Fog in Posadas

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 4 hours of dense fog here (10-year average).

Measured at Libertador Gral D Jose De San Martin Airport (SARP). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
SARPLibertador Gral D Jose De San Martin Airport39 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 Posadas fogs in

Fog here concentrates in June and May — about 39 hours in a typical year at SARP, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the SARP station page.

Fog season

January: ~0 hJanFebruary: ~1 hFebMarch: ~1 hMarApril: ~2 hAprMay: ~10 hMayJune: ~12 hJunJuly: ~5 hJulAugust: ~4 hAugSeptember: ~3 hSepOctober: ~1 hOctNovember: ~1 hNovDecember: ~1 hDec
Fog season runs May through September, peaking in June; fog is mostly a 5 AM–9 AM phenomenon; typically thinning out by 10 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.