Fog in Izumo

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in August (10-year average).

Measured at Izumo Enmusubi Airport (RJOC). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
RJOCIzumo Enmusubi Airport22 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 Izumo fogs in

Fog here concentrates in February and December — about 22 hours in a typical year at RJOC, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the RJOC station page.

Fog season

January: ~4 hJanFebruary: ~6 hFebMarch: ~5 hMarApril: ~1 hAprMay: ~1 hMayJune: ~2 hJunJuly: ~1 hJulAugust: ~0 hAugSeptember: ~1 hSepOctober: ~3 hOctNovember: ~5 hNovDecember: ~5 hDec
Fog season is January, February, March, June, October, November, December, peaking in February; fog is mostly a 1 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.