Trelleborg climate — normals and trends
Trelleborg (Sweden) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.1 °C and it receives 604 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 February (-0.2 °C). Rainfall peaks in August.
Trelleborg averages 79 frost days, 0 hot days (≥ 30 °C) and 127 rainy days per year.
Trelleborg has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 101 to 57 per year over the period.
The hottest day of the period reached 32.3 °C (on 9 August 1975) and the coldest -27.0 °C (on 26 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
TrelleborgSkåne County
- coords
- 55.38°, 13.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.1°C
Average daily high
10.9°C
Average daily low
5.2°C
Annual rainfall
604mm
Sunshine / day
7.8h
Mean relative humidity
81%
Average peak wind
22.4km/h
Seasonal range
17.3°C
Frost days (< 0 °C)
79 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
127 d/yr
Annual snowfall
51.3 cm
Average feels-like high
7.7 °C
Average feels-like low
1.7 °C
Average peak gust
42.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °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
32.3 °C
9 August 1975
Coldest day
-27.0 °C
26 January 1942
Wettest day
50 mm
24 July 1986
Windiest day
69.5 km/h
17 October 1967
Strongest gust
128.2 km/h
3 December 1999
Hottest feels-like
34.3 °C
16 July 2021
Coldest feels-like
-32.1 °C
26 January 1942
Snowiest day
15.5 cm
3 January 1976
Sunniest day
16.4 h
24 June 2009
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 | 4.4 °C | +2.7 °C | 59 mm | +8 mm |
| Feb | 3.4 °C | +1.5 °C | 16 mm | -24 mm |
| Mar | 9.0 °C | +4.0 °C | 16 mm | -25 mm |
| Apr | 13.3 °C | +3.6 °C | 10 mm | -29 mm |
| May | 15.1 °C | +0.4 °C | 54 mm | +11 mm |
| Jun | 19.3 °C | +0.8 °C | 64 mm | +11 mm |
| Jul | 22.0 °C | +1.5 °C | 89 mm | +26 mm |
| Aug | 21.5 °C | +1.2 °C | 33 mm | -31 mm |
| Sep | 18.7 °C | +2.1 °C | 86 mm | +33 mm |
| Oct | 12.6 °C | +1.0 °C | 82 mm | +30 mm |
| Nov | 7.5 °C | +0.9 °C | 37 mm | -14 mm |
| Dec | 6.0 °C | +2.6 °C | 17 mm | -38 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 Trelleborg?
Trelleborg has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.1 °C and it receives 604 mm of precipitation per year.
What is the hottest day ever recorded in Trelleborg?
The hottest day measured in Trelleborg between 1940 and 2025 was 9 August 1975, reaching 32.3 °C.
What is the coldest day in Trelleborg?
The coldest day measured in Trelleborg between 1940 and 2025 was 26 January 1942, at -27.0 °C.
Does it snow in Trelleborg?
Yes. Trelleborg gets on average 51.3 cm of snow per year and has around 79 frost days.
Has the climate of Trelleborg warmed?
Yes: Trelleborg warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Trelleborg?
The wettest day measured in Trelleborg between 1940 and 2025 was 24 July 1986, with 50 mm of rain in 24 hours.
What was the windiest day in Trelleborg?
The windiest day measured in Trelleborg between 1940 and 2025 was 17 October 1967, with winds reaching 69.5 km/h.
What is the warmest month in Trelleborg?
The warmest month in Trelleborg is July (17.1 °C on average); the coldest is February (-0.2 °C).
How much does it rain in Trelleborg?
Trelleborg receives on average 604 mm of precipitation per year, spread over about 127 rainy days.
Is it sunny in Trelleborg?
Trelleborg 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 Trelleborg?
The heaviest 24-hour snowfall measured in Trelleborg between 1940 and 2025 was 3 January 1976, with 15.5 cm.
Are there tropical nights in Trelleborg?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Trelleborg.
What was the most extreme apparent temperature in Trelleborg?
In Trelleborg, between 1940 and 2025, the highest apparent temperature reached 34.3 °C on 16 July 2021, and the lowest was -32.1 °C on 26 January 1942.
Compare Trelleborg with another city
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Nearby cities
The climate around Trelleborg