Fog in Perth, WA

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 1 hour of dense fog here (10-year average).

Measured at Perth International Airport (YPPH). This station has climatology and live observations only.

Measuring stations

stationairportfog hours/yrforecast
YPPHPerth International Airport11 h/yrclimatology
YPJTPerth Jandakot Airport49 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 Perth fogs in

Fog here concentrates in September and June — about 11 hours in a typical year at YPPH, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the YPPH station page.

Fog season

January: ~0 hJanFebruary: ~0 hFebMarch: ~0 hMarApril: ~0 hAprMay: ~1 hMayJune: ~2 hJunJuly: ~1 hJulAugust: ~1 hAugSeptember: ~4 hSepOctober: ~1 hOctNovember: ~0 hNovDecember: ~0 hDec
Fog season is June, September, peaking in September; fog is mostly a 5 AM–7 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.