Fog in Monbetsu

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 Monbetsu Airport (RJEB). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
RJEBMonbetsu Airport45 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 Monbetsu fogs in

Fog here concentrates in January and February — about 45 hours in a typical year at RJEB, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the RJEB station page.

Fog season

January: ~3 hJanFebruary: ~2 hFebMarch: ~1 hMarApril: ~1 hAprMay: ~1 hMayJune: ~2 hJunJuly: ~2 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~0 hOctNovember: ~0 hNovDecember: ~2 hDec
Fog season is January, February, June, July, December, peaking in January; fog is mostly a 9 AM–11 AM phenomenon; typically thinning out by 5 PM; 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.