Fog in Timmins, ON

daily fog outlook & 2016–2026 climatology
Fog possible — NWS guidance shows a fog signal in the next 48 hours. August typically brings about 3 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Timmins/Victor M. Power (CYTS). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
CYTSTimmins/Victor M. Power29 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 Timmins fogs in

Fog here concentrates in September and November — about 29 hours in a typical year at CYTS, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYTS station page.

Fog season

January: ~1 hJanFebruary: ~1 hFebMarch: ~2 hMarApril: ~2 hAprMay: ~1 hMayJune: ~1 hJunJuly: ~1 hJulAugust: ~3 hAugSeptember: ~6 hSepOctober: ~4 hOctNovember: ~4 hNovDecember: ~3 hDec
Fog season is March, April, August, September, October, November, December, peaking in September; fog is mostly a 5 AM–9 AM phenomenon; typically thinning out by noon; 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.