Fog in Augusta, ME

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. August typically brings about 15 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Augusta State Airport (KAUG). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
KAUGAugusta State Airport190 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 Augusta fogs in

Fog here concentrates in March and December — about 190 hours in a typical year at KAUG, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KAUG station page.

Fog season

January: ~12 hJanFebruary: ~17 hFebMarch: ~26 hMarApril: ~10 hAprMay: ~12 hMayJune: ~12 hJunJuly: ~16 hJulAugust: ~15 hAugSeptember: ~19 hSepOctober: ~20 hOctNovember: ~9 hNovDecember: ~23 hDec
Fog season is year-round, peaking in March; fog is mostly a 2 AM–7 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.