Fog in Santa Cruz

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 Viru Viru International Airport (SLVR). This station has climatology and live observations only.

Measuring stations

stationairportfog hours/yrforecast
SLVRViru Viru International Airport10 h/yrclimatology
SLETEl Trompillo Airport11 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 Santa Cruz fogs in

Fog here concentrates in April and February — about 10 hours in a typical year at SLVR, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the SLVR station page.

Fog season

January: ~1 hJanFebruary: ~1 hFebMarch: ~1 hMarApril: ~2 hAprMay: ~1 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~1 hAugSeptember: ~0 hSepOctober: ~1 hOctNovember: ~1 hNovDecember: ~1 hDec
Fog season is April, peaking in April; fog is mostly a 2 AM–4 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.