LFBZ — Biarritz Pays Basque airport

fog forecast & climatology · Biarritz city page · full 10-year analysis →
No fog forecast feed exists for this station. September typically brings about 1 hour of dense fog here (10-year average).

Fog hours per year
71 h below CAT I minima (2016–2026 average)
Fog season
December and January
Typical fog event
~2 h once it forms (middle half 1–4 h, n=210)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Biarritz Pays Basque airport spends 71 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in December and January. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~20 hJanFebruary: ~3 hFebMarch: ~2 hMarApril: ~1 hAprMay: ~1 hMayJune: ~1 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~1 hSepOctober: ~12 hOctNovember: ~7 hNovDecember: ~23 hDec
Fog season runs October through January, peaking in December; fog is mostly a midnight–11 AM phenomenon; typically thinning out by 1 PM; a typical event lasts about 2 hours once it forms local time · 10-yr average

For flight operations

EFVS crews: the CHASE board ranks airports by live fog status, approach lighting, go-around height and flight time from your base. Forecast probabilities publish here per-airport once the calibrated model beats climatology on live verification — receipts on the scorecard. Methodology.

Sources: NOAA/NWS National Blend of Models guidance · METAR observations 2016–2026 (Iowa Environmental Mesonet) · FAA NASR. Machine access: data.json · llms.txt. Not for operational use.