Sofia in Summer
In summer (June, July and August), Sofia sees average daytime highs around 25°C and overnight lows near 13°C, with 148 mm of rain over about 29 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Over the season highs climb from about 22°C in early June to 25°C by late August. The sky is clear or mostly clear about 53% of the time across summer, and the air most often feels dry.
Summer is Sofia's best season of the year to visit on our travel score. For the whole year in context, see Sofia's year-round climate.
- Avg daytime high
- 25°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 148 mm
- 29 wet days
- Avg wind
- 7 km/h
- Travel score
- 7.1
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Sofia in Summer
Over the season highs climb from about 22°C in early June to 25°C by late August.
A typical summer day in Sofia reaches about 25°C and drops to 13°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Sofia
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Sofia weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 3° / -5° | 39 | 7.6 | 5.7 | 9.2 | 0.0 |
| Feb | 5° / -4° | 39 | 7.4 | 6 | 10.3 | 0.3 |
| Mar | 10° / -0° | 54 | 10.5 | 5.4 | 11.6 | 2.1 |
| Apr | 15° / 4° | 58 | 11.4 | 1.6 | 13.1 | 4.2 |
| May | 19° / 9° | 70 | 13.5 | 0.1 | 14.4 | 5.7 |
| Jun | 23° / 12° | 63 | 11.7 | 0 | 15.1 | 6.7 |
| Jul | 26° / 14° | 51 | 9.7 | 0 | 14.8 | 7.1 |
| Aug | 26° / 14° | 35 | 7.2 | 0 | 13.7 | 7.5 |
| Sep | 22° / 10° | 35 | 6.5 | 0 | 12.3 | 7.4 |
| Oct | 16° / 6° | 46 | 6.9 | 0.7 | 10.8 | 5.4 |
| Nov | 9° / 1° | 36 | 6.7 | 2.4 | 9.6 | 2.2 |
| Dec | 4° / -3° | 45 | 8.6 | 5.6 | 8.9 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 53% of the time across summer.
Chance of precipitation in Summer
Sofia gets around 148 mm of rain over 29 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 7 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 54 min in early June to 13 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.1 kWh/m².
Is summer a good time to visit Sofia?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Sofia for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Sofia in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Sofia sees daytime highs around 25°C and nights near 13°C. Pack sun protection. Worth having: light clothes and rain gear. About 29 days see rain.
UV index in Sofia in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sofia peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 8 | 7 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | Very high | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 8 | Very high |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Sofia?
Sofia sits at 42.7°N, 23.3°E, 562 m above sea level, in Bulgaria. The nearest listed city is Pernik, 26 km away.
Topography around Sofia
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sofia.
Within 3 km, the terrain around Sofia has only modest variations in elevation — a maximum elevation change of 97 m around an average of 554 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,775 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,775 m.
The land around Sofia is covered by artificial surfaces (68%) and trees (29%) within 3 km, cropland (33%) and trees (31%) within 16 km, and trees (64%) and grassland (21%) within 80 km.
Bulgaria travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 23% of US
- price level, 2025
- GDP per capita
- $20,328
- 2025
- Happiness
- 5.7 / 10
- World Happiness, 2025
- Safe drinking water
- 96%
- of population, 2024
- Homicide rate
- 1.1
- per 100k, 2023
- Road deaths
- 9.2
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- High
- EF EPI 594
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sofia (42.6975°, 23.3241°, elevation 562 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.