Fog in Kaluga

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 19 hours of dense fog here (10-year average).

Measured at Grabtsevo Airport (UUBC). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
UUBCGrabtsevo Airport140 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 Kaluga fogs in

Fog here concentrates in November and August — about 140 hours in a typical year at UUBC, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the UUBC station page.

Fog season

January: ~6 hJanFebruary: ~9 hFebMarch: ~10 hMarApril: ~4 hAprMay: ~9 hMayJune: ~8 hJunJuly: ~11 hJulAugust: ~19 hAugSeptember: ~14 hSepOctober: ~16 hOctNovember: ~20 hNovDecember: ~18 hDec
Fog season runs May through March, peaking in November; fog is mostly a midnight–7 AM phenomenon; typically thinning out by 10 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.