Fog in Hamadan

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 Hamadan Airport (OIHH). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
OIHHHamadan Airport62 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 Hamadan fogs in

Fog here concentrates in January and December — about 62 hours in a typical year at OIHH, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the OIHH station page.

Fog season

January: ~19 hJanFebruary: ~12 hFebMarch: ~7 hMarApril: ~0 hAprMay: ~2 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~1 hOctNovember: ~8 hNovDecember: ~14 hDec
Fog season runs November through March, peaking in January; fog is mostly a 3 AM–9 AM phenomenon; typically thinning out by noon; 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.