Fog in Richmond, NSW

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 36 hours of dense fog here (10-year average).

Measured at RAAF Base Richmond (YSRI). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
YSRIRAAF Base Richmond324 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 Richmond fogs in

Fog here concentrates in May and June — about 324 hours in a typical year at YSRI, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the YSRI station page.

Fog season

January: ~3 hJanFebruary: ~4 hFebMarch: ~14 hMarApril: ~45 hAprMay: ~66 hMayJune: ~63 hJunJuly: ~50 hJulAugust: ~36 hAugSeptember: ~19 hSepOctober: ~10 hOctNovember: ~6 hNovDecember: ~3 hDec
Fog season runs April through September, peaking in May; fog is mostly a 2 AM–8 AM phenomenon; typically thinning out by 10 AM; 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.