Fog in Foz do Iguaçu

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 6 hours of dense fog here (10-year average).

Measured at Cataratas International Airport (SBFI). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
SBFICataratas International Airport97 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 Foz do Iguaçu fogs in

Fog here concentrates in June and May — about 97 hours in a typical year at SBFI, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the SBFI station page.

Fog season

January: ~4 hJanFebruary: ~2 hFebMarch: ~6 hMarApril: ~9 hAprMay: ~16 hMayJune: ~24 hJunJuly: ~11 hJulAugust: ~6 hAugSeptember: ~7 hSepOctober: ~4 hOctNovember: ~3 hNovDecember: ~3 hDec
Fog season runs March through September, peaking in June; fog is mostly a 4 AM–8 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.