Biarritz Weather & Climate: Best Time to Visit
Biarritz has a temperate maritime climate. The weather in Biarritz is strongly influenced by the currents in the Bay of Biscay. This causes very unstable weather, especially during spring and autumn. During summers it is often wonderfully warm. The seawater temperature in July/August is between 21°C (70°F) and 22°C (72°F).
Biarritz is one also of the wettest cities in France. The annual precipitation averages around 1450 mm (57 in). This is more than double compared to for example Paris. The last three months of the year are the wettest period. The summer months of June, July and August are the driest months and the best month to visit Biarritz.
Monthly Temperature in Biarritz
The climate in Biarritz is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 25°C (77°F) in August to a moderate 13°C (55°F) in the coolest month, February.
Nights vary from 18°C (64°F) in August to around 7°C (45°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Biarritz
Biarritz has a notably wet climate with abundant precipitation, recording 1350 mm (53 in) of rainfall per year. The climate in Biarritz shows significant variation throughout the year. Expect heavy rainfall in November, the wettest month, with an average of 172 mm (6.8 in) of precipitation over 16 rainy days.
In contrast, the driest month July offers drier and sunnier days, with around 72 mm (2.8 in) of rainfall over 12 rainy days. For more details, please visit our Biarritz Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Biarritz
For those who appreciate different seasons, Biarritz serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 7.0 hours of sunshine daily, and embrace the darker days in December, offering only 3.0 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Biarritz by Month
The relative humidity is high throughout the year in Biarritz.
The city experiences its highest humidity in June, reaching 81%. In March, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Biarritz 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Biarritz
Biarritz's weather is most enjoyable during May, June, July, August, September and October, with comfortable temperatures from 20°C (68°F) to 25°C (77°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 72 mm (2.8 in) and 121 mm (4.8 in), providing a good balance of sunny and rainy days.The wettest months are November, when precipitation is at its highest. Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
