Cool
Average highs are around 20°C, so pack for cooler days.
May verdict
Sunny Beach, Bulgaria in May
Weather score48Mixed
Mixed for holiday weather
Average highs are around 20°C, so pack for cooler days. Sunshine averages 7.5h per day, enough for a balanced month. Rainfall averages 48mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
20°C
Rain
48mm
Sun
7.5h
Sea
16°C
Weather score
48
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 48mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.5h per day, enough for a balanced month.
Cool sea
Sea temperatures average 16°C, so the water can feel cool.
Map
Weather map
Compare Sunny Beach, Bulgaria with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May20°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
May48mm average rain
May sits near Sunny Beach's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to October and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May7.5 hours average sun
May is brighter than Sunny Beach'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.
Sea temperature
May16°C average sea
May is close to Sunny Beach's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJune to September
Sea temperatures are usually near 22°C in this stretch, so swimming comfort is at its strongest.
Weather score
May48 weather score
May sits close to Sunny Beach's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
