Seynod climate — normals and trends
Seynod (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.3 °C and it receives 1,586 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 (18.6 °C on average) and the coldest is January (0.0 °C). Rainfall peaks in August.
Seynod averages 92 frost days, 4 hot days (≥ 30 °C) and 159 rainy days per year.
Seynod has warmed by +3.1 °C between 1940 and 2025, or +0.36 °C per decade. This trend is statistically significant.
The number of frost days there went from about 126 to 58 per year over the period.
The hottest day of the period reached 37.6 °C (on 7 July 2015) and the coldest -26.6 °C (on 29 December 1941).
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
SeynodRhône-Alpes
- coords
- 45.89°, 6.09°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.3°C
Average daily high
13.5°C
Average daily low
5.0°C
Annual rainfall
1,586mm
Sunshine / day
8.7h
Mean relative humidity
77%
Average peak wind
9.0km/h
Seasonal range
18.6°C
Frost days (< 0 °C)
92 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
159 d/yr
Annual snowfall
148.4 cm
Average feels-like high
12.1 °C
Average feels-like low
3.0 °C
Average peak gust
29.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
13.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.1 °C
since 1940
+0.4 °C per decade · r² = 0.71 · 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
37.6 °C
7 July 2015
Coldest day
-26.6 °C
29 December 1941
Wettest day
77 mm
31 July 1977
Windiest day
30.5 km/h
25 April 1972
Strongest gust
116.6 km/h
28 December 1999
Hottest feels-like
38.4 °C
26 June 2019
Coldest feels-like
-31.2 °C
29 December 1941
Snowiest day
36.1 cm
17 April 2005
Sunniest day
15.0 h
26 May 1940
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 | 6.6 °C | +3.2 °C | 205 mm | +81 mm |
| Feb | 8.4 °C | +3.0 °C | 60 mm | -55 mm |
| Mar | 12.6 °C | +3.0 °C | 70 mm | -49 mm |
| Apr | 17.2 °C | +3.7 °C | 116 mm | -5 mm |
| May | 19.0 °C | +1.5 °C | 144 mm | -6 mm |
| Jun | 27.2 °C | +6.2 °C | 183 mm | +34 mm |
| Jul | 24.9 °C | +1.6 °C | 104 mm | -40 mm |
| Aug | 27.0 °C | +4.3 °C | 98 mm | -51 mm |
| Sep | 19.3 °C | 0.0 °C | 215 mm | +92 mm |
| Oct | 14.3 °C | -0.2 °C | 231 mm | +112 mm |
| Nov | 9.5 °C | +1.5 °C | 159 mm | +24 mm |
| Dec | 7.1 °C | +2.9 °C | 34 mm | -104 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 Seynod?
Seynod has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.3 °C and it receives 1,586 mm of precipitation per year.
What is the hottest day ever recorded in Seynod?
The hottest day measured in Seynod between 1940 and 2025 was 7 July 2015, reaching 37.6 °C.
What is the coldest day in Seynod?
The coldest day measured in Seynod between 1940 and 2025 was 29 December 1941, at -26.6 °C.
Does it snow in Seynod?
Yes. Seynod gets on average 148.4 cm of snow per year and has around 92 frost days.
Has the climate of Seynod warmed?
Yes: Seynod warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Seynod?
The wettest day measured in Seynod between 1940 and 2025 was 31 July 1977, with 77 mm of rain in 24 hours.
What was the windiest day in Seynod?
The windiest day measured in Seynod between 1940 and 2025 was 25 April 1972, with winds reaching 30.5 km/h.
What is the warmest month in Seynod?
The warmest month in Seynod is July (18.6 °C on average); the coldest is January (0.0 °C).
How much does it rain in Seynod?
Seynod receives on average 1,586 mm of precipitation per year, spread over about 159 rainy days.
Is it sunny in Seynod?
Seynod gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Seynod?
The heaviest 24-hour snowfall measured in Seynod between 1940 and 2025 was 17 April 2005, with 36.1 cm.
Are there tropical nights in Seynod?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Seynod.
What was the most extreme apparent temperature in Seynod?
In Seynod, between 1940 and 2025, the highest apparent temperature reached 38.4 °C on 26 June 2019, and the lowest was -31.2 °C on 29 December 1941.
Compare Seynod with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Seynod