Cool
Average highs are around 20°C, so pack for cooler days.
May verdict
Bulgaria in May
Weather score47Mixed
Mixed for holiday weather
Average highs are around 20°C, so pack for cooler days. Sunshine averages 7.3h per day, enough for a balanced month. Rainfall averages 70mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
20°C
Rain
70mm
Sun
7.3h
Sea
5°C
Weather score
47
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 70mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.3h per day, enough for a balanced month.
Cool sea
Sea temperatures average 5°C, so the water can feel cool.
Map
Weather map
Compare 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
May70mm average rain
May is close to Bulgaria's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
May7.3 hours average sun
May sits close to Bulgaria'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
May5°C average sea
May is close to Bulgaria's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJune to September
Sea temperatures are usually near 6°C in this stretch, so swimming comfort is at its strongest.
Weather score
May47 weather score
May sits close to Bulgaria'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.
