Fog in Köln (Cologne)

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 Cologne Bonn Airport (EDDK). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EDDKCologne Bonn Airport22 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 Köln (Cologne) fogs in

Fog here concentrates in January and December — about 22 hours in a typical year at EDDK, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EDDK station page.

Fog season

January: ~6 hJanFebruary: ~1 hFebMarch: ~0 hMarApril: ~1 hAprMay: ~1 hMayJune: ~1 hJunJuly: ~0 hJulAugust: ~1 hAugSeptember: ~2 hSepOctober: ~4 hOctNovember: ~2 hNovDecember: ~4 hDec
Fog season runs September through January, peaking in January; fog is mostly a 6 AM–10 AM phenomenon; typically thinning out by 11 AM; 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.