Fog in Guarujá

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 7 hours of dense fog here (10-year average).

Measured at Santos Nero Moura Air Base / Guarujá Airport (SBST). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
SBSTSantos Nero Moura Air Base / Guarujá Airport36 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 Guarujá fogs in

Fog here concentrates in August and July — about 36 hours in a typical year at SBST, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the SBST station page.

Fog season

January: ~1 hJanFebruary: ~0 hFebMarch: ~0 hMarApril: ~1 hAprMay: ~0 hMayJune: ~2 hJunJuly: ~5 hJulAugust: ~7 hAugSeptember: ~4 hSepOctober: ~2 hOctNovember: ~0 hNovDecember: ~0 hDec
Fog season runs June through October, peaking in August; fog is mostly a 6 AM–9 AM phenomenon; typically thinning out by 11 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.