Castelnaudary climate — normals and trends
Castelnaudary (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 12.5 °C and it receives 928 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 (20.6 °C on average) and the coldest is January (4.8 °C). Rainfall peaks in December.
Castelnaudary averages 29 frost days, 11 hot days (≥ 30 °C) and 138 rainy days per year.
Castelnaudary 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 39 to 19 per year over the period.
The hottest day of the period reached 39.3 °C (on 23 August 2023) and the coldest -19.8 °C (on 16 January 1985).
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
CastelnaudaryOccitanie
- coords
- 43.32°, 1.95°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.5°C
Average daily high
16.7°C
Average daily low
8.7°C
Annual rainfall
928mm
Sunshine / day
8.9h
Mean relative humidity
77%
Average peak wind
18.3km/h
Seasonal range
15.8°C
Frost days (< 0 °C)
29 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
138 d/yr
Annual snowfall
29.1 cm
Average feels-like high
15.0 °C
Average feels-like low
6.4 °C
Average peak gust
41.3 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
13.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.50 · 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
39.3 °C
23 August 2023
Coldest day
-19.8 °C
16 January 1985
Wettest day
75 mm
24 September 1993
Windiest day
51.7 km/h
27 December 1999
Strongest gust
136.1 km/h
24 January 2009
Hottest feels-like
43.1 °C
23 August 2023
Coldest feels-like
-24.8 °C
16 January 1985
Snowiest day
18.8 cm
1 November 1956
Sunniest day
14.6 h
17 June 2019
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 | 10.4 °C | +2.2 °C | 71 mm | -22 mm |
| Feb | 12.5 °C | +2.8 °C | 26 mm | -57 mm |
| Mar | 12.7 °C | 0.0 °C | 97 mm | +12 mm |
| Apr | 17.5 °C | +2.3 °C | 81 mm | -14 mm |
| May | 20.5 °C | +1.8 °C | 127 mm | +36 mm |
| Jun | 28.1 °C | +5.4 °C | 38 mm | -23 mm |
| Jul | 26.9 °C | +1.4 °C | 39 mm | -5 mm |
| Aug | 29.6 °C | +4.0 °C | 90 mm | +37 mm |
| Sep | 21.6 °C | -1.0 °C | 37 mm | -24 mm |
| Oct | 19.9 °C | +2.0 °C | 33 mm | -40 mm |
| Nov | 13.1 °C | +1.0 °C | 125 mm | +36 mm |
| Dec | 11.3 °C | +2.3 °C | 84 mm | -15 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 Castelnaudary?
Castelnaudary has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 12.5 °C and it receives 928 mm of precipitation per year.
What is the hottest day ever recorded in Castelnaudary?
The hottest day measured in Castelnaudary between 1940 and 2025 was 23 August 2023, reaching 39.3 °C.
What is the coldest day in Castelnaudary?
The coldest day measured in Castelnaudary between 1940 and 2025 was 16 January 1985, at -19.8 °C.
Does it snow in Castelnaudary?
Yes. Castelnaudary gets on average 29.1 cm of snow per year and has around 29 frost days.
Has the climate of Castelnaudary warmed?
Yes: Castelnaudary warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Castelnaudary?
The wettest day measured in Castelnaudary between 1940 and 2025 was 24 September 1993, with 75 mm of rain in 24 hours.
What was the windiest day in Castelnaudary?
The windiest day measured in Castelnaudary between 1940 and 2025 was 27 December 1999, with winds reaching 51.7 km/h.
What is the warmest month in Castelnaudary?
The warmest month in Castelnaudary is July (20.6 °C on average); the coldest is January (4.8 °C).
How much does it rain in Castelnaudary?
Castelnaudary receives on average 928 mm of precipitation per year, spread over about 138 rainy days.
Is it sunny in Castelnaudary?
Castelnaudary gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Castelnaudary?
The heaviest 24-hour snowfall measured in Castelnaudary between 1940 and 2025 was 1 November 1956, with 18.8 cm.
Are there tropical nights in Castelnaudary?
Yes: Castelnaudary has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Castelnaudary?
In Castelnaudary, between 1940 and 2025, the highest apparent temperature reached 43.1 °C on 23 August 2023, and the lowest was -24.8 °C on 16 January 1985.
Compare Castelnaudary with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Castelnaudary