Aire-sur-l'Adour climate — normals and trends
Aire-sur-l'Adour (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 13.3 °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 (20.9 °C on average) and the coldest is January (5.8 °C). Rainfall peaks in May.
Aire-sur-l'Adour averages 26 frost days, 18 hot days (≥ 30 °C) and 139 rainy days per year.
Aire-sur-l'Adour 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 34 to 18 per year over the period.
The hottest day of the period reached 40.1 °C (on 23 August 2023) and the coldest -17.9 °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
Aire-sur-l'AdourNew Aquitaine
- coords
- 43.70°, -0.26°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.3°C
Average daily high
18.0°C
Average daily low
9.2°C
Annual rainfall
954mm
Sunshine / day
9.0h
Mean relative humidity
77%
Average peak wind
14.5km/h
Seasonal range
15.1°C
Frost days (< 0 °C)
26 d/yr
Hot days (≥ 30 °C)
18 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
4.1 cm
Average feels-like high
17.0 °C
Average feels-like low
7.5 °C
Average peak gust
31.2 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
+1.9 °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
40.1 °C
23 August 2023
Coldest day
-17.9 °C
17 January 1987
Wettest day
76 mm
10 October 2010
Windiest day
57.3 km/h
27 December 1999
Strongest gust
127.8 km/h
24 January 2009
Hottest feels-like
44.3 °C
23 August 2023
Coldest feels-like
-22.1 °C
17 January 1987
Snowiest day
11.8 cm
3 January 1997
Sunniest day
14.7 h
23 June 2018
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 | 11.4 °C | +1.8 °C | 133 mm | +49 mm |
| Feb | 14.3 °C | +3.0 °C | 43 mm | -32 mm |
| Mar | 15.3 °C | +0.7 °C | 67 mm | -9 mm |
| Apr | 19.0 °C | +2.1 °C | 101 mm | +10 mm |
| May | 22.0 °C | +1.6 °C | 86 mm | -14 mm |
| Jun | 28.4 °C | +4.5 °C | 66 mm | -13 mm |
| Jul | 27.2 °C | +0.9 °C | 22 mm | -37 mm |
| Aug | 29.9 °C | +3.6 °C | 84 mm | +16 mm |
| Sep | 23.4 °C | -0.4 °C | 53 mm | -17 mm |
| Oct | 21.1 °C | +1.8 °C | 40 mm | -37 mm |
| Nov | 14.7 °C | +1.4 °C | 117 mm | +31 mm |
| Dec | 11.5 °C | +1.4 °C | 57 mm | -30 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 Aire-sur-l'Adour?
Aire-sur-l'Adour has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 13.3 °C and it receives 954 mm of precipitation per year.
What is the hottest day ever recorded in Aire-sur-l'Adour?
The hottest day measured in Aire-sur-l'Adour between 1940 and 2025 was 23 August 2023, reaching 40.1 °C.
What is the coldest day in Aire-sur-l'Adour?
The coldest day measured in Aire-sur-l'Adour between 1940 and 2025 was 17 January 1987, at -17.9 °C.
Does it snow in Aire-sur-l'Adour?
Yes. Aire-sur-l'Adour gets on average 4.1 cm of snow per year and has around 26 frost days.
Has the climate of Aire-sur-l'Adour warmed?
Yes: Aire-sur-l'Adour warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aire-sur-l'Adour?
The wettest day measured in Aire-sur-l'Adour between 1940 and 2025 was 10 October 2010, with 76 mm of rain in 24 hours.
What was the windiest day in Aire-sur-l'Adour?
The windiest day measured in Aire-sur-l'Adour between 1940 and 2025 was 27 December 1999, with winds reaching 57.3 km/h.
What is the warmest month in Aire-sur-l'Adour?
The warmest month in Aire-sur-l'Adour is July (20.9 °C on average); the coldest is January (5.8 °C).
How much does it rain in Aire-sur-l'Adour?
Aire-sur-l'Adour receives on average 954 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Aire-sur-l'Adour?
Aire-sur-l'Adour 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 Aire-sur-l'Adour?
The heaviest 24-hour snowfall measured in Aire-sur-l'Adour between 1940 and 2025 was 3 January 1997, with 11.8 cm.
Are there tropical nights in Aire-sur-l'Adour?
Yes: Aire-sur-l'Adour has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aire-sur-l'Adour?
In Aire-sur-l'Adour, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 23 August 2023, and the lowest was -22.1 °C on 17 January 1987.
Compare Aire-sur-l'Adour with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aire-sur-l'Adour