Fog in Oiapoque

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 27 hours of dense fog here (10-year average).

Measured at Oiapoque Airport (SBOI). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
SBOIOiapoque Airport143 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 Oiapoque fogs in

Fog here concentrates in July and June — about 143 hours in a typical year at SBOI, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the SBOI station page.

Fog season

January: ~12 hJanFebruary: ~4 hFebMarch: ~5 hMarApril: ~20 hAprMay: ~31 hMayJune: ~40 hJunJuly: ~47 hJulAugust: ~27 hAugSeptember: ~15 hSepOctober: ~20 hOctNovember: ~19 hNovDecember: ~18 hDec
Fog season runs April through January, peaking in July; fog is mostly a 3 AM–7 AM phenomenon; typically thinning out by 8 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.