Itzehoe climate — normals and trends
Itzehoe (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.8 °C and it receives 784 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 (17.0 °C on average) and the coldest is January (0.7 °C). Rainfall peaks in July.
Itzehoe averages 68 frost days, 2 hot days (≥ 30 °C) and 148 rainy days per year.
Itzehoe 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 87 to 49 per year over the period.
The hottest day of the period reached 35.5 °C (on 20 July 2022) and the coldest -23.7 °C (on 16 February 1956).
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
ItzehoeSchleswig-Holstein
- coords
- 53.92°, 9.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.8°C
Average daily high
12.0°C
Average daily low
5.6°C
Annual rainfall
784mm
Sunshine / day
7.5h
Mean relative humidity
82%
Average peak wind
18.8km/h
Seasonal range
16.3°C
Frost days (< 0 °C)
68 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
148 d/yr
Annual snowfall
35.2 cm
Average feels-like high
9.4 °C
Average feels-like low
2.6 °C
Average peak gust
38.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.41 · 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
35.5 °C
20 July 2022
Coldest day
-23.7 °C
16 February 1956
Wettest day
64 mm
18 July 2002
Windiest day
57.2 km/h
14 January 1993
Strongest gust
122.8 km/h
14 January 1993
Hottest feels-like
36.5 °C
4 July 2015
Coldest feels-like
-28.7 °C
16 February 1956
Snowiest day
16.5 cm
19 March 2001
Sunniest day
16.7 h
29 June 2018
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 4.5 °C | +1.8 °C | 67 mm | +5 mm |
| Feb | 4.7 °C | +1.2 °C | 19 mm | -31 mm |
| Mar | 11.3 °C | +4.3 °C | 15 mm | -40 mm |
| Apr | 14.9 °C | +3.2 °C | 34 mm | -20 mm |
| May | 17.8 °C | +1.5 °C | 55 mm | -11 mm |
| Jun | 21.0 °C | +1.7 °C | 100 mm | +28 mm |
| Jul | 22.2 °C | +1.3 °C | 150 mm | +65 mm |
| Aug | 22.6 °C | +1.7 °C | 35 mm | -47 mm |
| Sep | 19.4 °C | +1.8 °C | 57 mm | -7 mm |
| Oct | 13.3 °C | +0.5 °C | 116 mm | +51 mm |
| Nov | 8.4 °C | +1.1 °C | 69 mm | +5 mm |
| Dec | 6.7 °C | +2.6 °C | 34 mm | -31 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 Itzehoe?
Itzehoe has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.8 °C and it receives 784 mm of precipitation per year.
What is the hottest day ever recorded in Itzehoe?
The hottest day measured in Itzehoe between 1940 and 2025 was 20 July 2022, reaching 35.5 °C.
What is the coldest day in Itzehoe?
The coldest day measured in Itzehoe between 1940 and 2025 was 16 February 1956, at -23.7 °C.
Does it snow in Itzehoe?
Yes. Itzehoe gets on average 35.2 cm of snow per year and has around 68 frost days.
Has the climate of Itzehoe warmed?
Yes: Itzehoe warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Itzehoe?
The wettest day measured in Itzehoe between 1940 and 2025 was 18 July 2002, with 64 mm of rain in 24 hours.
What was the windiest day in Itzehoe?
The windiest day measured in Itzehoe between 1940 and 2025 was 14 January 1993, with winds reaching 57.2 km/h.
What is the warmest month in Itzehoe?
The warmest month in Itzehoe is July (17.0 °C on average); the coldest is January (0.7 °C).
How much does it rain in Itzehoe?
Itzehoe receives on average 784 mm of precipitation per year, spread over about 148 rainy days.
Is it sunny in Itzehoe?
Itzehoe 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 Itzehoe?
The heaviest 24-hour snowfall measured in Itzehoe between 1940 and 2025 was 19 March 2001, with 16.5 cm.
Are there tropical nights in Itzehoe?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Itzehoe.
What was the most extreme apparent temperature in Itzehoe?
In Itzehoe, between 1940 and 2025, the highest apparent temperature reached 36.5 °C on 4 July 2015, and the lowest was -28.7 °C on 16 February 1956.
Compare Itzehoe with another city
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Nearby cities
The climate around Itzehoe