Tvarditsa climate — normals and trends
Tvarditsa (Bulgaria) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.5 °C and it receives 796 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 (21.1 °C on average) and the coldest is January (-0.9 °C). Rainfall peaks in May.
Tvarditsa averages 84 frost days, 11 hot days (≥ 30 °C) and 122 rainy days per year.
Tvarditsa 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 99 to 69 per year over the period.
The hottest day of the period reached 38.8 °C (on 5 July 2000) and the coldest -24.3 °C (on 11 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
TvarditsaSliven
- coords
- 42.70°, 25.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.5°C
Average daily high
14.9°C
Average daily low
6.5°C
Annual rainfall
796mm
Sunshine / day
9.4h
Mean relative humidity
76%
Average peak wind
11.5km/h
Seasonal range
22.0°C
Frost days (< 0 °C)
84 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
122 d/yr
Annual snowfall
84.8 cm
Average feels-like high
13.7 °C
Average feels-like low
4.7 °C
Average peak gust
31.9 km/h
Tropical nights (≥ 20 °C)
3 d/yr
Solar radiation
14.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
38.8 °C
5 July 2000
Coldest day
-24.3 °C
11 January 1940
Wettest day
65 mm
27 October 1941
Windiest day
36.7 km/h
1 January 1971
Strongest gust
121.3 km/h
1 January 1971
Hottest feels-like
40.9 °C
24 July 2007
Coldest feels-like
-29.6 °C
11 January 1940
Snowiest day
27.7 cm
2 January 1969
Sunniest day
14.9 h
26 June 1942
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 | 7.8 °C | +5.2 °C | 22 mm | -31 mm |
| Feb | 2.9 °C | -2.0 °C | 34 mm | -18 mm |
| Mar | 14.5 °C | +5.7 °C | 42 mm | -17 mm |
| Apr | 14.7 °C | 0.0 °C | 71 mm | -8 mm |
| May | 19.3 °C | -0.2 °C | 121 mm | +17 mm |
| Jun | 28.0 °C | +4.4 °C | 34 mm | -63 mm |
| Jul | 31.6 °C | +5.5 °C | 53 mm | -20 mm |
| Aug | 28.8 °C | +2.4 °C | 55 mm | +3 mm |
| Sep | 24.3 °C | +2.1 °C | 24 mm | -22 mm |
| Oct | 14.9 °C | -1.2 °C | 173 mm | +120 mm |
| Nov | 13.4 °C | +3.7 °C | 104 mm | +42 mm |
| Dec | 6.9 °C | +2.5 °C | 35 mm | -30 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 Tvarditsa?
Tvarditsa has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 796 mm of precipitation per year.
What is the hottest day ever recorded in Tvarditsa?
The hottest day measured in Tvarditsa between 1940 and 2025 was 5 July 2000, reaching 38.8 °C.
What is the coldest day in Tvarditsa?
The coldest day measured in Tvarditsa between 1940 and 2025 was 11 January 1940, at -24.3 °C.
Does it snow in Tvarditsa?
Yes. Tvarditsa gets on average 84.8 cm of snow per year and has around 84 frost days.
Has the climate of Tvarditsa warmed?
Yes: Tvarditsa warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tvarditsa?
The wettest day measured in Tvarditsa between 1940 and 2025 was 27 October 1941, with 65 mm of rain in 24 hours.
What was the windiest day in Tvarditsa?
The windiest day measured in Tvarditsa between 1940 and 2025 was 1 January 1971, with winds reaching 36.7 km/h.
What is the warmest month in Tvarditsa?
The warmest month in Tvarditsa is July (21.1 °C on average); the coldest is January (-0.9 °C).
How much does it rain in Tvarditsa?
Tvarditsa receives on average 796 mm of precipitation per year, spread over about 122 rainy days.
Is it sunny in Tvarditsa?
Tvarditsa 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 Tvarditsa?
The heaviest 24-hour snowfall measured in Tvarditsa between 1940 and 2025 was 2 January 1969, with 27.7 cm.
Are there tropical nights in Tvarditsa?
Yes: Tvarditsa has on average 3 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tvarditsa?
In Tvarditsa, between 1940 and 2025, the highest apparent temperature reached 40.9 °C on 24 July 2007, and the lowest was -29.6 °C on 11 January 1940.
Compare Tvarditsa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tvarditsa