Fog in Ronchi dei Legionari/Trieste

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in August (10-year average).

Measured at Trieste Airport (LIPQ). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
LIPQTrieste Airport120 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 Ronchi dei Legionari/Trieste fogs in

Fog here concentrates in February and December — about 120 hours in a typical year at LIPQ, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the LIPQ station page.

Fog season

January: ~25 hJanFebruary: ~27 hFebMarch: ~9 hMarApril: ~1 hAprMay: ~1 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~1 hSepOctober: ~15 hOctNovember: ~16 hNovDecember: ~26 hDec
Fog season runs October through March, peaking in February; fog is mostly a 7 PM–7 AM phenomenon; typically thinning out by 9 AM; 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.