January in Biarritz — the hardest end of the year
Hardest · 3.8/10January averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 126 mm this is a genuinely wet month: about 18 sunny days in total, and outdoor plans need an indoor fallback.
It scores 3.8/10 here, 10th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Biarritz — 4.7 points higher on the same scale.
February in Biarritz — the hardest end of the year
Hardest · 4.4/10February averages 9°C (49°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 101 mm this is a genuinely wet month: about 19 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.4/10 here, 8th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Biarritz — 4.1 points higher on the same scale.
March in Biarritz — the hardest end of the year
Hardest · 4.4/10March averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 145 mm this is a genuinely wet month: about 25 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.4/10 here, 9th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Biarritz — 4.1 points higher on the same scale.
April in Biarritz — the hardest end of the year
Hardest · 4.6/10April averages 13°C (55°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 131 mm this is a genuinely wet month: about 25 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.6/10 here, 7th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Biarritz — 3.9 points higher on the same scale.
May in Biarritz — workable with trade-offs
Trade-offs · 5.5/10May averages 16°C (61°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 94 mm, so plan one flexible day in three; you still get about 29 sunny days and 14.7 hours of daylight.
It scores 5.5/10 here, 6th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
If your dates are flexible, July is materially better in Biarritz — 3 points higher on the same scale.
June in Biarritz — workable with trade-offs
Trade-offs · 6.9/10June averages 20°C (67°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
At 107 mm this is a genuinely wet month: about 26 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.9/10 here, 3rd of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Biarritz — 1.6 points higher on the same scale.
July in Biarritz — the year's strongest window
Best window · 8.5/10July averages 21°C (70°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 56 mm, so plan one flexible day in three; you still get about 28 sunny days and 15 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Biarritz at 8.5/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
August in Biarritz — reliably good (2nd best month)
Good · 8.4/10August averages 22°C (71°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 76 mm, so plan one flexible day in three; you still get about 28 sunny days and 13.9 hours of daylight.
It scores 8.4/10 here, 2nd of 12 months, against 8.5/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
September in Biarritz — workable with trade-offs
Trade-offs · 6.1/10September averages 19°C (67°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
At 166 mm this is a genuinely wet month: about 26 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.1/10 here, 5th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Biarritz — 2.4 points higher on the same scale.
October in Biarritz — workable with trade-offs
Trade-offs · 6.2/10October averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 108 mm this is a genuinely wet month: about 21 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.2/10 here, 4th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Biarritz — 2.3 points higher on the same scale.
November in Biarritz — the hardest end of the year
Hardest · 3/10November averages 13°C (56°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
242 mm of rain puts this in monsoon territory — about 18 sunny days across the whole month, and multi-day washouts are normal.
It scores 3/10 here, 11th of 12 months, against 8.5/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Biarritz — 5.5 points higher on the same scale.
December in Biarritz — the hardest end of the year
Hardest · 2.9/10December averages 10°C (50°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 147 mm this is a genuinely wet month: about 14 sunny days in total, and outdoor plans need an indoor fallback.
It scores 2.9/10 here, 12th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Biarritz — 5.6 points higher on the same scale.
