Fog in Alert, NU

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 25 hours of dense fog here (10-year average).

Measured at Alert Airport (CYLT). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
CYLTAlert Airport224 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 Alert fogs in

Fog here concentrates in May and October — about 224 hours in a typical year at CYLT, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYLT station page.

Fog season

January: ~16 hJanFebruary: ~7 hFebMarch: ~13 hMarApril: ~14 hAprMay: ~42 hMayJune: ~17 hJunJuly: ~27 hJulAugust: ~25 hAugSeptember: ~21 hSepOctober: ~28 hOctNovember: ~4 hNovDecember: ~16 hDec
Fog season is January, March, April, May, June, July, August, September, October, December, peaking in May; fog here can hit at any hour of the day; 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.