Fog in Lappeenranta

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 15 hours of dense fog here (10-year average).

Measured at Lappeenranta Airport (EFLP). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EFLPLappeenranta Airport303 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 Lappeenranta fogs in

Fog here concentrates in December and January — about 303 hours in a typical year at EFLP, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EFLP station page.

Fog season

January: ~51 hJanFebruary: ~23 hFebMarch: ~29 hMarApril: ~15 hAprMay: ~3 hMayJune: ~4 hJunJuly: ~7 hJulAugust: ~15 hAugSeptember: ~28 hSepOctober: ~36 hOctNovember: ~49 hNovDecember: ~54 hDec
Fog season runs August through April, peaking in December; fog is mostly a 10 PM–9 AM phenomenon; 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.