Fog in Masuda

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 Iwami Airport (RJOW). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
RJOWIwami Airport12 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 Masuda fogs in

Fog here concentrates in April and August — about 12 hours in a typical year at RJOW, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the RJOW station page.

Fog season

January: ~1 hJanFebruary: ~1 hFebMarch: ~1 hMarApril: ~1 hAprMay: ~1 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~1 hAugSeptember: ~0 hSepOctober: ~0 hOctNovember: ~0 hNovDecember: ~0 hDec
Masuda has no real fog season — dense fog is rare in every month (under 2 hours even in the peak month).

Machine access: data.json · llms.txt · forecast verification. Not for operational use.