The best months to visit Sofia are May, June and September, when average highs sit in the comfortable low-to-mid twenties and the sun is generous — June reaches an average high of 25.4 °C, while September climbs to 24.2 °C with just 5 rain days. July and August are hot and busy peak season, filled with school-holiday crowds and average highs of 28.3 °C and 28.6 °C. Winter is the quiet low season, cold and grey, with January highs of only 5 °C and short days.
Best months MayJuneSeptember
Sofia month by month
Average highs and lows (°C), 2016–2025. Highlighted bars are the best months.
| Month | High | Low | Rain days | Sun / day |
|---|---|---|---|---|
| January | 5 °C | -3.4 °C | 9 | 6.5 h |
| February | 8.9 °C | -1.2 °C | 7 | 7.6 h |
| March | 12.2 °C | 1.4 °C | 11 | 8.2 h |
| April | 16.9 °C | 5.5 °C | 10 | 10.3 h |
| May | 20.4 °C | 9.9 °C | 13 | 11.3 h |
| June | 25.4 °C | 14.7 °C | 11 | 13.2 h |
| July | 28.3 °C | 16.8 °C | 6 | 13.8 h |
| August | 28.6 °C | 16.6 °C | 6 | 12.5 h |
| September | 24.2 °C | 12.7 °C | 5 | 10.7 h |
| October | 18.2 °C | 7.5 °C | 7 | 8.7 h |
| November | 11.6 °C | 3.2 °C | 10 | 6.5 h |
| December | 6.5 °C | -0.9 °C | 10 | 6.1 h |
How the months are picked.A month qualifies when its average high sits in the comfortable 20–28 °C band (scored down towards 9 °C and 37 °C), rain days are few and sunshine hours are high — at least 78 % of the city's best-scoring month. July and August are then set aside as peak season (school-holiday crowds and prices) whenever at least three other months qualify; where summer is the only comfortable window they stay. Figures are ten-year averages (2016-01-01 to 2025-12-31) from ERA5 reanalysis data via Open-Meteo (CC BY 4.0) for the city centre coordinates.
When to go, and what to expect
Spring (Mar–May)
A fine time for sightseeing and green surroundings if you can accept spring showers.
Summer (Jun–Aug)
June is the sweet spot; July and August suit those who don't mind heat and bustle.
Autumn (Sep–Nov)
September is one of the year's best months; ideal for walking the city comfortably.
Winter (Dec–Feb)
For nearby ski trips and snowy cathedral views rather than casual sightseeing.
Notable events
- March
- Sofia International Film Festival
- Spring (April/May)
- Alexander Nevsky Cathedral feast and Orthodox Easter celebrations
- December
- Sofia Christmas Market
- September
- St. Sofia Day (city holiday)
Frequently asked
Is Sofia too hot in August?
August is the warmest month, with average highs of 28.6 °C and lows of 16.6 °C. It's hot but usually bearable, and evenings cool down; expect just 6 rain days and busy peak-season streets.
What is the rainiest month in Sofia?
May sees the most wet days, with 13 rain days, followed by March with 11 and June with 11. September is the driest of the warm months at only 5 rain days.
Is winter worth visiting Sofia?
Winter is cold and grey — January highs reach just 5 °C with lows of -3.4 °C and 6.5 hours of sunshine a day. It's worth it for festive markets and easy access to nearby skiing, but less so for general sightseeing.
Know when to go? Now decide where to stay — our Sofia area guide →
Areas of Sofia
Best time to visit near here
Sources
- Open-Meteo historical weather API — monthly climate normals, 2016–2025 (CC BY 4.0)
- ERA5 reanalysis (ECMWF / Copernicus) — the underlying temperature, precipitation and sunshine data
- ReasonStay methodology — how the best months are computed and checked
An independent guide to Sofia — honest, verified, no invented data. Climate figures: ERA5 via Open-Meteo, 2016–2025 averages; the best months are computed from them, not opinion.