Karlovo climate — normals and trends
Karlovo (Bulgaria) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.4 °C and it receives 979 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 (19.5 °C on average) and the coldest is January (-1.7 °C). Rainfall peaks in June.
Karlovo averages 100 frost days, 5 hot days (≥ 30 °C) and 141 rainy days per year.
Karlovo 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 115 to 85 per year over the period.
The hottest day of the period reached 37.7 °C (on 24 July 2007) and the coldest -28.5 °C (on 13 January 1950).
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
KarlovoPlovdiv
- coords
- 42.63°, 24.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.4°C
Average daily high
14.1°C
Average daily low
5.2°C
Annual rainfall
979mm
Sunshine / day
9.6h
Mean relative humidity
78%
Average peak wind
8.0km/h
Seasonal range
21.2°C
Frost days (< 0 °C)
100 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
141 d/yr
Annual snowfall
104.8 cm
Average feels-like high
13.1 °C
Average feels-like low
3.3 °C
Average peak gust
29.0 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 = 0.48 · 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
37.7 °C
24 July 2007
Coldest day
-28.5 °C
13 January 1950
Wettest day
75 mm
10 May 1973
Windiest day
28.8 km/h
19 February 1946
Strongest gust
107.6 km/h
15 February 2005
Hottest feels-like
40.0 °C
24 July 2007
Coldest feels-like
-32.9 °C
13 January 1950
Snowiest day
27.8 cm
16 April 1973
Sunniest day
15.0 h
24 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 | 7.2 °C | +5.0 °C | 22 mm | -27 mm |
| Feb | 3.2 °C | -1.2 °C | 22 mm | -26 mm |
| Mar | 13.6 °C | +5.3 °C | 68 mm | +1 mm |
| Apr | 14.3 °C | +0.2 °C | 110 mm | +10 mm |
| May | 17.9 °C | -0.9 °C | 185 mm | +46 mm |
| Jun | 26.6 °C | +4.2 °C | 41 mm | -104 mm |
| Jul | 29.1 °C | +4.5 °C | 73 mm | -41 mm |
| Aug | 26.9 °C | +2.0 °C | 51 mm | -27 mm |
| Sep | 23.2 °C | +2.2 °C | 25 mm | -38 mm |
| Oct | 13.6 °C | -1.7 °C | 165 mm | +109 mm |
| Nov | 12.0 °C | +2.9 °C | 111 mm | +53 mm |
| Dec | 5.9 °C | +2.0 °C | 47 mm | -13 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 Karlovo?
Karlovo has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.4 °C and it receives 979 mm of precipitation per year.
What is the hottest day ever recorded in Karlovo?
The hottest day measured in Karlovo between 1940 and 2025 was 24 July 2007, reaching 37.7 °C.
What is the coldest day in Karlovo?
The coldest day measured in Karlovo between 1940 and 2025 was 13 January 1950, at -28.5 °C.
Does it snow in Karlovo?
Yes. Karlovo gets on average 104.8 cm of snow per year and has around 100 frost days.
Has the climate of Karlovo warmed?
Yes: Karlovo warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Karlovo?
The wettest day measured in Karlovo between 1940 and 2025 was 10 May 1973, with 75 mm of rain in 24 hours.
What was the windiest day in Karlovo?
The windiest day measured in Karlovo between 1940 and 2025 was 19 February 1946, with winds reaching 28.8 km/h.
What is the warmest month in Karlovo?
The warmest month in Karlovo is July (19.5 °C on average); the coldest is January (-1.7 °C).
How much does it rain in Karlovo?
Karlovo receives on average 979 mm of precipitation per year, spread over about 141 rainy days.
Is it sunny in Karlovo?
Karlovo 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 Karlovo?
The heaviest 24-hour snowfall measured in Karlovo between 1940 and 2025 was 16 April 1973, with 27.8 cm.
Are there tropical nights in Karlovo?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Karlovo.
What was the most extreme apparent temperature in Karlovo?
In Karlovo, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 24 July 2007, and the lowest was -32.9 °C on 13 January 1950.
Compare Karlovo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Karlovo