Weather in Biarritz in August 2025
- August is usually the hottest month of the year in Biarritz;
Average weather
Average temperature in Biarritz in August
Going from a maximum of +38°C during the day to a minimum of +14°C during the night, the temperature in August averages around +25°C.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +24°C to +24°C.
Is Biarritz warm or cold in August?
Biarritz is typically warm in August.
Maximum temperatures go up compared to the previous month from +24°C to +25°C. The minimum temperature also goes up from +17°C to +17°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is the hottest month in Biarritz, here is the comparison with other months:
Water temperature in Biarritz in August
Water in Biarritz in August is Comfortable. It varies from +20°C to +23°C, with an average of +21°C. This is almost similar to the air temperature, which averages +25°C.
The water temperature in August is one of the warmest of the entire year:
Can you swim in Biarritz in August?
Climate in Biarritz in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +24°C | +25°C | +23°C | ||||
| Min. temperature | ||||||
| +11°C | +10°C | +6°C | ||||
| Max. temperature | ||||||
| +40°C | +40°C | +37°C | ||||
| Rainfall | ||||||
| 86 mm | 93 mm | 93 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +21°C | +21°C | +21°C | ||||
| Humidity | ||||||
| 79% | 78% | 77% | ||||
| Air pressure | ||||||
| 1017 HPa | 1017 HPa | 1017 HPa | ||||
| Sunny days | ||||||
| 5 | 5 | 7 | ||||
| Cloudy days | ||||||
| 9 | 8 | 6 | ||||
| Rainy days | ||||||
| 14 | 15 | 14 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. It’s getting warmer as August arrives. The average maximum temperature goes up from +24°C to +25°C during the day. Prepare for more rain. Average rainfall goes from 86 mm to 93 mm. It feels drier, as humidity decreases from 79% to 78%. Winds are calmer in comparison to July, going down from 3 m/s to 2 m/s on average. The amount of sunny days stay about the same, averaging 5 sunny days during the month.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Biarritz is gradually decreasing during August, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last August in Biarritz?
Climate Change over Years
The climate in Biarritz in August has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+17°C) and the highest in 2022 (+20°C). The driest year was 1991 with only 917 mm of rainfall, and the wettest year was 2013 with 1763 mm.
FAQ
Is August a good time to visit Biarritz?
Can you sunbathe in Biarritz in August?
Can you swim in Biarritz in August?
Is Biarritz rainy in August?
Is it sunny in Biarritz in August?
Other cities in France
Monthly weather in Biarritz
Source of the data
For this page, we’ve looked at the typical weather in Biarritz, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.