Fog in Hachinohe

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 19 hours of dense fog here (10-year average).

Measured at JMSDF Hachinohe Air Base / Hachinohe Airport (RJSH). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
RJSHJMSDF Hachinohe Air Base / Hachinohe Airport250 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 Hachinohe fogs in

Fog here concentrates in June and October — about 250 hours in a typical year at RJSH, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the RJSH station page.

Fog season

January: ~17 hJanFebruary: ~6 hFebMarch: ~8 hMarApril: ~15 hAprMay: ~24 hMayJune: ~62 hJunJuly: ~33 hJulAugust: ~19 hAugSeptember: ~23 hSepOctober: ~35 hOctNovember: ~15 hNovDecember: ~14 hDec
Fog season is January, May, June, July, August, September, October, peaking in June; fog is mostly a 3 AM–4 AM phenomenon; typically thinning out by 7 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.