Grömitz climate — normals and trends
Grömitz (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.9 °C and it receives 650 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 August (17.4 °C on average) and the coldest is January (1.2 °C). Rainfall peaks in August.
Grömitz averages 47 frost days, 0 hot days (≥ 30 °C) and 137 rainy days per year.
Grömitz has warmed by +2.6 °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 70 to 24 per year over the period.
The hottest day of the period reached 30.0 °C (on 5 August 1994) and the coldest -14.3 °C (on 25 January 1942).
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
GrömitzSchleswig-Holstein
- coords
- 54.15°, 10.96°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.9°C
Average daily high
10.7°C
Average daily low
7.1°C
Annual rainfall
650mm
Sunshine / day
7.8h
Mean relative humidity
81%
Average peak wind
28.0km/h
Seasonal range
16.2°C
Frost days (< 0 °C)
47 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
38.2 cm
Average feels-like high
7.3 °C
Average feels-like low
2.7 °C
Average peak gust
42.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.55 · 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
30.0 °C
5 August 1994
Coldest day
-14.3 °C
25 January 1942
Wettest day
56 mm
27 August 1946
Windiest day
76.3 km/h
14 January 1993
Strongest gust
133.9 km/h
3 December 1999
Hottest feels-like
31.7 °C
20 June 2000
Coldest feels-like
-23.2 °C
1 February 1940
Snowiest day
18.0 cm
19 March 2001
Sunniest day
16.5 h
24 June 2009
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 | 4.4 °C | +1.9 °C | 62 mm | +9 mm |
| Feb | 3.8 °C | +1.1 °C | 14 mm | -29 mm |
| Mar | 8.2 °C | +3.1 °C | 11 mm | -32 mm |
| Apr | 12.0 °C | +3.4 °C | 23 mm | -18 mm |
| May | 15.1 °C | +1.7 °C | 50 mm | +1 mm |
| Jun | 19.3 °C | +1.8 °C | 79 mm | +22 mm |
| Jul | 20.9 °C | +1.3 °C | 116 mm | +51 mm |
| Aug | 20.9 °C | +1.2 °C | 31 mm | -39 mm |
| Sep | 18.6 °C | +1.9 °C | 56 mm | -2 mm |
| Oct | 13.0 °C | +1.2 °C | 100 mm | +44 mm |
| Nov | 8.4 °C | +1.4 °C | 63 mm | +6 mm |
| Dec | 6.5 °C | +2.5 °C | 27 mm | -30 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 Grömitz?
Grömitz has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.9 °C and it receives 650 mm of precipitation per year.
What is the hottest day ever recorded in Grömitz?
The hottest day measured in Grömitz between 1940 and 2025 was 5 August 1994, reaching 30.0 °C.
What is the coldest day in Grömitz?
The coldest day measured in Grömitz between 1940 and 2025 was 25 January 1942, at -14.3 °C.
Does it snow in Grömitz?
Yes. Grömitz gets on average 38.2 cm of snow per year and has around 47 frost days.
Has the climate of Grömitz warmed?
Yes: Grömitz warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Grömitz?
The wettest day measured in Grömitz between 1940 and 2025 was 27 August 1946, with 56 mm of rain in 24 hours.
What was the windiest day in Grömitz?
The windiest day measured in Grömitz between 1940 and 2025 was 14 January 1993, with winds reaching 76.3 km/h.
What is the warmest month in Grömitz?
The warmest month in Grömitz is August (17.4 °C on average); the coldest is January (1.2 °C).
How much does it rain in Grömitz?
Grömitz receives on average 650 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Grömitz?
Grömitz gets on average 7.8 hours of sunshine per day, roughly 2,847 hours per year over 1940-2025.
What is the biggest single-day snowfall in Grömitz?
The heaviest 24-hour snowfall measured in Grömitz between 1940 and 2025 was 19 March 2001, with 18.0 cm.
Are there tropical nights in Grömitz?
Yes: Grömitz has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Grömitz?
In Grömitz, between 1940 and 2025, the highest apparent temperature reached 31.7 °C on 20 June 2000, and the lowest was -23.2 °C on 1 February 1940.
Compare Grömitz with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Grömitz