Fog in Irkutsk

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 28 hours of dense fog here (10-year average).

Measured at Irkutsk International Airport (UIII). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
UIIIIrkutsk International Airport122 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 Irkutsk fogs in

Fog here concentrates in August and September — about 122 hours in a typical year at UIII, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the UIII station page.

Fog season

January: ~5 hJanFebruary: ~3 hFebMarch: ~3 hMarApril: ~4 hAprMay: ~2 hMayJune: ~13 hJunJuly: ~16 hJulAugust: ~28 hAugSeptember: ~18 hSepOctober: ~10 hOctNovember: ~13 hNovDecember: ~7 hDec
Fog season runs June through December, peaking in August; fog is mostly a 3 AM–8 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 1 hour once it forms local time · 10-yr average

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