Kopervik climate — normals and trends
Kopervik (Norway) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.1 °C and it receives 1,702 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 August (14.7 °C on average) and the coldest is February (2.3 °C). Rainfall peaks in October.
Kopervik averages 33 frost days, 0 hot days (≥ 30 °C) and 198 rainy days per year.
Kopervik 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 53 to 13 per year over the period.
The hottest day of the period reached 25.8 °C (on 29 July 2008) and the coldest -15.4 °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
KopervikRogaland
- coords
- 59.28°, 5.31°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.1°C
Average daily high
9.5°C
Average daily low
6.8°C
Annual rainfall
1,702mm
Sunshine / day
7.6h
Mean relative humidity
80%
Average peak wind
29.1km/h
Seasonal range
12.4°C
Frost days (< 0 °C)
33 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
198 d/yr
Annual snowfall
57.2 cm
Average feels-like high
5.9 °C
Average feels-like low
2.2 °C
Average peak gust
45.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.47 · 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
25.8 °C
29 July 2008
Coldest day
-15.4 °C
26 January 1942
Wettest day
69 mm
4 September 1990
Windiest day
80.5 km/h
22 September 1969
Strongest gust
141.5 km/h
10 January 2015
Hottest feels-like
27.3 °C
10 August 2004
Coldest feels-like
-22.9 °C
25 January 1942
Snowiest day
20.5 cm
4 January 1968
Sunniest day
17.5 h
24 June 2024
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 | 4.8 °C | +0.8 °C | 128 mm | -22 mm |
| Feb | 5.4 °C | +1.8 °C | 95 mm | -23 mm |
| Mar | 6.9 °C | +2.0 °C | 117 mm | +5 mm |
| Apr | 9.6 °C | +2.3 °C | 35 mm | -54 mm |
| May | 11.6 °C | +0.8 °C | 81 mm | -2 mm |
| Jun | 14.0 °C | +0.5 °C | 116 mm | +26 mm |
| Jul | 18.6 °C | +2.9 °C | 81 mm | -26 mm |
| Aug | 16.2 °C | +0.1 °C | 160 mm | +2 mm |
| Sep | 15.4 °C | +1.3 °C | 301 mm | +100 mm |
| Oct | 12.2 °C | +1.3 °C | 204 mm | -13 mm |
| Nov | 8.9 °C | +1.3 °C | 224 mm | +28 mm |
| Dec | 8.5 °C | +3.0 °C | 290 mm | +108 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 Kopervik?
Kopervik has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.1 °C and it receives 1,702 mm of precipitation per year.
What is the hottest day ever recorded in Kopervik?
The hottest day measured in Kopervik between 1940 and 2025 was 29 July 2008, reaching 25.8 °C.
What is the coldest day in Kopervik?
The coldest day measured in Kopervik between 1940 and 2025 was 26 January 1942, at -15.4 °C.
Does it snow in Kopervik?
Yes. Kopervik gets on average 57.2 cm of snow per year and has around 33 frost days.
Has the climate of Kopervik warmed?
Yes: Kopervik warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kopervik?
The wettest day measured in Kopervik between 1940 and 2025 was 4 September 1990, with 69 mm of rain in 24 hours.
What was the windiest day in Kopervik?
The windiest day measured in Kopervik between 1940 and 2025 was 22 September 1969, with winds reaching 80.5 km/h.
What is the warmest month in Kopervik?
The warmest month in Kopervik is August (14.7 °C on average); the coldest is February (2.3 °C).
How much does it rain in Kopervik?
Kopervik receives on average 1,702 mm of precipitation per year, spread over about 198 rainy days.
Is it sunny in Kopervik?
Kopervik gets on average 7.6 hours of sunshine per day, roughly 2,774 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kopervik?
The heaviest 24-hour snowfall measured in Kopervik between 1940 and 2025 was 4 January 1968, with 20.5 cm.
Are there tropical nights in Kopervik?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kopervik.
What was the most extreme apparent temperature in Kopervik?
In Kopervik, between 1940 and 2025, the highest apparent temperature reached 27.3 °C on 10 August 2004, and the lowest was -22.9 °C on 25 January 1942.
Compare Kopervik with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kopervik