Sæby climate — normals and trends
Sæby (Denmark) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.5 °C and it receives 759 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 (16.4 °C on average) and the coldest is February (1.2 °C). Rainfall peaks in October.
Sæby averages 36 frost days, 0 hot days (≥ 30 °C) and 136 rainy days per year.
Sæby has warmed by +2.0 °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 55 to 17 per year over the period.
The hottest day of the period reached 24.4 °C (on 11 August 1975) and the coldest -13.9 °C (on 10 January 1987).
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
SæbyNorth Denmark
- coords
- 57.33°, 10.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.5°C
Average daily high
9.6°C
Average daily low
7.5°C
Annual rainfall
759mm
Sunshine / day
8.2h
Mean relative humidity
82%
Average peak wind
32.8km/h
Seasonal range
15.2°C
Frost days (< 0 °C)
36 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
136 d/yr
Annual snowfall
58.2 cm
Average feels-like high
5.8 °C
Average feels-like low
2.3 °C
Average peak gust
45.0 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
24.4 °C
11 August 1975
Coldest day
-13.9 °C
10 January 1987
Wettest day
74 mm
19 July 1987
Windiest day
84.8 km/h
8 January 2005
Strongest gust
125.6 km/h
8 January 2005
Hottest feels-like
26.9 °C
13 August 1997
Coldest feels-like
-24.5 °C
25 January 1942
Snowiest day
17.8 cm
11 February 1952
Sunniest day
17.0 h
7 June 1940
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 | 4.9 °C | +2.1 °C | 86 mm | +19 mm |
| Feb | 3.2 °C | +0.9 °C | 35 mm | -15 mm |
| Mar | 6.5 °C | +2.8 °C | 34 mm | -13 mm |
| Apr | 9.8 °C | +3.1 °C | 30 mm | -14 mm |
| May | 12.9 °C | +1.7 °C | 55 mm | +9 mm |
| Jun | 15.8 °C | +0.6 °C | 62 mm | +9 mm |
| Jul | 19.4 °C | +1.9 °C | 68 mm | +6 mm |
| Aug | 18.0 °C | +0.4 °C | 38 mm | -36 mm |
| Sep | 16.7 °C | +1.6 °C | 66 mm | -8 mm |
| Oct | 12.4 °C | +1.1 °C | 113 mm | +25 mm |
| Nov | 8.4 °C | +1.0 °C | 74 mm | -9 mm |
| Dec | 7.3 °C | +2.8 °C | 80 mm | +9 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 Sæby?
Sæby has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.5 °C and it receives 759 mm of precipitation per year.
What is the hottest day ever recorded in Sæby?
The hottest day measured in Sæby between 1940 and 2025 was 11 August 1975, reaching 24.4 °C.
What is the coldest day in Sæby?
The coldest day measured in Sæby between 1940 and 2025 was 10 January 1987, at -13.9 °C.
Does it snow in Sæby?
Yes. Sæby gets on average 58.2 cm of snow per year and has around 36 frost days.
Has the climate of Sæby warmed?
Yes: Sæby warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sæby?
The wettest day measured in Sæby between 1940 and 2025 was 19 July 1987, with 74 mm of rain in 24 hours.
What was the windiest day in Sæby?
The windiest day measured in Sæby between 1940 and 2025 was 8 January 2005, with winds reaching 84.8 km/h.
What is the warmest month in Sæby?
The warmest month in Sæby is August (16.4 °C on average); the coldest is February (1.2 °C).
How much does it rain in Sæby?
Sæby receives on average 759 mm of precipitation per year, spread over about 136 rainy days.
Is it sunny in Sæby?
Sæby gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sæby?
The heaviest 24-hour snowfall measured in Sæby between 1940 and 2025 was 11 February 1952, with 17.8 cm.
Are there tropical nights in Sæby?
Yes: Sæby has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sæby?
In Sæby, between 1940 and 2025, the highest apparent temperature reached 26.9 °C on 13 August 1997, and the lowest was -24.5 °C on 25 January 1942.
Compare Sæby with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sæby