Fog in Santiago de Compostela

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 18 hours of dense fog here (10-year average).

Measured at Santiago-Rosalía de Castro Airport (LEST). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
LESTSantiago-Rosalía de Castro Airport197 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 Santiago de Compostela fogs in

Fog here concentrates in December and September — about 197 hours in a typical year at LEST, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the LEST station page.

Fog season

January: ~23 hJanFebruary: ~13 hFebMarch: ~11 hMarApril: ~12 hAprMay: ~13 hMayJune: ~13 hJunJuly: ~14 hJulAugust: ~18 hAugSeptember: ~24 hSepOctober: ~18 hOctNovember: ~16 hNovDecember: ~25 hDec
Fog season is year-round, peaking in December; fog is mostly a 3 AM–10 AM phenomenon; typically thinning out by noon; 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.