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Climate · Biarritz

Biarritz in September

Warm and damp, as the days shorten.

Typical weather, averaged over 30 years

September in Biarritz is warm: highs near 75°F, lows near 61°F. Rain falls on about three days a week, and the days shorten by 1 hour 4 minutes from the first week to the last.September in Biarritz is warm: highs near 24°C, lows near 16°C. Rain falls on about three days a week, and the days shorten by 1 hour 4 minutes from the first week to the last.

High
75°F24°Caverage
Low
61°F16°Caverage
Wet days
3a week · 41% of days
Daylight
12h 24mon average

Is September a good time to visit Biarritz?

Yes. September is one of Biarritz's best months (July to October).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 75°F in September, against 56°F to 78°F through the year.Highs near 24°C in September, against 13°C to 26°C through the year.

Chance of a wet day

41% of days in September, against 37% to 51% through the year.

Cloud cover

44% cover in September, against 35% to 63% through the year.

Daylight

12h 24m in September, against 9h 00m to 15h 22m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August78°26°low 64°low 18°3 wet days a weekRain on about three days a week.
  2. September75°24°low 61°low 16°3 wet days a weekRain on about three days a week.
  3. October71°22°low 57°low 14°3 wet days a weekRain on about three days a week.

Where Biarritz sits, in September

Europe/Paris
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
7:44 AMsets 8:19 PM
Above the sea
10 mlow-lying
Latitude
43.5°Nnorthern hemisphere
Nearest of ours
Bordeaux170 km north-east

The land around Biarritz, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in France in September

high · low · wet days
See September on the planning mapThe whole year in Biarritz

Typical weather, averaged over 30 years (1995–2024), read 5 km north-east of Biarritz. Its own grid square is mostly sea and holds only a daily average, so the page reads the nearest square with a true high and low near the town's height. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.