April31 weather score
April scores below Portorož's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
