Konstanz climate — normals and trends
Konstanz (Germany) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.2 °C and it receives 1,115 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 (18.7 °C on average) and the coldest is January (-0.7 °C). Rainfall peaks in July.
Konstanz averages 78 frost days, 3 hot days (≥ 30 °C) and 164 rainy days per year.
Konstanz has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 105 to 51 per year over the period.
The hottest day of the period reached 34.8 °C (on 10 August 2003) and the coldest -24.3 °C (on 6 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
KonstanzBaden-Wurttemberg
- coords
- 47.66°, 9.18°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.2°C
Average daily high
12.6°C
Average daily low
6.2°C
Annual rainfall
1,115mm
Sunshine / day
8.5h
Mean relative humidity
79%
Average peak wind
13.4km/h
Seasonal range
19.4°C
Frost days (< 0 °C)
78 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
164 d/yr
Annual snowfall
81.9 cm
Average feels-like high
10.7 °C
Average feels-like low
3.9 °C
Average peak gust
28.5 km/h
Tropical nights (≥ 20 °C)
3 d/yr
Solar radiation
12.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.56 · 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
34.8 °C
10 August 2003
Coldest day
-24.3 °C
6 January 1947
Wettest day
72 mm
11 July 1956
Windiest day
51.9 km/h
26 December 1999
Strongest gust
126.0 km/h
27 February 1990
Hottest feels-like
41.2 °C
6 July 1957
Coldest feels-like
-31.2 °C
10 February 1956
Snowiest day
23.3 cm
4 March 2006
Sunniest day
15.0 h
25 June 2023
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 | 4.1 °C | +2.4 °C | 88 mm | +18 mm |
| Feb | 4.9 °C | +1.1 °C | 33 mm | -34 mm |
| Mar | 10.7 °C | +2.3 °C | 55 mm | -18 mm |
| Apr | 16.0 °C | +3.3 °C | 43 mm | -46 mm |
| May | 18.2 °C | +1.0 °C | 116 mm | -1 mm |
| Jun | 25.9 °C | +5.2 °C | 63 mm | -65 mm |
| Jul | 23.4 °C | +0.7 °C | 185 mm | +57 mm |
| Aug | 24.5 °C | +2.3 °C | 182 mm | +62 mm |
| Sep | 18.7 °C | +0.2 °C | 153 mm | +64 mm |
| Oct | 13.0 °C | -0.1 °C | 72 mm | -3 mm |
| Nov | 6.9 °C | +0.1 °C | 89 mm | +6 mm |
| Dec | 3.3 °C | +0.5 °C | 22 mm | -55 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 Konstanz?
Konstanz has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.2 °C and it receives 1,115 mm of precipitation per year.
What is the hottest day ever recorded in Konstanz?
The hottest day measured in Konstanz between 1940 and 2025 was 10 August 2003, reaching 34.8 °C.
What is the coldest day in Konstanz?
The coldest day measured in Konstanz between 1940 and 2025 was 6 January 1947, at -24.3 °C.
Does it snow in Konstanz?
Yes. Konstanz gets on average 81.9 cm of snow per year and has around 78 frost days.
Has the climate of Konstanz warmed?
Yes: Konstanz warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Konstanz?
The wettest day measured in Konstanz between 1940 and 2025 was 11 July 1956, with 72 mm of rain in 24 hours.
What was the windiest day in Konstanz?
The windiest day measured in Konstanz between 1940 and 2025 was 26 December 1999, with winds reaching 51.9 km/h.
What is the warmest month in Konstanz?
The warmest month in Konstanz is July (18.7 °C on average); the coldest is January (-0.7 °C).
How much does it rain in Konstanz?
Konstanz receives on average 1,115 mm of precipitation per year, spread over about 164 rainy days.
Is it sunny in Konstanz?
Konstanz gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Konstanz?
The heaviest 24-hour snowfall measured in Konstanz between 1940 and 2025 was 4 March 2006, with 23.3 cm.
Are there tropical nights in Konstanz?
Yes: Konstanz has on average 3 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Konstanz?
In Konstanz, between 1940 and 2025, the highest apparent temperature reached 41.2 °C on 6 July 1957, and the lowest was -31.2 °C on 10 February 1956.
Compare Konstanz with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Konstanz