Fog in Los Mochis

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 Valle del Fuerte International Airport (MMLM). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
MMLMValle del Fuerte International Airport54 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 Los Mochis fogs in

Fog here concentrates in December and May — about 54 hours in a typical year at MMLM, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the MMLM station page.

Fog season

January: ~10 hJanFebruary: ~6 hFebMarch: ~7 hMarApril: ~3 hAprMay: ~18 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~4 hOctNovember: ~5 hNovDecember: ~39 hDec
Fog season is January, May, December, peaking in December; 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.