Fog in Klawock, AK

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. August typically brings about 13 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

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

Measuring station

stationairportfog hours/yrforecast
PAKWKlawock Airport84 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 Klawock fogs in

Fog here concentrates in September and October — about 84 hours in a typical year at PAKW, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the PAKW station page.

Fog season

January: ~5 hJanFebruary: ~4 hFebMarch: ~3 hMarApril: ~5 hAprMay: ~7 hMayJune: ~5 hJunJuly: ~6 hJulAugust: ~13 hAugSeptember: ~17 hSepOctober: ~14 hOctNovember: ~4 hNovDecember: ~4 hDec
Fog season is January, April, May, June, July, August, September, October, peaking in September; fog is mostly a 3 AM–7 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.