Fog in Sliač

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 12 hours of dense fog here (10-year average).

Measured at Sliač Airport (LZSL). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
LZSLSliač Airport385 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 Sliač fogs in

Fog here concentrates in October and January — about 385 hours in a typical year at LZSL, usually lasting ~3 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the LZSL station page.

Fog season

January: ~74 hJanFebruary: ~32 hFebMarch: ~10 hMarApril: ~4 hAprMay: ~14 hMayJune: ~9 hJunJuly: ~8 hJulAugust: ~12 hAugSeptember: ~40 hSepOctober: ~80 hOctNovember: ~59 hNovDecember: ~43 hDec
Fog season runs September through February, peaking in October; fog is mostly a 3 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.