Fog in Sado

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 Sado Airport (RJSD). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
RJSDSado Airport26 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 Sado fogs in

Fog here concentrates in June and July — about 26 hours in a typical year at RJSD, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the RJSD station page.

Fog season

January: ~1 hJanFebruary: ~2 hFebMarch: ~1 hMarApril: ~1 hAprMay: ~3 hMayJune: ~6 hJunJuly: ~6 hJulAugust: ~0 hAugSeptember: ~1 hSepOctober: ~1 hOctNovember: ~0 hNovDecember: ~0 hDec
Fog season is February, May, June, July, peaking in June; fog is mostly a 4 AM–4 AM phenomenon; typically thinning out by 6 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.