Tonnay-Charente climate — normals and trends
Tonnay-Charente (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 13.1 °C and it receives 722 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 (20.4 °C on average) and the coldest is January (6.1 °C). Rainfall peaks in December.
Tonnay-Charente averages 22 frost days, 12 hot days (≥ 30 °C) and 123 rainy days per year.
Tonnay-Charente has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 28 to 16 per year over the period.
The hottest day of the period reached 40.9 °C (on 18 July 2022) and the coldest -12.2 °C (on 17 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
Tonnay-CharenteNew Aquitaine
- coords
- 45.94°, -0.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.1°C
Average daily high
16.9°C
Average daily low
9.5°C
Annual rainfall
722mm
Sunshine / day
9.0h
Mean relative humidity
76%
Average peak wind
20.3km/h
Seasonal range
14.3°C
Frost days (< 0 °C)
22 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
123 d/yr
Annual snowfall
2.6 cm
Average feels-like high
15.0 °C
Average feels-like low
7.1 °C
Average peak gust
38.2 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
13.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.33 · 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
40.9 °C
18 July 2022
Coldest day
-12.2 °C
17 January 1987
Wettest day
54 mm
3 October 2006
Windiest day
82.1 km/h
27 December 1999
Strongest gust
144.4 km/h
27 December 1999
Hottest feels-like
42.1 °C
29 July 2024
Coldest feels-like
-18.5 °C
12 January 1987
Snowiest day
9.9 cm
28 November 1947
Sunniest day
15.4 h
17 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 | 10.2 °C | +1.2 °C | 146 mm | +74 mm |
| Feb | 12.1 °C | +1.8 °C | 70 mm | +8 mm |
| Mar | 14.5 °C | +1.3 °C | 35 mm | -23 mm |
| Apr | 18.7 °C | +2.9 °C | 91 mm | +34 mm |
| May | 21.2 °C | +2.0 °C | 46 mm | -18 mm |
| Jun | 27.6 °C | +4.9 °C | 12 mm | -36 mm |
| Jul | 26.4 °C | +1.5 °C | 36 mm | -3 mm |
| Aug | 28.7 °C | +3.9 °C | 45 mm | +2 mm |
| Sep | 21.6 °C | -0.9 °C | 66 mm | +14 mm |
| Oct | 19.0 °C | +0.9 °C | 78 mm | +7 mm |
| Nov | 14.5 °C | +1.8 °C | 92 mm | +13 mm |
| Dec | 10.9 °C | +1.2 °C | 60 mm | -20 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 Tonnay-Charente?
Tonnay-Charente has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 13.1 °C and it receives 722 mm of precipitation per year.
What is the hottest day ever recorded in Tonnay-Charente?
The hottest day measured in Tonnay-Charente between 1940 and 2025 was 18 July 2022, reaching 40.9 °C.
What is the coldest day in Tonnay-Charente?
The coldest day measured in Tonnay-Charente between 1940 and 2025 was 17 January 1987, at -12.2 °C.
Does it snow in Tonnay-Charente?
Yes. Tonnay-Charente gets on average 2.6 cm of snow per year and has around 22 frost days.
Has the climate of Tonnay-Charente warmed?
Yes: Tonnay-Charente warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tonnay-Charente?
The wettest day measured in Tonnay-Charente between 1940 and 2025 was 3 October 2006, with 54 mm of rain in 24 hours.
What was the windiest day in Tonnay-Charente?
The windiest day measured in Tonnay-Charente between 1940 and 2025 was 27 December 1999, with winds reaching 82.1 km/h.
What is the warmest month in Tonnay-Charente?
The warmest month in Tonnay-Charente is July (20.4 °C on average); the coldest is January (6.1 °C).
How much does it rain in Tonnay-Charente?
Tonnay-Charente receives on average 722 mm of precipitation per year, spread over about 123 rainy days.
Is it sunny in Tonnay-Charente?
Tonnay-Charente gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Tonnay-Charente?
The heaviest 24-hour snowfall measured in Tonnay-Charente between 1940 and 2025 was 28 November 1947, with 9.9 cm.
Are there tropical nights in Tonnay-Charente?
Yes: Tonnay-Charente has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tonnay-Charente?
In Tonnay-Charente, between 1940 and 2025, the highest apparent temperature reached 42.1 °C on 29 July 2024, and the lowest was -18.5 °C on 12 January 1987.
Compare Tonnay-Charente with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tonnay-Charente