Fog in Bryansk

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 5 hours of dense fog here (10-year average).

Measured at Bryansk International Airport (UUBP). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
UUBPBryansk International Airport164 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 Bryansk fogs in

Fog here concentrates in December and November — about 164 hours in a typical year at UUBP, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the UUBP station page.

Fog season

January: ~9 hJanFebruary: ~12 hFebMarch: ~10 hMarApril: ~7 hAprMay: ~2 hMayJune: ~3 hJunJuly: ~4 hJulAugust: ~5 hAugSeptember: ~16 hSepOctober: ~17 hOctNovember: ~33 hNovDecember: ~46 hDec
Fog season is February, September, October, November, December, peaking in December; fog is mostly a 1 AM–11 AM phenomenon; typically thinning out by 3 PM; 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.