Karlstad climate — normals and trends
Karlstad (Sweden) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.2 °C and it receives 718 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 (17.2 °C on average) and the coldest is January (-4.0 °C). Rainfall peaks in August.
Karlstad averages 127 frost days, 1 hot days (≥ 30 °C) and 127 rainy days per year.
Karlstad has warmed by +2.0 °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 142 to 112 per year over the period.
The hottest day of the period reached 33.9 °C (on 7 August 1975) and the coldest -30.6 °C (on 10 February 1985).
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
KarlstadVärmland County
- coords
- 59.38°, 13.50°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.2°C
Average daily high
9.5°C
Average daily low
2.8°C
Annual rainfall
718mm
Sunshine / day
7.8h
Mean relative humidity
79%
Average peak wind
16.0km/h
Seasonal range
21.2°C
Frost days (< 0 °C)
127 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
127 d/yr
Annual snowfall
105.7 cm
Average feels-like high
6.5 °C
Average feels-like low
-0.5 °C
Average peak gust
34.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.26 · 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
33.9 °C
7 August 1975
Coldest day
-30.6 °C
10 February 1985
Wettest day
49 mm
12 July 2023
Windiest day
43.6 km/h
29 September 1969
Strongest gust
96.1 km/h
15 September 1994
Hottest feels-like
34.9 °C
6 August 1975
Coldest feels-like
-35.6 °C
10 February 1985
Snowiest day
18.4 cm
6 November 1971
Sunniest day
18.0 h
20 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 | 0.9 °C | +2.6 °C | 100 mm | +49 mm |
| Feb | 1.6 °C | +2.7 °C | 24 mm | -15 mm |
| Mar | 7.8 °C | +4.5 °C | 13 mm | -24 mm |
| Apr | 12.9 °C | +3.8 °C | 54 mm | +10 mm |
| May | 15.3 °C | -0.1 °C | 45 mm | -9 mm |
| Jun | 18.9 °C | -0.5 °C | 82 mm | +12 mm |
| Jul | 23.7 °C | +2.6 °C | 120 mm | +39 mm |
| Aug | 19.8 °C | 0.0 °C | 65 mm | -23 mm |
| Sep | 17.3 °C | +2.0 °C | 103 mm | +32 mm |
| Oct | 10.4 °C | +0.9 °C | 94 mm | +30 mm |
| Nov | 5.2 °C | +1.6 °C | 55 mm | -8 mm |
| Dec | 3.9 °C | +3.8 °C | 52 mm | -4 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 Karlstad?
Karlstad has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.2 °C and it receives 718 mm of precipitation per year.
What is the hottest day ever recorded in Karlstad?
The hottest day measured in Karlstad between 1940 and 2025 was 7 August 1975, reaching 33.9 °C.
What is the coldest day in Karlstad?
The coldest day measured in Karlstad between 1940 and 2025 was 10 February 1985, at -30.6 °C.
Does it snow in Karlstad?
Yes. Karlstad gets on average 105.7 cm of snow per year and has around 127 frost days.
Has the climate of Karlstad warmed?
Yes: Karlstad warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Karlstad?
The wettest day measured in Karlstad between 1940 and 2025 was 12 July 2023, with 49 mm of rain in 24 hours.
What was the windiest day in Karlstad?
The windiest day measured in Karlstad between 1940 and 2025 was 29 September 1969, with winds reaching 43.6 km/h.
What is the warmest month in Karlstad?
The warmest month in Karlstad is July (17.2 °C on average); the coldest is January (-4.0 °C).
How much does it rain in Karlstad?
Karlstad receives on average 718 mm of precipitation per year, spread over about 127 rainy days.
Is it sunny in Karlstad?
Karlstad 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 Karlstad?
The heaviest 24-hour snowfall measured in Karlstad between 1940 and 2025 was 6 November 1971, with 18.4 cm.
Are there tropical nights in Karlstad?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Karlstad.
What was the most extreme apparent temperature in Karlstad?
In Karlstad, between 1940 and 2025, the highest apparent temperature reached 34.9 °C on 6 August 1975, and the lowest was -35.6 °C on 10 February 1985.
Compare Karlstad with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Karlstad