Sedan climate — normals and trends
Sedan (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.2 °C and it receives 954 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 (1.2 °C). Rainfall peaks in December.
Sedan averages 64 frost days, 3 hot days (≥ 30 °C) and 157 rainy days per year.
Sedan 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 79 to 49 per year over the period.
The hottest day of the period reached 38.7 °C (on 25 July 2019) and the coldest -20.9 °C (on 23 January 1940).
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
SedanGrand Est
- coords
- 49.70°, 4.94°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.2°C
Average daily high
12.6°C
Average daily low
5.9°C
Annual rainfall
954mm
Sunshine / day
7.5h
Mean relative humidity
82%
Average peak wind
18.9km/h
Seasonal range
16.0°C
Frost days (< 0 °C)
64 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
157 d/yr
Annual snowfall
41.2 cm
Average feels-like high
10.1 °C
Average feels-like low
2.9 °C
Average peak gust
38.1 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.40 · 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
38.7 °C
25 July 2019
Coldest day
-20.9 °C
23 January 1940
Wettest day
60 mm
18 June 1966
Windiest day
56.9 km/h
24 November 1984
Strongest gust
125.6 km/h
24 November 1984
Hottest feels-like
38.4 °C
25 July 2019
Coldest feels-like
-25.5 °C
1 January 1979
Snowiest day
14.3 cm
27 December 2014
Sunniest day
15.5 h
2 July 2006
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 | +1.5 °C | 162 mm | +76 mm |
| Feb | 6.0 °C | +1.2 °C | 52 mm | -23 mm |
| Mar | 12.7 °C | +3.9 °C | 15 mm | -62 mm |
| Apr | 16.6 °C | +4.1 °C | 48 mm | -24 mm |
| May | 18.6 °C | +2.1 °C | 47 mm | -34 mm |
| Jun | 24.0 °C | +4.5 °C | 82 mm | +3 mm |
| Jul | 23.0 °C | +1.6 °C | 126 mm | +47 mm |
| Aug | 24.0 °C | +2.8 °C | 33 mm | -42 mm |
| Sep | 18.3 °C | +0.4 °C | 149 mm | +77 mm |
| Oct | 13.6 °C | +0.4 °C | 112 mm | +35 mm |
| Nov | 9.2 °C | +1.7 °C | 70 mm | -18 mm |
| Dec | 7.3 °C | +2.9 °C | 39 mm | -55 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 Sedan?
Sedan has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.2 °C and it receives 954 mm of precipitation per year.
What is the hottest day ever recorded in Sedan?
The hottest day measured in Sedan between 1940 and 2025 was 25 July 2019, reaching 38.7 °C.
What is the coldest day in Sedan?
The coldest day measured in Sedan between 1940 and 2025 was 23 January 1940, at -20.9 °C.
Does it snow in Sedan?
Yes. Sedan gets on average 41.2 cm of snow per year and has around 64 frost days.
Has the climate of Sedan warmed?
Yes: Sedan warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sedan?
The wettest day measured in Sedan between 1940 and 2025 was 18 June 1966, with 60 mm of rain in 24 hours.
What was the windiest day in Sedan?
The windiest day measured in Sedan between 1940 and 2025 was 24 November 1984, with winds reaching 56.9 km/h.
What is the warmest month in Sedan?
The warmest month in Sedan is July (17.2 °C on average); the coldest is January (1.2 °C).
How much does it rain in Sedan?
Sedan receives on average 954 mm of precipitation per year, spread over about 157 rainy days.
Is it sunny in Sedan?
Sedan 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 Sedan?
The heaviest 24-hour snowfall measured in Sedan between 1940 and 2025 was 27 December 2014, with 14.3 cm.
Are there tropical nights in Sedan?
Yes: Sedan has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sedan?
In Sedan, between 1940 and 2025, the highest apparent temperature reached 38.4 °C on 25 July 2019, and the lowest was -25.5 °C on 1 January 1979.
Compare Sedan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sedan