Fog in São Paulo
daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 5 hours of dense fog here (10-year average).
Measured at São Paulo/Guarulhos–Governor André Franco Montoro International Airport (SBGR). This station has climatology and live observations only.
Measuring stations
| station | airport | fog hours/yr | forecast |
|---|---|---|---|
| SBGR | São Paulo/Guarulhos–Governor André Franco Montoro International Airport | 45 h/yr | climatology |
| SBSP | Congonhas–Deputado Freitas Nobre Airport | 12 h/yr | climatology |
| SBMT | Campo de Marte Airport | 3 h/yr | climatology |
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 São Paulo fogs in
Fog here concentrates in June and July — about 45 hours in a typical year at SBGR, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the SBGR station page.
Fog season
Fog season runs May through August, peaking in June; fog is mostly a 5 AM–8 AM phenomenon; typically thinning out by 9 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.