Kragerø climate — normals and trends
Kragerø (Norway) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.0 °C and it receives 1,076 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 (0.2 °C). Rainfall peaks in October.
Kragerø averages 56 frost days, 0 hot days (≥ 30 °C) and 137 rainy days per year.
Kragerø has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 81 to 31 per year over the period.
The hottest day of the period reached 24.9 °C (on 28 June 2009) and the coldest -17.2 °C (on 10 January 1987).
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
KragerøTelemark
- coords
- 58.87°, 9.41°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.0°C
Average daily high
9.3°C
Average daily low
6.7°C
Annual rainfall
1,076mm
Sunshine / day
8.3h
Mean relative humidity
79%
Average peak wind
29.2km/h
Seasonal range
16.3°C
Frost days (< 0 °C)
56 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
121.8 cm
Average feels-like high
5.8 °C
Average feels-like low
2.1 °C
Average peak gust
40.3 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.2 °C per decade · r² = 0.38 · 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
24.9 °C
28 June 2009
Coldest day
-17.2 °C
10 January 1987
Wettest day
66 mm
9 July 2004
Windiest day
77.6 km/h
4 October 2025
Strongest gust
117.4 km/h
15 September 1994
Hottest feels-like
27.6 °C
25 July 2014
Coldest feels-like
-27.5 °C
10 January 1987
Snowiest day
29.5 cm
1 January 2024
Sunniest day
17.2 h
21 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 | 3.6 °C | +1.7 °C | 130 mm | +37 mm |
| Feb | 2.6 °C | +1.0 °C | 78 mm | +10 mm |
| Mar | 6.0 °C | +2.7 °C | 32 mm | -31 mm |
| Apr | 9.6 °C | +3.0 °C | 49 mm | -6 mm |
| May | 13.1 °C | +1.7 °C | 33 mm | -33 mm |
| Jun | 16.1 °C | +0.5 °C | 41 mm | -26 mm |
| Jul | 20.7 °C | +2.9 °C | 58 mm | -19 mm |
| Aug | 18.2 °C | +0.6 °C | 95 mm | -11 mm |
| Sep | 15.8 °C | +1.0 °C | 199 mm | +87 mm |
| Oct | 12.1 °C | +1.3 °C | 189 mm | +53 mm |
| Nov | 8.4 °C | +1.7 °C | 124 mm | -10 mm |
| Dec | 7.0 °C | +3.2 °C | 158 mm | +57 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 Kragerø?
Kragerø has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.0 °C and it receives 1,076 mm of precipitation per year.
What is the hottest day ever recorded in Kragerø?
The hottest day measured in Kragerø between 1940 and 2025 was 28 June 2009, reaching 24.9 °C.
What is the coldest day in Kragerø?
The coldest day measured in Kragerø between 1940 and 2025 was 10 January 1987, at -17.2 °C.
Does it snow in Kragerø?
Yes. Kragerø gets on average 121.8 cm of snow per year and has around 56 frost days.
Has the climate of Kragerø warmed?
Yes: Kragerø warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kragerø?
The wettest day measured in Kragerø between 1940 and 2025 was 9 July 2004, with 66 mm of rain in 24 hours.
What was the windiest day in Kragerø?
The windiest day measured in Kragerø between 1940 and 2025 was 4 October 2025, with winds reaching 77.6 km/h.
What is the warmest month in Kragerø?
The warmest month in Kragerø is July (16.5 °C on average); the coldest is February (0.2 °C).
How much does it rain in Kragerø?
Kragerø receives on average 1,076 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Kragerø?
Kragerø gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kragerø?
The heaviest 24-hour snowfall measured in Kragerø between 1940 and 2025 was 1 January 2024, with 29.5 cm.
Are there tropical nights in Kragerø?
Yes: Kragerø has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kragerø?
In Kragerø, between 1940 and 2025, the highest apparent temperature reached 27.6 °C on 25 July 2014, and the lowest was -27.5 °C on 10 January 1987.
Compare Kragerø with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kragerø