Fog in Omitama

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 3 hours of dense fog here (10-year average).

Measured at Ibaraki Airport (RJAH). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
RJAHIbaraki Airport72 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 Omitama fogs in

Fog here concentrates in November and July — about 72 hours in a typical year at RJAH, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the RJAH station page.

Fog season

January: ~4 hJanFebruary: ~3 hFebMarch: ~5 hMarApril: ~8 hAprMay: ~4 hMayJune: ~6 hJunJuly: ~11 hJulAugust: ~3 hAugSeptember: ~4 hSepOctober: ~4 hOctNovember: ~12 hNovDecember: ~8 hDec
Fog season is year-round, peaking in November; fog is mostly a 2 AM–7 AM phenomenon; typically thinning out by 8 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.