Fog in Brønnøy

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 3 hours of dense fog here (10-year average).

Measured at Brønnøysund Airport; Brønnøy (ENBN). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
ENBNBrønnøysund Airport; Brønnøy28 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 Brønnøy fogs in

Fog here concentrates in July and May — about 28 hours in a typical year at ENBN, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the ENBN station page.

Fog season

January: ~3 hJanFebruary: ~2 hFebMarch: ~2 hMarApril: ~2 hAprMay: ~4 hMayJune: ~2 hJunJuly: ~5 hJulAugust: ~3 hAugSeptember: ~2 hSepOctober: ~0 hOctNovember: ~1 hNovDecember: ~1 hDec
Fog season runs January through September, peaking in July; fog is mostly a 9 PM–6 AM phenomenon; typically thinning out by 8 AM; 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.