Fog in Kokkola / Kruunupyy

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 Kokkola-Pietarsaari Airport (EFKK). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EFKKKokkola-Pietarsaari Airport152 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 Kokkola / Kruunupyy fogs in

Fog here concentrates in October and September — about 152 hours in a typical year at EFKK, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EFKK station page.

Fog season

January: ~17 hJanFebruary: ~14 hFebMarch: ~10 hMarApril: ~8 hAprMay: ~7 hMayJune: ~6 hJunJuly: ~9 hJulAugust: ~12 hAugSeptember: ~19 hSepOctober: ~20 hOctNovember: ~17 hNovDecember: ~16 hDec
Fog season is year-round, peaking in October; fog is mostly a 1 AM–9 AM phenomenon; typically thinning out by 1 PM; 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.