Mild
Average highs are around 22°C, so days are mild rather than hot.
September verdict
Bulgaria in September
Weather score61Good
Good for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 7.5h per day, enough for a balanced month. Rainfall averages 41mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
22°C
Rain
41mm
Sun
7.5h
Sea
7°C
Weather score
61
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 41mm, 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 7°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
September22°C average high
September 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
September41mm average rain
September 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
September7.5 hours average sun
September is brighter than Bulgaria'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
September7°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJune to September
Sea temperatures are usually near 6°C in this stretch, so swimming comfort is at its strongest.
Weather score
September61 weather score
September scores above Bulgaria's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
