Fog in Les Îles-de-la-Madeleine, QC

daily fog outlook & 2016–2026 climatology
Forecast feed initializing for this station. August typically brings about 2 hours of dense fog here (10-year average).

Measured at Îles-de-la-Madeleine Airport (CYGR). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
CYGRÎles-de-la-Madeleine Airport78 h/yrverifying

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 Les Îles-de-la-Madeleine fogs in

Fog here concentrates in July and April — about 78 hours in a typical year at CYGR, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYGR station page.

Fog season

January: ~7 hJanFebruary: ~6 hFebMarch: ~6 hMarApril: ~9 hAprMay: ~5 hMayJune: ~9 hJunJuly: ~57 hJulAugust: ~2 hAugSeptember: ~3 hSepOctober: ~1 hOctNovember: ~5 hNovDecember: ~2 hDec
Fog season is July, peaking in July; fog is mostly a 3 AM–5 AM phenomenon; typically thinning out by 6 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.