Best Time to Visit Biarritz: Weather Month by Month

Q: What is the best time to visit Biarritz?

August is the best month with 24.0°C highs, 18.0°C lows, 6.9h of sunshine and 30.0% rainy days. The months of August & July offer comparable conditions.

Q: How many hours of sunshine does Biarritz get in August?

Biarritz averages 6.9 sunshine hours per day in August. It is the sunniest month with a climate score of 7.5/10.

Q: What is the rainiest month in Biarritz?

January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.

Q: What are the temperatures at night in Biarritz in August?

In August, overnight lows reach 18.0°C, while afternoon highs average 24.0°C.

Q: Is Biarritz good in winter?

In winter (December-February), Biarritz scores 3.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains August with a score of 7.5/10.

Q: When should you avoid Biarritz?

January is the most difficult month to visit Biarritz, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.

Decide

When to visit Biarritz?

The decision rests on several criteria. Climate score, tourist crowds and feasible activities.

Verdict: In Biarritz, August and July clearly stand out. January concentrates the least favourable conditions.

Top & avoid

🏆 August · 8.0 July · 7.9 June · 7.7 September · 7.7 ⚠️ January · 1.2

1.2

Jan

4.1

Feb

4.2

Mar

4.3

Apr

4.6

May

7.7

Jun

7.9

Jul

8.0

Aug

7.7

Sep

7.3

Oct

4.1

Nov

4.0

Dec

Best period · ≥ 7 Decent period · 4 – 7 Tough conditions · < 4

What you grasp in 5 seconds

Biarritz offers 5 comfortable months, with 1 months to avoid (January). The gap is sharp: 8.0 in August vs 1.2 in January.

What to check next

Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.

Next action

Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.

Compare the 12 months By your project

How we calculate the score

The score combines 4 weighted criteria using 10 years of real climate data (ERA5).

Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →

Understand

Compare all 12 months

Month-by-month details: temperature, rain, sunshine, score and verdict.

✅ 5 comfortable months (Jun · Jul · Aug · Sep · Oct)

Month	T° min	T° max	Rain %	mm/day	Sun	Score	Verdict
🌧️ January →	6°C	12°C	44%	4.9mm	3.1h	1.2/10	Tough conditions
🌥️ February →	6°C	14°C	42%	4.2mm	4.1h	4.1/10	Decent period
🌥️ March →	8°C	14°C	38%	4.2mm	5.3h	4.2/10	Decent period
🌥️ April →	10°C	16°C	44%	3.9mm	5.7h	4.3/10	Decent period
🌥️ May →	12°C	18°C	40%	3.6mm	6.3h	4.6/10	Decent period
☀️ June →	16°C	22°C	34%	3.7mm	6.9h	7.7/10	Best period
☀️ July →	18°C	23°C	30%	2.0mm	7.0h	7.9/10	Best period
☀️ August →	18°C	24°C	30%	2.3mm	6.9h	8.0/10	Best period
☀️ September →	16°C	22°C	34%	4.0mm	6.6h	7.7/10	Best period
⛅ October →	13°C	20°C	39%	3.7mm	4.7h	7.3/10	Best period
🌥️ November →	9°C	15°C	46%	7.3mm	3.4h	4.1/10	Decent period
🌥️ December →	7°C	13°C	42%	5.5mm	3.0h	4.0/10	Decent period

🌧️ January

1.2/10

T°6°C / 12°C

Rain %44%

T°6°C / 14°C

Rain %42%

Sun4.1h

Decent period

🌥️ March

4.2/10

T°8°C / 14°C

Rain %38%

Decent period

Rain %44%

Decent period

Rain %40%

Decent period

Rain %34%

Best period

Rain %30%

Best period

Rain %30%

Best period

Rain %34%

Best period

Rain %39%

Best period

T°9°C / 15°C

Rain %46%

Sun3.4h

Decent period

🌥️ December

4.0/10

T°7°C / 13°C

Rain %42%

Sun3.0h

Decent period

📊 Quick read

Optimal window

Jun → Oct

Good transition

May · Nov

Tough period

Jan

🌡️ Detailed conditions (August)

🌡️ Feel

Comfortable

☀️ UV

6.1 · Moderate-Strong

💧 Humidity feel

17°C · Pleasant

☔ Rain

30% · 2.3 mm/day

🌅 Sunshine

6.9h/day

Week by week

Biarritz week by week: your odds of avoiding rain

For each week of the year: in how many years out of 10 it was mostly dry (at most 2 rainy days), 2016 to 2025.

Safest week: Aug 20 to Aug 26, mostly dry in 10 years out of 10 (1.3 rainy day(s) on average).

