Smolyan climate — normals and trends
Smolyan (Bulgaria) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.4 °C and it receives 1,114 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (18.2 °C on average) and the coldest is January (-1.8 °C). Rainfall peaks in June.
Smolyan averages 109 frost days, 2 hot days (≥ 30 °C) and 144 rainy days per year.
Smolyan has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 122 to 96 per year over the period.
The hottest day of the period reached 35.8 °C (on 24 July 2007) and the coldest -27.1 °C (on 4 January 1979).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
SmolyanSmolyan
- coords
- 41.57°, 24.71°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.4°C
Average daily high
13.3°C
Average daily low
4.2°C
Annual rainfall
1,114mm
Sunshine / day
9.8h
Mean relative humidity
77%
Average peak wind
10.7km/h
Seasonal range
20.0°C
Frost days (< 0 °C)
109 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
144 d/yr
Annual snowfall
133.0 cm
Average feels-like high
11.7 °C
Average feels-like low
1.8 °C
Average peak gust
33.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
14.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.46 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
35.8 °C
24 July 2007
Coldest day
-27.1 °C
4 January 1979
Wettest day
89 mm
6 November 1961
Windiest day
34.2 km/h
6 November 1961
Strongest gust
122.4 km/h
1 January 1971
Hottest feels-like
37.5 °C
24 July 2007
Coldest feels-like
-31.9 °C
4 January 1979
Snowiest day
53.3 cm
7 March 2015
Sunniest day
14.9 h
26 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 6.1 °C | +3.8 °C | 55 mm | -25 mm |
| Feb | 3.6 °C | -0.5 °C | 36 mm | -42 mm |
| Mar | 11.9 °C | +4.5 °C | 75 mm | -12 mm |
| Apr | 13.0 °C | +0.5 °C | 147 mm | +42 mm |
| May | 16.9 °C | -0.2 °C | 171 mm | +31 mm |
| Jun | 25.4 °C | +4.5 °C | 30 mm | -116 mm |
| Jul | 27.7 °C | +4.3 °C | 40 mm | -64 mm |
| Aug | 24.9 °C | +1.2 °C | 75 mm | +8 mm |
| Sep | 21.8 °C | +1.8 °C | 33 mm | -24 mm |
| Oct | 13.2 °C | -1.4 °C | 155 mm | +91 mm |
| Nov | 11.7 °C | +2.7 °C | 146 mm | +61 mm |
| Dec | 6.8 °C | +2.7 °C | 81 mm | -21 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Smolyan?
Smolyan has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.4 °C and it receives 1,114 mm of precipitation per year.
What is the hottest day ever recorded in Smolyan?
The hottest day measured in Smolyan between 1940 and 2025 was 24 July 2007, reaching 35.8 °C.
What is the coldest day in Smolyan?
The coldest day measured in Smolyan between 1940 and 2025 was 4 January 1979, at -27.1 °C.
Does it snow in Smolyan?
Yes. Smolyan gets on average 133.0 cm of snow per year and has around 109 frost days.
Has the climate of Smolyan warmed?
Yes: Smolyan warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Smolyan?
The wettest day measured in Smolyan between 1940 and 2025 was 6 November 1961, with 89 mm of rain in 24 hours.
What was the windiest day in Smolyan?
The windiest day measured in Smolyan between 1940 and 2025 was 6 November 1961, with winds reaching 34.2 km/h.
What is the warmest month in Smolyan?
The warmest month in Smolyan is July (18.2 °C on average); the coldest is January (-1.8 °C).
How much does it rain in Smolyan?
Smolyan receives on average 1,114 mm of precipitation per year, spread over about 144 rainy days.
Is it sunny in Smolyan?
Smolyan gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
What is the biggest single-day snowfall in Smolyan?
The heaviest 24-hour snowfall measured in Smolyan between 1940 and 2025 was 7 March 2015, with 53.3 cm.
Are there tropical nights in Smolyan?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Smolyan.
What was the most extreme apparent temperature in Smolyan?
In Smolyan, between 1940 and 2025, the highest apparent temperature reached 37.5 °C on 24 July 2007, and the lowest was -31.9 °C on 4 January 1979.
Compare Smolyan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Smolyan