Fog in Paris (Roissy-en-France, Val-d'Oise)

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 Charles de Gaulle International Airport (LFPG). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
LFPGCharles de Gaulle International Airport108 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 Paris (Roissy-en-France, Val-d'Oise) fogs in

Fog here concentrates in December and January — about 108 hours in a typical year at LFPG, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the LFPG station page.

Fog season

January: ~29 hJanFebruary: ~8 hFebMarch: ~3 hMarApril: ~1 hAprMay: ~2 hMayJune: ~2 hJunJuly: ~0 hJulAugust: ~1 hAugSeptember: ~1 hSepOctober: ~11 hOctNovember: ~18 hNovDecember: ~33 hDec
Fog season runs October through January, peaking in December; fog is mostly a 1 AM–11 AM phenomenon; typically thinning out by 2 PM; 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.