Most exposed: May 7 to May 13, mostly dry in 1 years out of 10 (3.9 rainy days on average).

Number = years out of 10 with at most 2 rainy days in the week. Source: ERA5 reanalysis (ECMWF) via Open-Meteo, daily data 2016-2025. Rainy day = at least 1 mm, as everywhere on the site.
Jan	Jan 14/1012°C	Jan 83/1011°C	Jan 154/1011°C	Jan 225/1012°C	Jan 294/1013°C
Feb	Feb 52/1012°C	Feb 126/1016°C	Feb 195/1014°C	Feb 265/1014°C
Mar	Mar 51/1015°C	Mar 124/1015°C	Mar 197/1015°C	Mar 265/1017°C
Apr	Apr 26/1017°C	Apr 94/1018°C	Apr 164/1017°C	Apr 234/1017°C	Apr 305/1018°C
May	May 71/1019°C	May 144/1018°C	May 216/1020°C	May 288/1022°C
Jun	Jun 46/1021°C	Jun 114/1022°C	Jun 186/1024°C	Jun 256/1023°C
Jul	Jul 23/1023°C	Jul 96/1024°C	Jul 168/1025°C	Jul 236/1024°C	Jul 307/1024°C
Aug	Aug 66/1026°C	Aug 135/1025°C	Aug 2010/1026°C	Aug 275/1024°C
Sep	Sep 37/1024°C	Sep 105/1024°C	Sep 174/1023°C	Sep 245/1022°C
Oct	Oct 15/1021°C	Oct 84/1021°C	Oct 156/1021°C	Oct 223/1019°C	Oct 294/1019°C
Nov	Nov 54/1016°C	Nov 126/1016°C	Nov 194/1014°C	Nov 264/1013°C
Dec	Dec 32/1013°C	Dec 104/1014°C	Dec 175/1014°C	Dec 247/1013°C

A specific date? The app computes the same figure day by day.

10-year trend

Annual temperatures — Biarritz

Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.

Tailor

For your trip

A few angles depending on what kind of trip you are planning.

🏖️ Beaches: Jun-Sept🌊 Swell: Sept-Mar🚤 Water activities

Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🏨

Stay

Hotels & rentals · Biarritz

Expedia →

🎟️

Activities

Tours, tickets, experiences

See ↓

✈️

Flights

Multi-airline comparator

Kiwi →

🎟️ Activities & tours · Biarritz

GetYourGuide selection · free cancellation

See all →

Affiliate link · GetYourGuide

Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.

Country · France

🗣️LanguageFrench

💶CurrencyEuro (€)

🚗DrivingRight-hand

🛡️Safety ⓘVery safe · 1/5

💰Cost of living ⓘExpensive · 4/5

🌡️ Climate

🌍Climate typeTemperate oceanic

📈Climate trend ⓘ+1.23°C/decade

🔥Hottest monthAugust · 24°C

❄️Coolest monthJanuary · 12°C

🌧️Rainiest month ⓘNovember · 46%

🏖️ Beach holiday

📅Peak seasonJuin → Sept

🏖️Swell (Sept–Mar) ⓘModérée

🛂VisaSchengen · 90 days

Explore

Related destinations & guides

If this destination doesn't fit your dates, here are alternatives and guides.

Similar climate destinations

French Basque Country · France→

San Sebastián · Spain→

Normandy · France→

Brittany · France→

Nearby destinations

Bilbao · Spain113 km →

Bordeaux · France170 km →

Baqueira-Beret · Spain220 km →

Dordogne · France230 km →

Guides & rankings

World ranking 2026See →

Best summer destinationsSee →

Winter sunSee →

Where to go in JulySee →

🗺️ Climate map of 754 destinations

Location

Where is Biarritz ?

Global position + regional geographic context.

🌍 World

🔍 Geographic context

Temperate oceanic climate with a 8.0 → 1.2 gap between best and worst month. 10 years of ERA5 data to choose by project.

43.48°N · 1.56°W

Questions

Frequently asked questions

What is the best time to visit Biarritz?

August is the best month with 24.0°C highs, 18.0°C lows, 6.9h of sunshine and 30.0% rainy days. The months of August & July offer comparable conditions.

How many hours of sunshine does Biarritz get in August?

Biarritz averages 6.9 sunshine hours per day in August. It is the sunniest month with a climate score of 7.5/10.

What is the rainiest month in Biarritz?

January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.

What are the temperatures at night in Biarritz in August?

In August, overnight lows reach 18.0°C, while afternoon highs average 24.0°C.

Is Biarritz good in winter?

In winter (December-February), Biarritz scores 3.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains August with a score of 7.5/10.

When should you avoid Biarritz?

January is the most difficult month to visit Biarritz, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.