Kuusamo climate — normals and trends
Kuusamo (Finland) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 0.4 °C and it receives 589 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 (14.7 °C on average) and the coldest is January (-12.2 °C). Rainfall peaks in July.
Kuusamo averages 205 frost days, 0 hot days (≥ 30 °C) and 130 rainy days per year.
Kuusamo has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 212 to 198 per year over the period.
The hottest day of the period reached 29.1 °C (on 8 July 1972) and the coldest -38.0 °C (on 7 January 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
KuusamoNorth Ostrobothnia
- coords
- 65.96°, 29.19°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
0.4°C
Average daily high
3.1°C
Average daily low
-2.5°C
Annual rainfall
589mm
Sunshine / day
6.2h
Mean relative humidity
82%
Average peak wind
15.9km/h
Seasonal range
26.9°C
Frost days (< 0 °C)
205 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
130 d/yr
Annual snowfall
170.6 cm
Average feels-like high
-0.6 °C
Average feels-like low
-6.4 °C
Average peak gust
33.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
7.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.19 · 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
29.1 °C
8 July 1972
Coldest day
-38.0 °C
7 January 1985
Wettest day
49 mm
26 August 1959
Windiest day
44.8 km/h
28 May 2009
Strongest gust
94.7 km/h
18 July 1955
Hottest feels-like
30.5 °C
31 July 2025
Coldest feels-like
-43.6 °C
28 January 1999
Snowiest day
22.3 cm
26 May 1986
Sunniest day
21.4 h
15 June 2023
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 | -7.4 °C | +2.3 °C | 48 mm | +18 mm |
| Feb | -4.6 °C | +4.5 °C | 14 mm | -12 mm |
| Mar | -0.3 °C | +3.6 °C | 33 mm | +4 mm |
| Apr | 2.8 °C | +0.8 °C | 19 mm | -18 mm |
| May | 8.7 °C | +0.6 °C | 99 mm | +52 mm |
| Jun | 13.9 °C | -1.0 °C | 87 mm | +17 mm |
| Jul | 21.5 °C | +3.7 °C | 82 mm | +2 mm |
| Aug | 16.5 °C | +1.1 °C | 96 mm | +20 mm |
| Sep | 13.9 °C | +4.3 °C | 63 mm | +3 mm |
| Oct | 5.3 °C | +2.9 °C | 56 mm | +3 mm |
| Nov | -1.8 °C | +1.4 °C | 75 mm | +30 mm |
| Dec | -3.9 °C | +3.1 °C | 71 mm | +35 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 Kuusamo?
Kuusamo has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 0.4 °C and it receives 589 mm of precipitation per year.
What is the hottest day ever recorded in Kuusamo?
The hottest day measured in Kuusamo between 1940 and 2025 was 8 July 1972, reaching 29.1 °C.
What is the coldest day in Kuusamo?
The coldest day measured in Kuusamo between 1940 and 2025 was 7 January 1985, at -38.0 °C.
Does it snow in Kuusamo?
Yes. Kuusamo gets on average 170.6 cm of snow per year and has around 205 frost days.
Has the climate of Kuusamo warmed?
Yes: Kuusamo warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kuusamo?
The wettest day measured in Kuusamo between 1940 and 2025 was 26 August 1959, with 49 mm of rain in 24 hours.
What was the windiest day in Kuusamo?
The windiest day measured in Kuusamo between 1940 and 2025 was 28 May 2009, with winds reaching 44.8 km/h.
What is the warmest month in Kuusamo?
The warmest month in Kuusamo is July (14.7 °C on average); the coldest is January (-12.2 °C).
How much does it rain in Kuusamo?
Kuusamo receives on average 589 mm of precipitation per year, spread over about 130 rainy days.
Is it sunny in Kuusamo?
Kuusamo gets on average 6.2 hours of sunshine per day, roughly 2,263 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kuusamo?
The heaviest 24-hour snowfall measured in Kuusamo between 1940 and 2025 was 26 May 1986, with 22.3 cm.
Are there tropical nights in Kuusamo?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kuusamo.
What was the most extreme apparent temperature in Kuusamo?
In Kuusamo, between 1940 and 2025, the highest apparent temperature reached 30.5 °C on 31 July 2025, and the lowest was -43.6 °C on 28 January 1999.
Compare Kuusamo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kuusamo