Monthly climate guide
Biarritz weather in December
Expect cool weather in Biarritz in December: afternoons reach about 12°C (54°F), while nights drop to around 6°C (43°F). Around 121 mm of rain falls over the month (wet), and skies are often cloudy. Daytime highs are 3°C cooler than November and 2°C warmer than January.
What stands out in December
- There's little difference between day and night (around 6°C).
- Seasonally, December counts as early winter in Biarritz.
- Just 130 km apart, but Biarritz runs about 4°C warmer than Lourdes this month.
- Only 2 months are cooler in Biarritz than December.
Avg high
12°C
54°F
Avg low
6°C
43°F
Rainfall
121 mm
wet
Humidity
86%
relative
Sky
75%
cloud · often cloudy
Biarritz weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 10°C / 51°F | 5°C / 40°F | 141 mm | 87% | 78% |
| February | 11°C / 52°F | 4°C / 40°F | 111 mm | 84% | 71% |
| March | 14°C / 57°F | 6°C / 43°F | 97 mm | 82% | 70% |
| April | 17°C / 62°F | 9°C / 47°F | 98 mm | 80% | 71% |
| May | 19°C / 67°F | 11°C / 52°F | 99 mm | 80% | 72% |
| June | 23°C / 73°F | 14°C / 58°F | 92 mm | 79% | 69% |
| July | 26°C / 79°F | 17°C / 62°F | 64 mm | 76% | 65% |
| August | 27°C / 81°F | 17°C / 62°F | 49 mm | 71% | 65% |
| September | 25°C / 77°F | 15°C / 59°F | 63 mm | 71% | 63% |
| October | 21°C / 69°F | 12°C / 54°F | 88 mm | 76% | 68% |
| November | 15°C / 58°F | 8°C / 47°F | 151 mm | 84% | 76% |
| December | 12°C / 54°F | 6°C / 43°F | 121 mm | 86% | 75% |
What to pack for December
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is December a good time to visit Biarritz?
Compare the months in the chart above to find your ideal window.
Best time to visit Biarritz →Other France cities in December
Cite or embed this data
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Biarritz weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/france/biarritz/december
<a href="https://weathercompare.eu/weather/france/biarritz/december">Biarritz weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/france/biarritz" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Biarritz weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/france/biarritz/december">Biarritz weather in December</a> – WeatherCompare</p>
Biarritz in December: quick answers
Is December a good time to visit Biarritz?
December is cool in Biarritz, with highs around 12°C. Better for museums and city walks than the beach, and usually quieter.
How warm is Biarritz in December?
Average highs are about 12°C (54°F) and average lows about 6°C (43°F), based on 10 years of daily data.
Does it rain a lot in Biarritz in December?
Biarritz typically gets around 121 mm of rain in December — wet.
Figures are long-term averages for the area around Biarritz (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.