Fog in Zurich

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 3 hours of dense fog here (10-year average).

Measured at Zürich Airport (LSZH). This station has climatology and live observations only.

Measuring stations

stationairportfog hours/yrforecast
LSZHZürich Airport178 h/yrclimatology
LSMDDübendorf Air Base214 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 Zurich fogs in

Fog here concentrates in October and December — about 178 hours in a typical year at LSZH, usually lasting ~3 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the LSZH station page.

Fog season

January: ~24 hJanFebruary: ~17 hFebMarch: ~6 hMarApril: ~2 hAprMay: ~4 hMayJune: ~1 hJunJuly: ~2 hJulAugust: ~3 hAugSeptember: ~12 hSepOctober: ~40 hOctNovember: ~35 hNovDecember: ~38 hDec
Fog season runs September through February, peaking in October; fog is mostly a 1 AM–9 AM phenomenon; typically thinning out by 11 AM; 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.