Razlog climate — normals and trends
Razlog (Bulgaria) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.0 °C and it receives 960 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 (15.7 °C on average) and the coldest is January (-4.5 °C). Rainfall peaks in May.
Razlog averages 148 frost days, 0 hot days (≥ 30 °C) and 146 rainy days per year.
Razlog has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 157 to 139 per year over the period.
The hottest day of the period reached 32.5 °C (on 24 July 2007) and the coldest -29.7 °C (on 3 January 1940).
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
RazlogBlagoevgrad
- coords
- 41.89°, 23.47°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.0°C
Average daily high
10.7°C
Average daily low
1.6°C
Annual rainfall
960mm
Sunshine / day
9.7h
Mean relative humidity
76%
Average peak wind
8.5km/h
Seasonal range
20.2°C
Frost days (< 0 °C)
148 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
146 d/yr
Annual snowfall
201.7 cm
Average feels-like high
8.8 °C
Average feels-like low
-1.0 °C
Average peak gust
32.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.47 · 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
32.5 °C
24 July 2007
Coldest day
-29.7 °C
3 January 1940
Wettest day
63 mm
6 August 2005
Windiest day
25.7 km/h
27 March 1993
Strongest gust
115.6 km/h
14 November 2004
Hottest feels-like
32.7 °C
11 July 1980
Coldest feels-like
-34.4 °C
3 January 1940
Snowiest day
34.9 cm
15 February 1991
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 | 2.9 °C | +3.5 °C | 50 mm | -14 mm |
| Feb | 1.6 °C | +0.4 °C | 26 mm | -36 mm |
| Mar | 9.8 °C | +5.3 °C | 91 mm | +14 mm |
| Apr | 10.8 °C | +1.0 °C | 129 mm | +33 mm |
| May | 14.4 °C | -0.5 °C | 183 mm | +59 mm |
| Jun | 23.0 °C | +4.5 °C | 30 mm | -88 mm |
| Jul | 25.9 °C | +5.1 °C | 60 mm | -26 mm |
| Aug | 23.0 °C | +1.9 °C | 77 mm | +9 mm |
| Sep | 21.0 °C | +3.4 °C | 37 mm | -20 mm |
| Oct | 10.2 °C | -2.3 °C | 135 mm | +74 mm |
| Nov | 9.5 °C | +2.8 °C | 119 mm | +48 mm |
| Dec | 3.9 °C | +2.6 °C | 67 mm | -10 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 Razlog?
Razlog has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.0 °C and it receives 960 mm of precipitation per year.
What is the hottest day ever recorded in Razlog?
The hottest day measured in Razlog between 1940 and 2025 was 24 July 2007, reaching 32.5 °C.
What is the coldest day in Razlog?
The coldest day measured in Razlog between 1940 and 2025 was 3 January 1940, at -29.7 °C.
Does it snow in Razlog?
Yes. Razlog gets on average 201.7 cm of snow per year and has around 148 frost days.
Has the climate of Razlog warmed?
Yes: Razlog warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Razlog?
The wettest day measured in Razlog between 1940 and 2025 was 6 August 2005, with 63 mm of rain in 24 hours.
What was the windiest day in Razlog?
The windiest day measured in Razlog between 1940 and 2025 was 27 March 1993, with winds reaching 25.7 km/h.
What is the warmest month in Razlog?
The warmest month in Razlog is July (15.7 °C on average); the coldest is January (-4.5 °C).
How much does it rain in Razlog?
Razlog receives on average 960 mm of precipitation per year, spread over about 146 rainy days.
Is it sunny in Razlog?
Razlog gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
What is the biggest single-day snowfall in Razlog?
The heaviest 24-hour snowfall measured in Razlog between 1940 and 2025 was 15 February 1991, with 34.9 cm.
Are there tropical nights in Razlog?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Razlog.
What was the most extreme apparent temperature in Razlog?
In Razlog, between 1940 and 2025, the highest apparent temperature reached 32.7 °C on 11 July 1980, and the lowest was -34.4 °C on 3 January 1940.
Compare Razlog with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Razlog