Stamboliyski climate — normals and trends
Stamboliyski (Bulgaria) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.1 °C and it receives 550 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 (23.2 °C on average) and the coldest is January (0.3 °C). Rainfall peaks in May.
Stamboliyski averages 77 frost days, 34 hot days (≥ 30 °C) and 95 rainy days per year.
Stamboliyski has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 90 to 64 per year over the period.
The hottest day of the period reached 41.7 °C (on 5 July 2000) and the coldest -26.5 °C (on 25 January 1942).
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
StamboliyskiPlovdiv
- coords
- 42.13°, 24.53°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.1°C
Average daily high
17.4°C
Average daily low
7.2°C
Annual rainfall
550mm
Sunshine / day
9.6h
Mean relative humidity
69%
Average peak wind
10.5km/h
Seasonal range
22.9°C
Frost days (< 0 °C)
77 d/yr
Hot days (≥ 30 °C)
34 d/yr
Rainy days (≥ 1 mm)
95 d/yr
Annual snowfall
58.9 cm
Average feels-like high
16.3 °C
Average feels-like low
5.3 °C
Average peak gust
24.9 km/h
Tropical nights (≥ 20 °C)
6 d/yr
Solar radiation
14.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.45 · 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
41.7 °C
5 July 2000
Coldest day
-26.5 °C
25 January 1942
Wettest day
79 mm
27 September 2001
Windiest day
35.7 km/h
2 April 1944
Strongest gust
74.5 km/h
27 September 1974
Hottest feels-like
43.3 °C
5 July 2000
Coldest feels-like
-30.9 °C
25 January 1942
Snowiest day
31.8 cm
7 March 2015
Sunniest day
14.9 h
7 July 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 | 9.0 °C | +4.3 °C | 28 mm | -16 mm |
| Feb | 6.6 °C | -0.8 °C | 21 mm | -20 mm |
| Mar | 16.7 °C | +5.2 °C | 54 mm | +1 mm |
| Apr | 17.5 °C | +0.3 °C | 70 mm | +15 mm |
| May | 22.3 °C | +0.3 °C | 107 mm | +44 mm |
| Jun | 32.1 °C | +5.8 °C | 8 mm | -45 mm |
| Jul | 34.9 °C | +5.9 °C | 32 mm | -5 mm |
| Aug | 31.9 °C | +2.7 °C | 12 mm | -14 mm |
| Sep | 28.1 °C | +3.4 °C | 9 mm | -24 mm |
| Oct | 17.0 °C | -1.2 °C | 126 mm | +84 mm |
| Nov | 15.2 °C | +3.5 °C | 59 mm | +11 mm |
| Dec | 9.4 °C | +2.9 °C | 74 mm | +18 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 Stamboliyski?
Stamboliyski has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 12.1 °C and it receives 550 mm of precipitation per year.
What is the hottest day ever recorded in Stamboliyski?
The hottest day measured in Stamboliyski between 1940 and 2025 was 5 July 2000, reaching 41.7 °C.
What is the coldest day in Stamboliyski?
The coldest day measured in Stamboliyski between 1940 and 2025 was 25 January 1942, at -26.5 °C.
Does it snow in Stamboliyski?
Yes. Stamboliyski gets on average 58.9 cm of snow per year and has around 77 frost days.
Has the climate of Stamboliyski warmed?
Yes: Stamboliyski warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Stamboliyski?
The wettest day measured in Stamboliyski between 1940 and 2025 was 27 September 2001, with 79 mm of rain in 24 hours.
What was the windiest day in Stamboliyski?
The windiest day measured in Stamboliyski between 1940 and 2025 was 2 April 1944, with winds reaching 35.7 km/h.
What is the warmest month in Stamboliyski?
The warmest month in Stamboliyski is July (23.2 °C on average); the coldest is January (0.3 °C).
How much does it rain in Stamboliyski?
Stamboliyski receives on average 550 mm of precipitation per year, spread over about 95 rainy days.
Is it sunny in Stamboliyski?
Stamboliyski gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
What is the biggest single-day snowfall in Stamboliyski?
The heaviest 24-hour snowfall measured in Stamboliyski between 1940 and 2025 was 7 March 2015, with 31.8 cm.
Are there tropical nights in Stamboliyski?
Yes: Stamboliyski has on average 6 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Stamboliyski?
In Stamboliyski, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 5 July 2000, and the lowest was -30.9 °C on 25 January 1942.
Compare Stamboliyski with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Stamboliyski