Fog in Nowshahr

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 Nowshahr Airport (OINN). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
OINNNowshahr Airport24 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 Nowshahr fogs in

Fog here concentrates in March and February — about 24 hours in a typical year at OINN, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the OINN station page.

Fog season

January: ~4 hJanFebruary: ~5 hFebMarch: ~11 hMarApril: ~2 hAprMay: ~1 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~0 hOctNovember: ~1 hNovDecember: ~0 hDec
Fog season runs January through March, peaking in March; fog is mostly a 1 AM–9 AM phenomenon; typically thinning out by 10 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.