Fog in Halifax, NS

daily fog outlook & 2016–2026 climatology
Fog unlikely through Monday (peak 15%). August typically brings about 30 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Halifax / Stanfield International Airport (CYHZ). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
CYHZHalifax / Stanfield International Airport404 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 Halifax fogs in

Fog here concentrates in June and July — about 404 hours in a typical year at CYHZ, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYHZ station page.

Fog season

January: ~20 hJanFebruary: ~26 hFebMarch: ~41 hMarApril: ~32 hAprMay: ~42 hMayJune: ~65 hJunJuly: ~54 hJulAugust: ~30 hAugSeptember: ~27 hSepOctober: ~24 hOctNovember: ~16 hNovDecember: ~22 hDec
Fog season runs December through October, peaking in June; fog is mostly a 11 PM–9 AM phenomenon; typically thinning out by noon; 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.