Otterndorf climate — normals and trends
Otterndorf (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.1 °C and it receives 818 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 (17.1 °C on average) and the coldest is January (1.2 °C). Rainfall peaks in July.
Otterndorf averages 56 frost days, 2 hot days (≥ 30 °C) and 155 rainy days per year.
Otterndorf 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 74 to 38 per year over the period.
The hottest day of the period reached 35.5 °C (on 12 July 1941) and the coldest -23.5 °C (on 13 February 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
OtterndorfLower Saxony
- coords
- 53.81°, 8.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.1°C
Average daily high
12.1°C
Average daily low
6.3°C
Annual rainfall
818mm
Sunshine / day
7.4h
Mean relative humidity
81%
Average peak wind
20.4km/h
Seasonal range
15.9°C
Frost days (< 0 °C)
56 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
155 d/yr
Annual snowfall
31.7 cm
Average feels-like high
9.4 °C
Average feels-like low
3.1 °C
Average peak gust
41.1 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 = 0.42 · 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
12 July 1941
Coldest day
-23.5 °C
13 February 1940
Wettest day
64 mm
15 June 1942
Windiest day
61.0 km/h
14 January 1993
Strongest gust
131.8 km/h
23 February 1967
Hottest feels-like
37.2 °C
4 July 2015
Coldest feels-like
-28.8 °C
13 February 1940
Snowiest day
12.7 cm
19 March 2001
Sunniest day
16.6 h
23 June 2022
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 | 4.6 °C | +1.6 °C | 72 mm | +7 mm |
| Feb | 4.9 °C | +1.1 °C | 17 mm | -35 mm |
| Mar | 11.1 °C | +4.0 °C | 13 mm | -44 mm |
| Apr | 14.6 °C | +2.9 °C | 33 mm | -20 mm |
| May | 17.7 °C | +1.5 °C | 48 mm | -17 mm |
| Jun | 21.1 °C | +2.0 °C | 113 mm | +38 mm |
| Jul | 21.8 °C | +1.1 °C | 128 mm | +39 mm |
| Aug | 22.6 °C | +1.7 °C | 53 mm | -32 mm |
| Sep | 19.5 °C | +1.9 °C | 59 mm | -12 mm |
| Oct | 13.5 °C | +0.6 °C | 122 mm | +51 mm |
| Nov | 8.7 °C | +1.1 °C | 79 mm | +10 mm |
| Dec | 6.9 °C | +2.4 °C | 34 mm | -34 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 Otterndorf?
Otterndorf has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.1 °C and it receives 818 mm of precipitation per year.
What is the hottest day ever recorded in Otterndorf?
The hottest day measured in Otterndorf between 1940 and 2025 was 12 July 1941, reaching 35.5 °C.
What is the coldest day in Otterndorf?
The coldest day measured in Otterndorf between 1940 and 2025 was 13 February 1940, at -23.5 °C.
Does it snow in Otterndorf?
Yes. Otterndorf gets on average 31.7 cm of snow per year and has around 56 frost days.
Has the climate of Otterndorf warmed?
Yes: Otterndorf warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Otterndorf?
The wettest day measured in Otterndorf between 1940 and 2025 was 15 June 1942, with 64 mm of rain in 24 hours.
What was the windiest day in Otterndorf?
The windiest day measured in Otterndorf between 1940 and 2025 was 14 January 1993, with winds reaching 61.0 km/h.
What is the warmest month in Otterndorf?
The warmest month in Otterndorf is July (17.1 °C on average); the coldest is January (1.2 °C).
How much does it rain in Otterndorf?
Otterndorf receives on average 818 mm of precipitation per year, spread over about 155 rainy days.
Is it sunny in Otterndorf?
Otterndorf 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 Otterndorf?
The heaviest 24-hour snowfall measured in Otterndorf between 1940 and 2025 was 19 March 2001, with 12.7 cm.
Are there tropical nights in Otterndorf?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Otterndorf.
What was the most extreme apparent temperature in Otterndorf?
In Otterndorf, between 1940 and 2025, the highest apparent temperature reached 37.2 °C on 4 July 2015, and the lowest was -28.8 °C on 13 February 1940.
Compare Otterndorf with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Otterndorf