Harmanli climate — normals and trends
Harmanli (Bulgaria) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.9 °C and it receives 622 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 (23.9 °C on average) and the coldest is January (1.3 °C). Rainfall peaks in May.
Harmanli averages 63 frost days, 40 hot days (≥ 30 °C) and 94 rainy days per year.
Harmanli 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 75 to 51 per year over the period.
The hottest day of the period reached 41.0 °C (on 26 July 2023) and the coldest -25.7 °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
HarmanliHaskovo
- coords
- 41.93°, 25.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.9°C
Average daily high
17.8°C
Average daily low
8.3°C
Annual rainfall
622mm
Sunshine / day
9.5h
Mean relative humidity
71%
Average peak wind
14.5km/h
Seasonal range
22.6°C
Frost days (< 0 °C)
63 d/yr
Hot days (≥ 30 °C)
40 d/yr
Rainy days (≥ 1 mm)
94 d/yr
Annual snowfall
53.3 cm
Average feels-like high
16.5 °C
Average feels-like low
6.4 °C
Average peak gust
31.1 km/h
Tropical nights (≥ 20 °C)
16 d/yr
Solar radiation
14.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.42 · 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
41.0 °C
26 July 2023
Coldest day
-25.7 °C
24 January 1942
Wettest day
70 mm
6 October 1972
Windiest day
50.8 km/h
27 February 2004
Strongest gust
99.0 km/h
15 February 2005
Hottest feels-like
42.8 °C
5 July 2000
Coldest feels-like
-30.3 °C
24 January 1942
Snowiest day
27.3 cm
2 January 1969
Sunniest day
14.8 h
3 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 | 10.0 °C | +4.9 °C | 33 mm | -19 mm |
| Feb | 6.4 °C | -1.4 °C | 35 mm | -14 mm |
| Mar | 16.9 °C | +5.5 °C | 52 mm | -2 mm |
| Apr | 17.5 °C | +0.3 °C | 64 mm | +4 mm |
| May | 22.8 °C | +0.5 °C | 108 mm | +40 mm |
| Jun | 31.6 °C | +4.9 °C | 12 mm | -49 mm |
| Jul | 35.4 °C | +5.8 °C | 6 mm | -35 mm |
| Aug | 32.1 °C | +2.2 °C | 29 mm | +0 mm |
| Sep | 27.7 °C | +2.2 °C | 14 mm | -21 mm |
| Oct | 18.0 °C | -0.9 °C | 132 mm | +82 mm |
| Nov | 16.6 °C | +4.1 °C | 37 mm | -19 mm |
| Dec | 9.7 °C | +2.7 °C | 34 mm | -31 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 Harmanli?
Harmanli has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 12.9 °C and it receives 622 mm of precipitation per year.
What is the hottest day ever recorded in Harmanli?
The hottest day measured in Harmanli between 1940 and 2025 was 26 July 2023, reaching 41.0 °C.
What is the coldest day in Harmanli?
The coldest day measured in Harmanli between 1940 and 2025 was 24 January 1942, at -25.7 °C.
Does it snow in Harmanli?
Yes. Harmanli gets on average 53.3 cm of snow per year and has around 63 frost days.
Has the climate of Harmanli warmed?
Yes: Harmanli warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Harmanli?
The wettest day measured in Harmanli between 1940 and 2025 was 6 October 1972, with 70 mm of rain in 24 hours.
What was the windiest day in Harmanli?
The windiest day measured in Harmanli between 1940 and 2025 was 27 February 2004, with winds reaching 50.8 km/h.
What is the warmest month in Harmanli?
The warmest month in Harmanli is July (23.9 °C on average); the coldest is January (1.3 °C).
How much does it rain in Harmanli?
Harmanli receives on average 622 mm of precipitation per year, spread over about 94 rainy days.
Is it sunny in Harmanli?
Harmanli gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
What is the biggest single-day snowfall in Harmanli?
The heaviest 24-hour snowfall measured in Harmanli between 1940 and 2025 was 2 January 1969, with 27.3 cm.
Are there tropical nights in Harmanli?
Yes: Harmanli has on average 16 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Harmanli?
In Harmanli, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 5 July 2000, and the lowest was -30.3 °C on 24 January 1942.
Compare Harmanli with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Harmanli