SCTN — Nuevo Chaitén Airport

fog forecast & climatology · Chaitén 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
36 h below CAT I minima (2016–2026 average)
Fog season
February and January
Typical fog event
~1 h once it forms (middle half 1–2 h, n=150)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Nuevo Chaitén Airport spends 36 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in February and January. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~6 hJanFebruary: ~7 hFebMarch: ~6 hMarApril: ~2 hAprMay: ~4 hMayJune: ~2 hJunJuly: ~1 hJulAugust: ~1 hAugSeptember: ~0 hSepOctober: ~2 hOctNovember: ~1 hNovDecember: ~4 hDec
Fog season is January, February, March, April, May, June, October, December, peaking in February; fog is mostly a 9 AM–10 AM phenomenon; typically thinning out by 1 PM; a typical event lasts about 1 hour 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.