Schleswig climate — normals and trends
Schleswig (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.5 °C and it receives 750 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 (16.7 °C on average) and the coldest is January (0.7 °C). Rainfall peaks in July.
Schleswig averages 69 frost days, 1 hot days (≥ 30 °C) and 144 rainy days per year.
Schleswig has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 88 to 50 per year over the period.
The hottest day of the period reached 34.5 °C (on 20 July 2022) and the coldest -23.0 °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
SchleswigSchleswig-Holstein
- coords
- 54.52°, 9.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.5°C
Average daily high
11.5°C
Average daily low
5.5°C
Annual rainfall
750mm
Sunshine / day
7.6h
Mean relative humidity
83%
Average peak wind
20.4km/h
Seasonal range
16.0°C
Frost days (< 0 °C)
69 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
144 d/yr
Annual snowfall
37.2 cm
Average feels-like high
8.7 °C
Average feels-like low
2.4 °C
Average peak gust
40.6 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
+0.2 °C per decade · r² = 0.40 · 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
34.5 °C
20 July 2022
Coldest day
-23.0 °C
16 February 1956
Wettest day
70 mm
27 August 1946
Windiest day
67.2 km/h
3 December 1999
Strongest gust
129.2 km/h
3 December 1999
Hottest feels-like
35.6 °C
20 July 2022
Coldest feels-like
-28.2 °C
26 January 1942
Snowiest day
17.4 cm
26 January 1995
Sunniest day
16.8 h
1 July 2025
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 | 4.6 °C | +2.1 °C | 73 mm | +11 mm |
| Feb | 4.3 °C | +1.1 °C | 15 mm | -33 mm |
| Mar | 10.4 °C | +4.0 °C | 18 mm | -35 mm |
| Apr | 14.0 °C | +3.1 °C | 34 mm | -16 mm |
| May | 16.9 °C | +1.4 °C | 43 mm | -18 mm |
| Jun | 20.1 °C | +1.5 °C | 84 mm | +16 mm |
| Jul | 21.8 °C | +1.4 °C | 152 mm | +73 mm |
| Aug | 21.6 °C | +1.3 °C | 39 mm | -39 mm |
| Sep | 18.8 °C | +1.7 °C | 58 mm | -6 mm |
| Oct | 13.2 °C | +0.8 °C | 115 mm | +51 mm |
| Nov | 8.1 °C | +0.9 °C | 46 mm | -16 mm |
| Dec | 6.8 °C | +2.7 °C | 30 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 Schleswig?
Schleswig has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.5 °C and it receives 750 mm of precipitation per year.
What is the hottest day ever recorded in Schleswig?
The hottest day measured in Schleswig between 1940 and 2025 was 20 July 2022, reaching 34.5 °C.
What is the coldest day in Schleswig?
The coldest day measured in Schleswig between 1940 and 2025 was 16 February 1956, at -23.0 °C.
Does it snow in Schleswig?
Yes. Schleswig gets on average 37.2 cm of snow per year and has around 69 frost days.
Has the climate of Schleswig warmed?
Yes: Schleswig warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Schleswig?
The wettest day measured in Schleswig between 1940 and 2025 was 27 August 1946, with 70 mm of rain in 24 hours.
What was the windiest day in Schleswig?
The windiest day measured in Schleswig between 1940 and 2025 was 3 December 1999, with winds reaching 67.2 km/h.
What is the warmest month in Schleswig?
The warmest month in Schleswig is July (16.7 °C on average); the coldest is January (0.7 °C).
How much does it rain in Schleswig?
Schleswig receives on average 750 mm of precipitation per year, spread over about 144 rainy days.
Is it sunny in Schleswig?
Schleswig gets on average 7.6 hours of sunshine per day, roughly 2,774 hours per year over 1940-2025.
What is the biggest single-day snowfall in Schleswig?
The heaviest 24-hour snowfall measured in Schleswig between 1940 and 2025 was 26 January 1995, with 17.4 cm.
Are there tropical nights in Schleswig?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Schleswig.
What was the most extreme apparent temperature in Schleswig?
In Schleswig, between 1940 and 2025, the highest apparent temperature reached 35.6 °C on 20 July 2022, and the lowest was -28.2 °C on 26 January 1942.
Compare Schleswig with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Schleswig