Děčín climate — normals and trends
Děčín (Czechia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.6 °C and it receives 711 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 (17.2 °C on average) and the coldest is January (-2.6 °C). Rainfall peaks in July.
Děčín averages 113 frost days, 3 hot days (≥ 30 °C) and 142 rainy days per year.
Děčín has warmed by +2.5 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 135 to 91 per year over the period.
The hottest day of the period reached 36.4 °C (on 20 August 2012) and the coldest -30.9 °C (on 7 January 1947).
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
DěčínÚstí nad Labem Region
- coords
- 50.78°, 14.21°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.6°C
Average daily high
11.3°C
Average daily low
3.8°C
Annual rainfall
711mm
Sunshine / day
7.5h
Mean relative humidity
80%
Average peak wind
15.3km/h
Seasonal range
19.8°C
Frost days (< 0 °C)
113 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
142 d/yr
Annual snowfall
72.9 cm
Average feels-like high
8.8 °C
Average feels-like low
1.0 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.52 · 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
36.4 °C
20 August 2012
Coldest day
-30.9 °C
7 January 1947
Wettest day
61 mm
8 July 1954
Windiest day
43.8 km/h
21 October 2021
Strongest gust
122.8 km/h
18 January 2007
Hottest feels-like
37.9 °C
19 August 1943
Coldest feels-like
-35.9 °C
7 January 1947
Snowiest day
17.6 cm
23 April 1980
Sunniest day
16.0 h
18 June 2000
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 | +3.1 °C | 62 mm | +17 mm |
| Feb | 2.7 °C | +1.1 °C | 11 mm | -30 mm |
| Mar | 10.5 °C | +4.2 °C | 31 mm | -17 mm |
| Apr | 15.4 °C | +3.5 °C | 39 mm | -14 mm |
| May | 17.0 °C | +0.3 °C | 63 mm | -11 mm |
| Jun | 24.0 °C | +4.0 °C | 55 mm | -27 mm |
| Jul | 23.2 °C | +1.4 °C | 118 mm | +29 mm |
| Aug | 24.2 °C | +2.5 °C | 45 mm | -35 mm |
| Sep | 19.5 °C | +2.0 °C | 97 mm | +41 mm |
| Oct | 11.3 °C | -0.5 °C | 63 mm | +16 mm |
| Nov | 5.8 °C | +0.6 °C | 37 mm | -11 mm |
| Dec | 3.1 °C | +1.7 °C | 25 mm | -23 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 Děčín?
Děčín has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.6 °C and it receives 711 mm of precipitation per year.
What is the hottest day ever recorded in Děčín?
The hottest day measured in Děčín between 1940 and 2025 was 20 August 2012, reaching 36.4 °C.
What is the coldest day in Děčín?
The coldest day measured in Děčín between 1940 and 2025 was 7 January 1947, at -30.9 °C.
Does it snow in Děčín?
Yes. Děčín gets on average 72.9 cm of snow per year and has around 113 frost days.
Has the climate of Děčín warmed?
Yes: Děčín warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Děčín?
The wettest day measured in Děčín between 1940 and 2025 was 8 July 1954, with 61 mm of rain in 24 hours.
What was the windiest day in Děčín?
The windiest day measured in Děčín between 1940 and 2025 was 21 October 2021, with winds reaching 43.8 km/h.
What is the warmest month in Děčín?
The warmest month in Děčín is July (17.2 °C on average); the coldest is January (-2.6 °C).
How much does it rain in Děčín?
Děčín receives on average 711 mm of precipitation per year, spread over about 142 rainy days.
Is it sunny in Děčín?
Děčín gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Děčín?
The heaviest 24-hour snowfall measured in Děčín between 1940 and 2025 was 23 April 1980, with 17.6 cm.
Are there tropical nights in Děčín?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Děčín.
What was the most extreme apparent temperature in Děčín?
In Děčín, between 1940 and 2025, the highest apparent temperature reached 37.9 °C on 19 August 1943, and the lowest was -35.9 °C on 7 January 1947.
Compare Děčín with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Děčín