LIRN — Naples International Airport

fog forecast & climatology · Napoli city page · full 10-year analysis →
No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in September (10-year average).

Fog hours per year
10 h below CAT I minima (2016–2026 average)
Fog season
January and February
Typical fog event
~2 h once it forms (middle half 1–3 h, n=35)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Naples International Airport spends 10 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in January and February. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~3 hJanFebruary: ~3 hFebMarch: ~0 hMarApril: ~1 hAprMay: ~0 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~1 hOctNovember: ~0 hNovDecember: ~1 hDec
Fog season runs January through February, peaking in January; fog is mostly a midnight–6 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 2 hours once it forms local time · 10-yr average

For flight operations

EFVS crews: the CHASE board ranks airports by live fog status, approach lighting, go-around height and flight time from your base. Forecast probabilities publish here per-airport once the calibrated model beats climatology on live verification — receipts on the scorecard. Methodology.

Sources: NOAA/NWS National Blend of Models guidance · METAR observations 2016–2026 (Iowa Environmental Mesonet) · FAA NASR. Machine access: data.json · llms.txt. Not for operational use.