Fog in Franceville

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 1 hour of dense fog here (10-year average).

Measured at M'Vengue El Hadj Omar Bongo Ondimba International Airport (FOON). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
FOONM'Vengue El Hadj Omar Bongo Ondimba International Airport174 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 Franceville fogs in

Fog here concentrates in March and May — about 174 hours in a typical year at FOON, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the FOON station page.

Fog season

January: ~9 hJanFebruary: ~8 hFebMarch: ~42 hMarApril: ~11 hAprMay: ~16 hMayJune: ~11 hJunJuly: ~4 hJulAugust: ~1 hAugSeptember: ~4 hSepOctober: ~7 hOctNovember: ~10 hNovDecember: ~14 hDec
Fog season is March, April, May, June, December, peaking in March; fog is mostly a 5 AM–7 AM phenomenon; typically thinning out by 9 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.