Fog in Curitiba

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 33 hours of dense fog here (10-year average).

Measured at Curitiba-Afonso Pena International Airport (SBCT). This station has climatology and live observations only.

Measuring stations

stationairportfog hours/yrforecast
SBCTCuritiba-Afonso Pena International Airport220 h/yrclimatology
SBBIBacacheri Airport58 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 Curitiba fogs in

Fog here concentrates in July and May — about 220 hours in a typical year at SBCT, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the SBCT station page.

Fog season

January: ~4 hJanFebruary: ~5 hFebMarch: ~10 hMarApril: ~19 hAprMay: ~35 hMayJune: ~32 hJunJuly: ~45 hJulAugust: ~33 hAugSeptember: ~21 hSepOctober: ~8 hOctNovember: ~4 hNovDecember: ~3 hDec
Fog season runs April through September, peaking in July; fog is mostly a midnight–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.