Cool
Average highs are around 16°C, so pack for cooler days.
October verdict
Poor for holiday weather
Average highs are around 16°C, so pack for cooler days. Sunshine averages 5.1h per day, enough for a balanced month. Rainfall averages 148mm, so some wet days are possible.
Monthly averages
Temp
16°C
Rain
148mm
Sun
5.1h
Sea
18°C
Weather score
25
Poor
Cool
Average highs are around 16°C, so pack for cooler days.
Showers
Rainfall averages 148mm, so some wet days are possible.
Some sun
Sunshine averages 5.1h per day, enough for a balanced month.
Cool sea
Sea temperatures average 18°C, so the water can feel cool.
Map
Compare Opatija, Croatia with nearby places by weather score, rain, sun, temperature, and swim conditions.
October16°C average high
October is close to Opatija'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.
October148mm average rain
October is wetter than Opatija's yearly average, so flexible plans matter more.
Driest monthsJanuary to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
October5.1 hours average sun
October is below Opatija's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
October18°C average sea
October is close to Opatija's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJune to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
October25 weather score
October scores below Opatija'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.