Mild
Average highs are around 25°C, so days are mild rather than hot.
August verdict
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 8.6h per day, so bright days are a strong part of the month. Rainfall averages 117mm, so some wet days are possible.
Monthly averages
Temp
25°C
Rain
117mm
Sun
8.6h
Sea
23°C
Weather score
60
Good
Mild
Average highs are around 25°C, so days are mild rather than hot.
Showers
Rainfall averages 117mm, so some wet days are possible.
Bright
Sunshine averages 8.6h per day, so bright days are a strong part of the month.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Compare Opatija, Croatia with nearby places by weather score, rain, sun, temperature, and swim conditions.
August25°C average high
August is one of Opatija's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
August117mm average rain
August sits near Opatija's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August8.6 hours average sun
August is brighter than Opatija's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
August23°C average sea
August is one of Opatija's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
August60 weather score
August is one of Opatija's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.