Fog in Tofino, BC

daily fog outlook & 2016–2026 climatology
Fog possible — NWS guidance shows a fog signal in the next 48 hours. August typically brings about 27 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Tofino / Long Beach Airport (CYAZ). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
CYAZTofino / Long Beach Airport237 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 Tofino fogs in

Fog here concentrates in August and July — about 237 hours in a typical year at CYAZ, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYAZ station page.

Fog season

January: ~6 hJanFebruary: ~5 hFebMarch: ~9 hMarApril: ~4 hAprMay: ~8 hMayJune: ~6 hJunJuly: ~22 hJulAugust: ~27 hAugSeptember: ~19 hSepOctober: ~7 hOctNovember: ~5 hNovDecember: ~4 hDec
Fog season is March, May, July, August, September, October, peaking in August; fog is mostly a 6 AM–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.