Kalix climate — normals and trends
Kalix (Sweden) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 2.1 °C and it receives 622 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 (15.2 °C on average) and the coldest is February (-9.5 °C). Rainfall peaks in August.
Kalix averages 179 frost days, 0 hot days (≥ 30 °C) and 118 rainy days per year.
Kalix has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 189 to 169 per year over the period.
The hottest day of the period reached 27.2 °C (on 24 July 2025) and the coldest -35.0 °C (on 28 January 1999).
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
KalixNorrbotten County
- coords
- 65.85°, 23.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.1°C
Average daily high
4.1°C
Average daily low
0.0°C
Annual rainfall
622mm
Sunshine / day
7.5h
Mean relative humidity
82%
Average peak wind
22.6km/h
Seasonal range
24.7°C
Frost days (< 0 °C)
179 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
118 d/yr
Annual snowfall
158.6 cm
Average feels-like high
0.1 °C
Average feels-like low
-4.4 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.25 · 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
27.2 °C
24 July 2025
Coldest day
-35.0 °C
28 January 1999
Wettest day
44 mm
19 June 1946
Windiest day
61.4 km/h
22 December 2004
Strongest gust
102.6 km/h
2 November 2020
Hottest feels-like
30.4 °C
31 July 2025
Coldest feels-like
-40.2 °C
28 January 1999
Snowiest day
20.9 cm
18 December 1966
Sunniest day
20.7 h
20 June 2020
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 | -5.7 °C | +1.2 °C | 54 mm | +12 mm |
| Feb | -2.7 °C | +4.7 °C | 33 mm | -2 mm |
| Mar | -0.3 °C | +3.2 °C | 25 mm | -7 mm |
| Apr | 3.0 °C | +1.4 °C | 14 mm | -22 mm |
| May | 7.8 °C | +0.9 °C | 35 mm | -4 mm |
| Jun | 13.4 °C | +0.9 °C | 82 mm | +31 mm |
| Jul | 21.1 °C | +4.0 °C | 53 mm | -8 mm |
| Aug | 17.1 °C | +1.1 °C | 98 mm | +25 mm |
| Sep | 13.6 °C | +2.3 °C | 114 mm | +45 mm |
| Oct | 7.8 °C | +2.9 °C | 92 mm | +30 mm |
| Nov | -0.1 °C | -0.4 °C | 62 mm | -2 mm |
| Dec | -0.9 °C | +2.5 °C | 74 mm | +16 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 Kalix?
Kalix has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 2.1 °C and it receives 622 mm of precipitation per year.
What is the hottest day ever recorded in Kalix?
The hottest day measured in Kalix between 1940 and 2025 was 24 July 2025, reaching 27.2 °C.
What is the coldest day in Kalix?
The coldest day measured in Kalix between 1940 and 2025 was 28 January 1999, at -35.0 °C.
Does it snow in Kalix?
Yes. Kalix gets on average 158.6 cm of snow per year and has around 179 frost days.
Has the climate of Kalix warmed?
Yes: Kalix warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kalix?
The wettest day measured in Kalix between 1940 and 2025 was 19 June 1946, with 44 mm of rain in 24 hours.
What was the windiest day in Kalix?
The windiest day measured in Kalix between 1940 and 2025 was 22 December 2004, with winds reaching 61.4 km/h.
What is the warmest month in Kalix?
The warmest month in Kalix is July (15.2 °C on average); the coldest is February (-9.5 °C).
How much does it rain in Kalix?
Kalix receives on average 622 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in Kalix?
Kalix gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kalix?
The heaviest 24-hour snowfall measured in Kalix between 1940 and 2025 was 18 December 1966, with 20.9 cm.
Are there tropical nights in Kalix?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kalix.
What was the most extreme apparent temperature in Kalix?
In Kalix, between 1940 and 2025, the highest apparent temperature reached 30.4 °C on 31 July 2025, and the lowest was -40.2 °C on 28 January 1999.
Compare Kalix with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kalix