Fog in Semarang

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in August (10-year average).

Measured at Jenderal Ahmad Yani Airport (WAHS). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
WAHSJenderal Ahmad Yani Airport20 h/yrclimatology

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 Semarang fogs in

Fog here concentrates in January and February — about 20 hours in a typical year at WAHS, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the WAHS station page.

Fog season

January: ~3 hJanFebruary: ~3 hFebMarch: ~2 hMarApril: ~1 hAprMay: ~2 hMayJune: ~2 hJunJuly: ~1 hJulAugust: ~0 hAugSeptember: ~1 hSepOctober: ~1 hOctNovember: ~2 hNovDecember: ~2 hDec
Fog season is January, February, March, May, June, November, December, peaking in January; fog is mostly a 5 PM–5 PM phenomenon; typically thinning out by 7 PM; 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.