Cool
Average highs are around 18°C, so pack for cooler days.
May verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 6.2h per day, enough for a balanced month. Rainfall averages 92mm, so some wet days are possible.
Monthly averages
Temp
18°C
Rain
92mm
Sun
6.2h
Sea
0°C
Weather score
33
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Showers
Rainfall averages 92mm, so some wet days are possible.
Some sun
Sunshine averages 6.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 0°C, so the water can feel cool.
Map
Compare Slovakia with nearby places by weather score, rain, sun, temperature, and swim conditions.
May18°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
May92mm average rain
May sits near Slovakia's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May6.2 hours average sun
May is brighter than Slovakia's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
May0°C average sea
May is close to Slovakia's usual sea temperature, with limited seasonal change in the water.
Warmest seaAll year
Sea temperatures stay warm enough for easy swimming through the year.
May33 weather score
May sits close to Slovakia's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.