Fog in Matamoros

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. dense fog (visibility under a mile) is rare here in August.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at General Servando Canales International Airport (MMMA). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
MMMAGeneral Servando Canales International Airport51 h/yrverifying

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 Matamoros fogs in

Fog here concentrates in January and December — about 51 hours in a typical year at MMMA, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the MMMA station page.

Fog season

January: ~24 hJanFebruary: ~6 hFebMarch: ~4 hMarApril: ~2 hAprMay: ~1 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~2 hOctNovember: ~5 hNovDecember: ~23 hDec
Fog season runs December through February, peaking in January; fog is mostly a 5 AM–5 AM phenomenon; typically thinning out by 8 AM; a typical event lasts about 1 hour once it forms local time · 10-yr average

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