Fog in Guaymas

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 José María Yáñez International Airport (MMGM). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
MMGMGeneral José María Yáñez International Airport8 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 Guaymas fogs in

Fog here concentrates in March and February — about 8 hours in a typical year at MMGM. Hour-by-hour patterns, live conditions and the forecast strip live on the MMGM station page.

Fog season

January: ~1 hJanFebruary: ~3 hFebMarch: ~3 hMarApril: ~1 hAprMay: ~1 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~0 hOctNovember: ~0 hNovDecember: ~0 hDec
Fog season runs February through March, peaking in February; fog is mostly a 5 AM–5 AM phenomenon; typically thinning out by 6 AM local time · 10-yr average

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