Koblenz climate — normals and trends
Koblenz (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.1 °C and it receives 667 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 (17.6 °C on average) and the coldest is January (0.6 °C). Rainfall peaks in May.
Koblenz averages 69 frost days, 4 hot days (≥ 30 °C) and 139 rainy days per year.
Koblenz has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 86 to 52 per year over the period.
The hottest day of the period reached 37.4 °C (on 25 July 2019) and the coldest -24.2 °C (on 18 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
KoblenzRhineland-Palatinate
- coords
- 50.35°, 7.58°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.1°C
Average daily high
12.6°C
Average daily low
5.7°C
Annual rainfall
667mm
Sunshine / day
7.4h
Mean relative humidity
79%
Average peak wind
16.4km/h
Seasonal range
17.0°C
Frost days (< 0 °C)
69 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
38.2 cm
Average feels-like high
10.1 °C
Average feels-like low
2.9 °C
Average peak gust
36.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.44 · 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
37.4 °C
25 July 2019
Coldest day
-24.2 °C
18 January 1940
Wettest day
54 mm
2 June 1961
Windiest day
48.3 km/h
24 November 1984
Strongest gust
125.3 km/h
18 January 2007
Hottest feels-like
39.1 °C
14 August 2025
Coldest feels-like
-30.1 °C
18 January 1940
Snowiest day
15.8 cm
17 November 1972
Sunniest day
15.2 h
30 June 2018
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 | 4.8 °C | +2.1 °C | 105 mm | +55 mm |
| Feb | 5.2 °C | +1.0 °C | 36 mm | -10 mm |
| Mar | 12.4 °C | +4.0 °C | 15 mm | -37 mm |
| Apr | 16.0 °C | +3.4 °C | 35 mm | -17 mm |
| May | 19.8 °C | +2.9 °C | 42 mm | -22 mm |
| Jun | 25.0 °C | +4.9 °C | 34 mm | -29 mm |
| Jul | 24.6 °C | +2.5 °C | 81 mm | +20 mm |
| Aug | 25.8 °C | +3.9 °C | 32 mm | -28 mm |
| Sep | 18.9 °C | +0.7 °C | 112 mm | +58 mm |
| Oct | 13.0 °C | +0.1 °C | 64 mm | +13 mm |
| Nov | 8.8 °C | +1.8 °C | 38 mm | -19 mm |
| Dec | 6.4 °C | +2.6 °C | 26 mm | -32 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 Koblenz?
Koblenz has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.1 °C and it receives 667 mm of precipitation per year.
What is the hottest day ever recorded in Koblenz?
The hottest day measured in Koblenz between 1940 and 2025 was 25 July 2019, reaching 37.4 °C.
What is the coldest day in Koblenz?
The coldest day measured in Koblenz between 1940 and 2025 was 18 January 1940, at -24.2 °C.
Does it snow in Koblenz?
Yes. Koblenz gets on average 38.2 cm of snow per year and has around 69 frost days.
Has the climate of Koblenz warmed?
Yes: Koblenz warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Koblenz?
The wettest day measured in Koblenz between 1940 and 2025 was 2 June 1961, with 54 mm of rain in 24 hours.
What was the windiest day in Koblenz?
The windiest day measured in Koblenz between 1940 and 2025 was 24 November 1984, with winds reaching 48.3 km/h.
What is the warmest month in Koblenz?
The warmest month in Koblenz is July (17.6 °C on average); the coldest is January (0.6 °C).
How much does it rain in Koblenz?
Koblenz receives on average 667 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Koblenz?
Koblenz gets on average 7.4 hours of sunshine per day, roughly 2,701 hours per year over 1940-2025.
What is the biggest single-day snowfall in Koblenz?
The heaviest 24-hour snowfall measured in Koblenz between 1940 and 2025 was 17 November 1972, with 15.8 cm.
Are there tropical nights in Koblenz?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Koblenz.
What was the most extreme apparent temperature in Koblenz?
In Koblenz, between 1940 and 2025, the highest apparent temperature reached 39.1 °C on 14 August 2025, and the lowest was -30.1 °C on 18 January 1940.
Compare Koblenz with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Koblenz