Biarritz at a glance
- Best time
- Jul – Aug
- Warmest month
- Aug · 24°
- Warmest sea
- Aug · 22.2°
- Sunshine a year
- 2,330 h
- Rain a year
- 1,247 mm
- Climate
- Temperate
- Time zone
- UTC+1 / UTC+2
- Elevation
- 39 m
Climate in Biarritz
Biarritz has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 24 °C, while January is the coolest at 11 °C. With around 2,330 hours of sunshine a year, Biarritz is sunny; July is the sunniest month with 8.0 hours a day.
Weather in October
Holiday weather in October
Poor
Best time to visit: July – August
What is the weather like in Biarritz in October?
In October, Biarritz is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 18.6 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 109 mm in total. All in all, October is not an ideal month for a holiday in Biarritz.
More details for October
- Daylight
- 11 h 6 min08:19 – 19:25
- UV index
- 3 · moderateclear sky, noon (estimate)
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 18 km/haverage daily peak
- Cloud cover
- 61 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+2Europe/Paris
How the score comes together
- Temperatureweight 35 %12 %
- Seaweight 25 %23 %
- Sunshineweight 20 %50 %
- Few rainy daysweight 20 %42 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Sea temperature in Biarritz
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 17.3 – 19.6 °C
Swimming season: Jul – Sep
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Biarritz ranges from 12.2 °C in February to 22.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from July to September.
From November to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 21.5 and 23.2 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 12.7° | 12.0° | 13.6° | cold |
| FebruaryFeb | 12.2° | 11.5° | 13.0° | cold |
| MarchMar | 12.5° | 11.8° | 13.2° | cold |
| AprilApr | 13.8° | 13.1° | 14.6° | cold |
| MayMay | 16.1° | 15.3° | 17.2° | cold |
| JuneJun | 19.3° | 18.5° | 20.6° | fresh |
| JulyJul | 21.4° | 20.4° | 22.8° | refreshing |
| AugustAug | 22.2° | 21.5° | 23.2° | refreshing |
| SeptemberSep | 21.0° | 19.8° | 21.8° | refreshing |
| OctoberOct | 18.6° | 17.3° | 19.6° | fresh |
| NovemberNov | 16.0° | 14.8° | 17.1° | cold |
| DecemberDec | 13.9° | 13.0° | 15.0° | cold |
Sunshine hours in Biarritz
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 6.0 of 11.1 hours of daylight in Biarritz, 54 % of the day.
Sunshine hours count the time with bright, direct sunshine (WMO definition, estimated from model data); daylight is the time from sunrise to sunset on the 15th of the month.
Rain in Biarritz: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Biarritz has about 12 rainy days with 109 mm of rain in total.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 10 | 11° | 5° | 12.7° | 4.5 h | 14 | 134 |
| FebruaryFeb | 16 | 12° | 5° | 12.2° | 5.4 h | 13 | 106 |
| MarchMar | 19 | 14° | 7° | 12.5° | 6.6 h | 13 | 102 |
| AprilApr | 20 | 16° | 9° | 13.8° | 7.0 h | 14 | 99 |
| MayMay | 20 | 19° | 12° | 16.1° | 7.2 h | 14 | 94 |
| JuneJun | 52 | 22° | 15° | 19.3° | 7.7 h | 11 | 80 |
| JulyJul | 70 | 24° | 17° | 21.4° | 8.0 h | 11 | 61 |
| AugustAug | 77 | 24° | 18° | 22.2° | 8.0 h | 11 | 67 |
| SeptemberSep | 59 | 23° | 15° | 21.0° | 7.3 h | 11 | 85 |
| OctoberOct | 28 | 20° | 13° | 18.6° | 6.0 h | 12 | 109 |
| NovemberNov | 8 | 14° | 9° | 16.0° | 4.6 h | 16 | 177 |
| DecemberDec | 10 | 12° | 6° | 13.9° | 4.3 h | 14 | 135 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)
43.48° N, 1.56° W · 39 m · Europe/Paris
Best time to visit Biarritz
The best time to visit Biarritz is from July to August. For a beach holiday with the sea above 21 °C, go from July to August. For sightseeing, day trips and hiking, conditions are most comfortable from June to September. Rain is most frequent from October to May; the wettest month is November with 177 mm.
Find your perfect month
Tell us what you like and we rate every month in Biarritz for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Which month for what?
