France
Aquitaine · Bay of Biscay

Plage Sud Vieux-Boucau Water Temperature & Swim Forecast

Family Landes beach.

Mild water with a light chop and a light breeze — comfortable conditions for most swimmers.

Sea temperature now
18.7°Cmild
Good
Source: Open-Meteo Marine

Model estimate · modelled, not a buoy measurement. How accurate is this?

Air temperature
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Wave height
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Wind
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UV index
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Location

Plage Sud Vieux-Boucau on the map, with nearby beaches and live sea temperatures.

7-day forecast

Water, air, waves, wind and UV outlook for the week ahead.

Wetsuit recommendation

3/2mm fullsuit

At 18.7°C a 3/2mm fullsuit is the standard wetsuit for surfing and watersports.

Surf & watersports
Spring/autumn conditions in temperate seas. A 3/2mm full wetsuit (3mm torso, 2mm limbs) is the most versatile thickness — warm enough for 2-hour sessions, flexible enough for paddling. Open-water swimmers should wear a triathlon-cut swim wetsuit.
Open-water swimming
A triathlon-style swim wetsuit keeps you warm for 45–60 minutes.

Recommendation tuned for Plage Sud Vieux-Boucau's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.

Plage Sud Vieux-Boucau swimming conditions summary

Water temperature
18.7°C
Water feels
Refreshing
Swimmable today
Yes, but fresh — short swims or a wetsuit
Swim conditions score
69/100 · Good
Wetsuit needed
3/2mm fullsuit
Air temperature
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Waves
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Wind
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UV index
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Average sea temperature (October)
19.0 °C
Warmest months to swim
July, August, September

At 18.7°C a 3/2mm fullsuit is the standard wetsuit for surfing and watersports. Model estimate. Water, wave, wind and UV values are Open-Meteo marine/weather model estimates, refreshed hourly — not buoy measurements.

Frequently asked questions

Can I swim at Plage Sud Vieux-Boucau right now?

The sea at Plage Sud Vieux-Boucau is currently 18.7°C — fresh swimming conditions. Most swimmers will find the water comfortable when it's above 22°C; below 18°C feels fresh and a wetsuit is recommended.

What will the sea temperature be at Plage Sud Vieux-Boucau next week?

Based on long-term October averages and the latest marine model, expect the sea around Plage Sud Vieux-Boucau to sit close to 19.0°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.

When is the best month to swim at Plage Sud Vieux-Boucau?

July – August – September are typically the warmest months to swim at Plage Sud Vieux-Boucau, with sea temperatures at their seasonal peak.

Do I need a wetsuit at Plage Sud Vieux-Boucau?

With water currently at 18.7°C: above 22°C no wetsuit needed; 18–22°C a shorty is comfortable for long swims; 14–18°C a 3/2mm full suit; below 14°C a 4/3mm or thicker.

Quick answer

Can I swim at Plage Sud Vieux-Boucau today?

The sea is currently 18.7°C — good swimming conditions. Most swimmers will find it pleasant.

Key takeaways
  • • Located in Aquitaine, France (Bay of Biscay).
  • • Family friendly with calm, accessible water.
  • • Live data refreshed hourly from Open-Meteo Marine.

Monthly sea temperature averages

Tap any month to see what to expect — based on regional climatology.

13°C → 24°C· Current month outlined· “Best” = within 2°C of the annual peak

Best time to swim in Plage Sud Vieux-Boucau

The sea in Plage Sud Vieux-Boucau peaks in August, when the water averages around 24°C.

The main swimming season runs from June – September, when surface temperatures stay comfortable for extended sessions.

On average, 4 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.

Shoulder months like May and October are noticeably cooler but often quieter, with fewer crowds and steadier weather.

Outside peak season the water drops toward 15°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.

The coldest month is typically January at around 13°C, when cold-water swimmers dominate the coast.

Plage Sud Vieux-Boucau sea temperature history

Long-term climatology for Plage Sud Vieux-Boucau shows an annual mean sea temperature of 17°C, ranging from 13°C in winter to 24°C at the summer peak.

The seasonal swing is roughly 11°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.

Recent decades have trended slightly warmer at Plage Sud Vieux-Boucau, in line with regional sea-surface temperature records for the wider basin.

Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.

Jan
13°C
Feb
13°C
Mar
13°C
Apr
14°C
May
17°C
Jun
20°C
Jul
23°C
Aug
24°C
Sep
22°C
Oct
19°C
Nov
16°C
Dec
14°C

Plage Sud Vieux-Boucau sea temperature: frequently asked questions

What is the warmest month to swim in Plage Sud Vieux-Boucau?

August is the warmest month in Plage Sud Vieux-Boucau, when the sea averages about 24°C. Late-season warmth often persists a few weeks after peak.

When is the sea coldest in Plage Sud Vieux-Boucau?

The coldest month in Plage Sud Vieux-Boucau is typically January, when the water averages around 13°C. Cold-water swimmers and surfers dominate this period.

When can you swim in Plage Sud Vieux-Boucau without a wetsuit?

The main swimming season in Plage Sud Vieux-Boucau runs from June – September — about 4 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.

Do I need a wetsuit in Plage Sud Vieux-Boucau?

Outside peak summer the water in Plage Sud Vieux-Boucau drops toward 15°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.

What is the average sea temperature in Plage Sud Vieux-Boucau?

The long-term annual mean sea temperature in Plage Sud Vieux-Boucau is about 17°C, based on multi-decadal climatology of the surrounding waters.

How do I check the current sea temperature in Plage Sud Vieux-Boucau?

The live reading at the top of this page shows the current sea temperature in Plage Sud Vieux-Boucau, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.

Year-round sea temperature

Best swim months: Jun – Jul – Aug – Sep

MonthSeaComfort
Jan13°CCold
Feb13°CCold
Mar13°CCold
Apr14°CBracing
May17°CBracing
Jun20°CPleasant
Jul23°CWarm
Aug ⭐24°CWarm
Sep22°CWarm
Oct19°CPleasant
Nov16°CBracing
Dec14°CBracing

Nearby beaches

The closest coastline, with live water temperatures.