Kostinbrod climate — normals and trends
Kostinbrod (Bulgaria) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.1 °C and it receives 592 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 (19.3 °C on average) and the coldest is January (-2.4 °C). Rainfall peaks in May.
Kostinbrod averages 111 frost days, 8 hot days (≥ 30 °C) and 115 rainy days per year.
Kostinbrod has warmed by +1.9 °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 124 to 98 per year over the period.
The hottest day of the period reached 37.9 °C (on 24 July 2007) and the coldest -30.2 °C (on 24 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
KostinbrodSofia
- coords
- 42.82°, 23.22°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.1°C
Average daily high
14.2°C
Average daily low
4.5°C
Annual rainfall
592mm
Sunshine / day
9.4h
Mean relative humidity
73%
Average peak wind
11.1km/h
Seasonal range
21.7°C
Frost days (< 0 °C)
111 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
115 d/yr
Annual snowfall
89.1 cm
Average feels-like high
12.4 °C
Average feels-like low
2.2 °C
Average peak gust
30.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
14.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.50 · 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
37.9 °C
24 July 2007
Coldest day
-30.2 °C
24 January 1942
Wettest day
51 mm
6 August 2007
Windiest day
31.8 km/h
5 April 2000
Strongest gust
94.3 km/h
28 March 1995
Hottest feels-like
37.7 °C
24 July 2007
Coldest feels-like
-34.6 °C
24 January 1942
Snowiest day
20.3 cm
16 April 1973
Sunniest day
15.0 h
25 June 1940
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 | 6.4 °C | +4.6 °C | 23 mm | -17 mm |
| Feb | 4.0 °C | -0.5 °C | 16 mm | -23 mm |
| Mar | 14.0 °C | +5.2 °C | 47 mm | -5 mm |
| Apr | 14.8 °C | +0.5 °C | 56 mm | -6 mm |
| May | 17.9 °C | -1.0 °C | 85 mm | +12 mm |
| Jun | 26.8 °C | +4.2 °C | 11 mm | -59 mm |
| Jul | 29.1 °C | +4.2 °C | 20 mm | -31 mm |
| Aug | 27.0 °C | +1.6 °C | 21 mm | -15 mm |
| Sep | 23.9 °C | +2.5 °C | 17 mm | -17 mm |
| Oct | 13.1 °C | -2.4 °C | 150 mm | +108 mm |
| Nov | 11.4 °C | +2.4 °C | 84 mm | +36 mm |
| Dec | 5.3 °C | +1.9 °C | 31 mm | -15 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 Kostinbrod?
Kostinbrod has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.1 °C and it receives 592 mm of precipitation per year.
What is the hottest day ever recorded in Kostinbrod?
The hottest day measured in Kostinbrod between 1940 and 2025 was 24 July 2007, reaching 37.9 °C.
What is the coldest day in Kostinbrod?
The coldest day measured in Kostinbrod between 1940 and 2025 was 24 January 1942, at -30.2 °C.
Does it snow in Kostinbrod?
Yes. Kostinbrod gets on average 89.1 cm of snow per year and has around 111 frost days.
Has the climate of Kostinbrod warmed?
Yes: Kostinbrod warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kostinbrod?
The wettest day measured in Kostinbrod between 1940 and 2025 was 6 August 2007, with 51 mm of rain in 24 hours.
What was the windiest day in Kostinbrod?
The windiest day measured in Kostinbrod between 1940 and 2025 was 5 April 2000, with winds reaching 31.8 km/h.
What is the warmest month in Kostinbrod?
The warmest month in Kostinbrod is July (19.3 °C on average); the coldest is January (-2.4 °C).
How much does it rain in Kostinbrod?
Kostinbrod receives on average 592 mm of precipitation per year, spread over about 115 rainy days.
Is it sunny in Kostinbrod?
Kostinbrod gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kostinbrod?
The heaviest 24-hour snowfall measured in Kostinbrod between 1940 and 2025 was 16 April 1973, with 20.3 cm.
Are there tropical nights in Kostinbrod?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kostinbrod.
What was the most extreme apparent temperature in Kostinbrod?
In Kostinbrod, between 1940 and 2025, the highest apparent temperature reached 37.7 °C on 24 July 2007, and the lowest was -34.6 °C on 24 January 1942.
Compare Kostinbrod with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kostinbrod