Fog in Poitiers/Biard

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in August (10-year average).

Measured at Poitiers-Biard Airport (LFBI). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
LFBIPoitiers-Biard Airport119 h/yrclimatology

Fog is measured where instruments live — airports. Hours/yr = time below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), the aviation definition of seriously dense fog.

When Poitiers/Biard fogs in

Fog here concentrates in December and November — about 119 hours in a typical year at LFBI, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the LFBI station page.

Fog season

January: ~21 hJanFebruary: ~13 hFebMarch: ~3 hMarApril: ~1 hAprMay: ~3 hMayJune: ~0 hJunJuly: ~1 hJulAugust: ~0 hAugSeptember: ~3 hSepOctober: ~13 hOctNovember: ~30 hNovDecember: ~34 hDec
Fog season runs October through February, peaking in December; fog is mostly a 11 PM–11 AM phenomenon; typically thinning out by 1 PM; a typical event lasts about 2 hours once it forms local time · 10-yr average

Machine access: data.json · llms.txt · forecast verification. Not for operational use.