Biarritz weather by month & the best time to visit
🇫🇷 France · seaside town · humid subtropical climate
The best time to visit Biarritz is July — its sunniest month (Sunshine Score 82/100), with August and September close behind. Biarritz averages about 2,077 hours of sunshine a year. Daytime highs around 26°C / 79°F and roughly 51 mm of rain in July.
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- Sun hours / year
- 2,077
- Sunniest month
- July
- Peak score
- 82/100
- Rain / year
- 1,069 mm
- Midday UV at peak
- 7 (high)
- Sea at warmest
- 24°C / 75°F
- Population
- 33k
- Elevation
- 69 m

When is the best time to visit Biarritz?
For sunshine, the best time to visit Biarritz is July, then August and September. The dullest month is January (17/100, 121 mm of rain). The full month-by-month picture is in the table below.
How sunny is Biarritz?
Biarritz gets a moderate 2,077 hours of sunshine a year. 65 Sunshine Score points separate July (82) from January (17), so the month you pick matters. It ranks #33 of 53 destinations in France for annual sunshine, below the national median of 2,146 hours. The year's 1,069 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 17 | 11° / 52°F | 5° / 41°F | 121 mm | 1 | 13° / 55°F |
| February | 19 | 11° / 52°F | 4° / 39°F | 90 mm | 2 | 13° / 55°F |
| March | 37 | 14° / 57°F | 6° / 43°F | 89 mm | 3 | 13° / 55°F |
| April | 56 | 17° / 63°F | 9° / 48°F | 89 mm | 4 | 15° / 59°F |
| May | 75 | 20° / 68°F | 12° / 54°F | 89 mm | 6 | 17° / 63°F |
| June | 77 | 24° / 75°F | 15° / 59°F | 73 mm | 6 | 20° / 68°F |
| July | 82 | 26° / 79°F | 17° / 63°F | 51 mm | 7 | 23° / 73°F |
| August | 81 | 27° / 81°F | 17° / 63°F | 53 mm | 6 | 24° / 75°F |
| September | 79 | 25° / 77°F | 15° / 59°F | 65 mm | 5 | 22° / 72°F |
| October | 74 | 20° / 68°F | 12° / 54°F | 93 mm | 3 | 19° / 66°F |
| November | 32 | 14° / 57°F | 8° / 46°F | 144 mm | 1 | 17° / 63°F |
| December | 18 | 11° / 52°F | 5° / 41°F | 112 mm | 1 | 14° / 57°F |
Sea temperature in Biarritz by month
The sea off Biarritz is warmest in August at around 24°C / 75°F, and coolest in January at 13°C / 55°F. The water sits at a comfortable 21°C or warmer roughly 3 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Biarritz on the interactive sunshine globe →
Nearby places for sunshine
- San Sebastián Spain · 25 km · best in Jul · 2,077 h sun/yr
- Pau/Pyrénées (Uzein) France · 90 km · best in Jul · 2,105 h sun/yr
- Bilbao Spain · 114 km · best in Jul · 1,988 h sun/yr
- Vitoria-Gasteiz Spain · 117 km · best in Jul · 2,314 h sun/yr
- Tarbes/Lourdes/Pyrénées France · 127 km · best in Aug · 2,105 h sun/yr
- Bordeaux France · 164 km · best in Jul · 2,183 h sun/yr
Nearest destinations
- Pamplona Spain · 78 km · 2,545 h sun/yr · best in Jul
Head-to-head
How Biarritz compares month by month: Biarritz vs Bilbao · Biarritz vs Bordeaux · Biarritz vs San Sebastián · Biarritz vs Pau/Pyrénées (Uzein) · all comparisons
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