Fog in Zaventem

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 1 hour of dense fog here (10-year average).

Measured at Brussels Airport (EBBR). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EBBRBrussels Airport73 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 Zaventem fogs in

Fog here concentrates in January and December — about 73 hours in a typical year at EBBR, usually lasting ~3 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EBBR station page.

Fog season

January: ~19 hJanFebruary: ~5 hFebMarch: ~7 hMarApril: ~2 hAprMay: ~2 hMayJune: ~2 hJunJuly: ~0 hJulAugust: ~1 hAugSeptember: ~2 hSepOctober: ~5 hOctNovember: ~11 hNovDecember: ~16 hDec
Fog season runs October through March, peaking in January; fog is mostly a 3 AM–10 AM phenomenon; typically thinning out by noon; a typical event lasts about 3 hours once it forms local time · 10-yr average

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