Fog in Mont-Joli, QC

daily fog outlook & 2016–2026 climatology
Fog unlikely through Sunday (peak 2%). August typically brings about 5 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Mont Joli Airport (CYYY). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
CYYYMont Joli Airport82 h/yrlive forecast

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 Mont-Joli fogs in

Fog here concentrates in June and April — about 82 hours in a typical year at CYYY, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYYY station page.

Fog season

January: ~9 hJanFebruary: ~7 hFebMarch: ~9 hMarApril: ~10 hAprMay: ~4 hMayJune: ~13 hJunJuly: ~9 hJulAugust: ~5 hAugSeptember: ~7 hSepOctober: ~4 hOctNovember: ~1 hNovDecember: ~3 hDec
Fog season runs January through October, peaking in June; fog here can hit at any hour of the day; 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.