Fog in Tulcán

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 Lieutenant Colonel Luis A. Mantilla International Airport (SETU). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
SETULieutenant Colonel Luis A. Mantilla International 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 Tulcán fogs in

Fog here concentrates in December and February — about 11 hours in a typical year at SETU. Hour-by-hour patterns, live conditions and the forecast strip live on the SETU station page.

Fog season

January: ~2 hJanFebruary: ~3 hFebMarch: ~1 hMarApril: ~1 hAprMay: ~2 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~0 hOctNovember: ~2 hNovDecember: ~3 hDec
Fog season is January, February, May, November, December, peaking in February; fog is mostly a 6 AM–7 AM phenomenon; typically thinning out by 8 AM local time · 10-yr average

Machine access: data.json · llms.txt · forecast verification. Not for operational use.