Fog in Formosa

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 3 hours of dense fog here (10-year average).

Measured at Formosa National Airport (SARF). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
SARFFormosa National Airport44 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 Formosa fogs in

Fog here concentrates in June and May — about 44 hours in a typical year at SARF, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the SARF station page.

Fog season

January: ~1 hJanFebruary: ~0 hFebMarch: ~1 hMarApril: ~4 hAprMay: ~9 hMayJune: ~11 hJunJuly: ~5 hJulAugust: ~3 hAugSeptember: ~4 hSepOctober: ~4 hOctNovember: ~1 hNovDecember: ~1 hDec
Fog season runs April through October, peaking in June; fog is mostly a 4 AM–8 AM phenomenon; typically thinning out by 10 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.