Fog in Ishigaki

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 2 hours of dense fog here (10-year average).

Measured at New Ishigaki Airport (ROIG). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
ROIGNew Ishigaki Airport10 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 Ishigaki fogs in

Fog here concentrates in April and September — about 10 hours in a typical year at ROIG, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the ROIG station page.

Fog season

January: ~0 hJanFebruary: ~0 hFebMarch: ~2 hMarApril: ~3 hAprMay: ~2 hMayJune: ~1 hJunJuly: ~1 hJulAugust: ~2 hAugSeptember: ~2 hSepOctober: ~2 hOctNovember: ~0 hNovDecember: ~0 hDec
Fog season is March, April, May, August, September, October, peaking in April; fog is mostly a 4 AM–5 AM phenomenon; typically thinning out by 8 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.