Fog in Smithers, BC

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. August typically brings about 4 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Smithers Airport (CYYD). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
CYYDSmithers Airport104 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 Smithers fogs in

Fog here concentrates in October and November — about 104 hours in a typical year at CYYD, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYYD station page.

Fog season

January: ~10 hJanFebruary: ~8 hFebMarch: ~2 hMarApril: ~1 hAprMay: ~4 hMayJune: ~3 hJunJuly: ~6 hJulAugust: ~4 hAugSeptember: ~16 hSepOctober: ~24 hOctNovember: ~18 hNovDecember: ~13 hDec
Fog season is January, February, July, September, October, November, December, peaking in October; fog is mostly a 10 PM–6 AM phenomenon; typically thinning out by 9 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.