Biscarrosse climate — normals and trends
Biscarrosse (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 14.1 °C and it receives 847 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 August (20.8 °C on average) and the coldest is January (8.0 °C). Rainfall peaks in November.
Biscarrosse averages 4 frost days, 2 hot days (≥ 30 °C) and 133 rainy days per year.
Biscarrosse has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 7 to 1 per year over the period.
The hottest day of the period reached 36.5 °C (on 4 August 2003) and the coldest -8.6 °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
BiscarrosseNew Aquitaine
- coords
- 44.39°, -1.17°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.1°C
Average daily high
16.6°C
Average daily low
11.9°C
Annual rainfall
847mm
Sunshine / day
9.5h
Mean relative humidity
78%
Average peak wind
20.6km/h
Seasonal range
12.8°C
Frost days (< 0 °C)
4 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
1.2 cm
Average feels-like high
15.3 °C
Average feels-like low
9.8 °C
Average peak gust
35.8 km/h
Tropical nights (≥ 20 °C)
13 d/yr
Solar radiation
14.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.45 · 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
36.5 °C
4 August 2003
Coldest day
-8.6 °C
16 January 1985
Wettest day
58 mm
2 August 1968
Windiest day
77.3 km/h
24 January 2009
Strongest gust
142.9 km/h
27 December 1999
Hottest feels-like
39.6 °C
4 August 2003
Coldest feels-like
-14.3 °C
10 February 1956
Snowiest day
7.8 cm
20 February 1956
Sunniest day
15.0 h
18 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 | 11.6 °C | +1.6 °C | 132 mm | +47 mm |
| Feb | 13.0 °C | +2.2 °C | 66 mm | -7 mm |
| Mar | 14.1 °C | +1.1 °C | 47 mm | -17 mm |
| Apr | 17.3 °C | +2.3 °C | 67 mm | +3 mm |
| May | 19.4 °C | +1.4 °C | 36 mm | -28 mm |
| Jun | 24.6 °C | +3.5 °C | 39 mm | -17 mm |
| Jul | 24.1 °C | +0.9 °C | 19 mm | -26 mm |
| Aug | 25.8 °C | +2.3 °C | 55 mm | -0 mm |
| Sep | 21.6 °C | -0.1 °C | 64 mm | -2 mm |
| Oct | 19.6 °C | +1.3 °C | 79 mm | -1 mm |
| Nov | 15.0 °C | +1.4 °C | 131 mm | +33 mm |
| Dec | 12.3 °C | +1.4 °C | 86 mm | -10 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 Biscarrosse?
Biscarrosse has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 14.1 °C and it receives 847 mm of precipitation per year.
What is the hottest day ever recorded in Biscarrosse?
The hottest day measured in Biscarrosse between 1940 and 2025 was 4 August 2003, reaching 36.5 °C.
What is the coldest day in Biscarrosse?
The coldest day measured in Biscarrosse between 1940 and 2025 was 16 January 1985, at -8.6 °C.
Does it snow in Biscarrosse?
Yes. Biscarrosse gets on average 1.2 cm of snow per year and has around 4 frost days.
Has the climate of Biscarrosse warmed?
Yes: Biscarrosse warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Biscarrosse?
The wettest day measured in Biscarrosse between 1940 and 2025 was 2 August 1968, with 58 mm of rain in 24 hours.
What was the windiest day in Biscarrosse?
The windiest day measured in Biscarrosse between 1940 and 2025 was 24 January 2009, with winds reaching 77.3 km/h.
What is the warmest month in Biscarrosse?
The warmest month in Biscarrosse is August (20.8 °C on average); the coldest is January (8.0 °C).
How much does it rain in Biscarrosse?
Biscarrosse receives on average 847 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Biscarrosse?
Biscarrosse gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
What is the biggest single-day snowfall in Biscarrosse?
The heaviest 24-hour snowfall measured in Biscarrosse between 1940 and 2025 was 20 February 1956, with 7.8 cm.
Are there tropical nights in Biscarrosse?
Yes: Biscarrosse has on average 13 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Biscarrosse?
In Biscarrosse, between 1940 and 2025, the highest apparent temperature reached 39.6 °C on 4 August 2003, and the lowest was -14.3 °C on 10 February 1956.
Compare Biscarrosse with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Biscarrosse