Stenungsund climate — normals and trends
Stenungsund (Sweden) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.7 °C and it receives 889 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 (16.5 °C on average) and the coldest is February (-0.6 °C). Rainfall peaks in October.
Stenungsund averages 70 frost days, 0 hot days (≥ 30 °C) and 146 rainy days per year.
Stenungsund has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 90 to 50 per year over the period.
The hottest day of the period reached 28.5 °C (on 31 July 2018) and the coldest -21.2 °C (on 28 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
StenungsundVästra Götaland County
- coords
- 58.07°, 11.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.7°C
Average daily high
9.6°C
Average daily low
5.8°C
Annual rainfall
889mm
Sunshine / day
8.0h
Mean relative humidity
81%
Average peak wind
24.5km/h
Seasonal range
17.1°C
Frost days (< 0 °C)
70 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
146 d/yr
Annual snowfall
66.3 cm
Average feels-like high
6.3 °C
Average feels-like low
1.8 °C
Average peak gust
41.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.32 · 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
28.5 °C
31 July 2018
Coldest day
-21.2 °C
28 January 1942
Wettest day
51 mm
17 July 1958
Windiest day
76.9 km/h
22 September 1969
Strongest gust
134.3 km/h
22 September 1969
Hottest feels-like
30.4 °C
26 July 2014
Coldest feels-like
-29.3 °C
10 January 1987
Snowiest day
18.8 cm
4 April 1998
Sunniest day
17.3 h
19 June 2025
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 | 4.1 °C | +2.8 °C | 112 mm | +42 mm |
| Feb | 2.5 °C | +1.4 °C | 43 mm | -9 mm |
| Mar | 6.6 °C | +3.0 °C | 31 mm | -17 mm |
| Apr | 11.1 °C | +3.2 °C | 30 mm | -20 mm |
| May | 13.1 °C | +0.1 °C | 47 mm | -8 mm |
| Jun | 16.3 °C | -0.2 °C | 71 mm | +1 mm |
| Jul | 21.2 °C | +2.7 °C | 64 mm | -18 mm |
| Aug | 18.6 °C | +0.3 °C | 61 mm | -35 mm |
| Sep | 16.9 °C | +1.8 °C | 131 mm | +37 mm |
| Oct | 11.8 °C | +1.1 °C | 103 mm | +1 mm |
| Nov | 7.1 °C | +1.0 °C | 98 mm | +6 mm |
| Dec | 6.2 °C | +3.0 °C | 97 mm | +18 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 Stenungsund?
Stenungsund has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.7 °C and it receives 889 mm of precipitation per year.
What is the hottest day ever recorded in Stenungsund?
The hottest day measured in Stenungsund between 1940 and 2025 was 31 July 2018, reaching 28.5 °C.
What is the coldest day in Stenungsund?
The coldest day measured in Stenungsund between 1940 and 2025 was 28 January 1942, at -21.2 °C.
Does it snow in Stenungsund?
Yes. Stenungsund gets on average 66.3 cm of snow per year and has around 70 frost days.
Has the climate of Stenungsund warmed?
Yes: Stenungsund warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Stenungsund?
The wettest day measured in Stenungsund between 1940 and 2025 was 17 July 1958, with 51 mm of rain in 24 hours.
What was the windiest day in Stenungsund?
The windiest day measured in Stenungsund between 1940 and 2025 was 22 September 1969, with winds reaching 76.9 km/h.
What is the warmest month in Stenungsund?
The warmest month in Stenungsund is July (16.5 °C on average); the coldest is February (-0.6 °C).
How much does it rain in Stenungsund?
Stenungsund receives on average 889 mm of precipitation per year, spread over about 146 rainy days.
Is it sunny in Stenungsund?
Stenungsund gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Stenungsund?
The heaviest 24-hour snowfall measured in Stenungsund between 1940 and 2025 was 4 April 1998, with 18.8 cm.
Are there tropical nights in Stenungsund?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Stenungsund.
What was the most extreme apparent temperature in Stenungsund?
In Stenungsund, between 1940 and 2025, the highest apparent temperature reached 30.4 °C on 26 July 2014, and the lowest was -29.3 °C on 10 January 1987.
Compare Stenungsund with another city
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Nearby cities
The climate around Stenungsund