August
Best time
27°C / 15°C
7 rain days
warm
- comfortable temperatures (avg high 27°C / 81°F)
- manageable rain (7 days)
- warm evenings without humidity overload
Best time to visit Sofia
Sofia, Bulgaria — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: August, September, October.
About Sofia
Sofia is the capital and largest city of Bulgaria. It is situated in the Sofia Valley at the foot of the Vitosha mountain, in the western part of the country. The city is built west of the Iskar river and has many mineral springs, such as the Sofia Central Mineral Baths.
— condensed from Wikipedia
Best months to visit
September
Best time
23°C / 11°C
7 rain days
warm
- comfortable temperatures (avg high 23°C / 73°F)
- manageable rain (7 days)
October
Best time
17°C / 7°C
8 rain days
mild
- manageable rain (8 days)
June
Best time
25°C / 13°C
11 rain days
warm, rainy
- comfortable temperatures (avg high 25°C / 77°F)
July
Best time
28°C / 15°C
9 rain days
hot
- manageable rain (9 days)
- warm evenings without humidity overload
May
Best time
21°C / 10°C
12 rain days
mild, rainy
- comfortable temperatures (avg high 21°C / 70°F)
April
Best time
16°C / 5°C
11 rain days
mild, rainy
OK — shoulder months
March
OK
11°C / 1°C
8 rain days
1 snow days
cool
- manageable rain (8 days)
November
OK
9°C / 2°C
9 rain days
1 snow days
chilly
- manageable rain (9 days)
February
OK
5°C / -3°C
7 rain days
3 snow days
chilly, freezing nights, snowy
- manageable rain (7 days)
Months to skip
December
Skip
4°C / -2°C
9 rain days
3 snow days
cold, freezing nights, snowy
- freezing at night (-2°C)
January
Skip
3°C / -4°C
8 rain days
4 snow days
cold, freezing nights, snowy
- freezing at night (-4°C)
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.