Beach & swimming
Jul – Aug
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Jun – Sep
15–28 °C and not too much rain
Rainy months
Oct – May
12 or more rainy days
Biarritz month by month
The typical weather for every month at a glance.
10January11° · Sea 13° · 5 h
In January, Biarritz is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 12.7 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. It rains often – on about 14 days, adding up to 134 mm. All in all, January is not an ideal month for a holiday in Biarritz.
Biarritz in January16February12° · Sea 12° · 5 h
In February, Biarritz is cool: daytime highs average 12 °C, and nights cool down to about 5 °C. The sea averages 12.2 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 106 mm in total. All in all, February is not an ideal month for a holiday in Biarritz.
Biarritz in February19March14° · Sea 13° · 7 h
In March, Biarritz is cool: daytime highs average 14 °C, and nights cool down to about 7 °C. The sea averages 12.5 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 13 rainy days and 102 mm in total. All in all, March is not an ideal month for a holiday in Biarritz.
Biarritz in March20April16° · Sea 14° · 7 h
In April, Biarritz is mild: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 13.8 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 14 rainy days and 99 mm in total. All in all, April is not an ideal month for a holiday in Biarritz.
Biarritz in April20May19° · Sea 16° · 7 h
In May, Biarritz is mild: daytime highs average 19 °C, and nights cool down to about 12 °C. The sea averages 16.1 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 14 rainy days and 94 mm in total. All in all, May is not an ideal month for a holiday in Biarritz.
Biarritz in May52June22° · Sea 19° · 8 h
In June, Biarritz is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 19.3 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 80 mm in total. All in all, June is a so-so month for a holiday in Biarritz.
Biarritz in June70July24° · Sea 21° · 8 h
In July, Biarritz is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. The sea averages 21.4 °C – refreshing for a swim. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 61 mm in total. All in all, July is a good month for a holiday in Biarritz.
Biarritz in July77August24° · Sea 22° · 8 h
In August, Biarritz is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 22.2 °C – refreshing for a swim. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 67 mm in total. All in all, August is a good month for a holiday in Biarritz.
Biarritz in August59September23° · Sea 21° · 7 h
In September, Biarritz is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. The sea averages 21.0 °C – refreshing for a swim. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 85 mm in total. All in all, September is a so-so month for a holiday in Biarritz.
Biarritz in September28October20° · Sea 19° · 6 h
In October, Biarritz is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 18.6 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 109 mm in total. All in all, October is not an ideal month for a holiday in Biarritz.
Biarritz in October8November14° · Sea 16° · 5 h
In November, Biarritz is cool: daytime highs average 14 °C, and nights cool down to about 9 °C. The sea averages 16.0 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. It rains often – on about 16 days, adding up to 177 mm. All in all, November is not an ideal month for a holiday in Biarritz.
Biarritz in November10December12° · Sea 14° · 4 h
In December, Biarritz is cool: daytime highs average 12 °C, and nights cool down to about 6 °C. The sea averages 13.9 °C – swimming is only for the hardy. Expect around 4 hours of sunshine a day. It rains often – on about 14 days, adding up to 135 mm. All in all, December is not an ideal month for a holiday in Biarritz.
Biarritz in DecemberPlanning a trip to Biarritz
Getting there
Flying from
- Nonstop flight
- about 1 h 35 min
- Distance
- 890 km
- Time zone
- UTC+2
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Biarritz
When is the best time to visit Biarritz?
The best time to visit Biarritz is from July to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Biarritz?
The sea temperature in Biarritz ranges from 12.2 °C in February to 22.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from July to September.
Can you swim in Biarritz in October?
Only if you don't mind cold water: in October the sea averages just 18.6 °C. Comfortable swimming is possible from July to September.
What is the warmest month in Biarritz?
August is the warmest month, with average highs of 24 °C and nights around 18 °C. January is the coolest month at 11 °C.
When does it rain most in Biarritz?
Rain is most frequent from October to May; the wettest month is November with 177 mm. The driest month is July with 61 mm.
How many hours of sunshine does Biarritz get?
Biarritz gets around 2,330 hours of sunshine a year. The sunniest month is July with 8.0 hours a day; in December there are 4.3 hours a day.
What time zone is Biarritz in?
Biarritz uses the time zone Europe/Paris: UTC+1 in January and UTC+2 in July.
How long is the flight from London to Biarritz?
A nonstop flight from London to Biarritz takes about 1 h 35 min, for a straight-line distance of about 890 km.
Near Biarritz
Other destinations close by.