Fog in Ermelo

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 17 hours of dense fog here (10-year average).

Measured at Ermelo Airport (FAEO). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
FAEOErmelo Airport175 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 Ermelo fogs in

Fog here concentrates in September and May — about 175 hours in a typical year at FAEO, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the FAEO station page.

Fog season

January: ~0 hJanFebruary: ~6 hFebMarch: ~14 hMarApril: ~19 hAprMay: ~19 hMayJune: ~17 hJunJuly: ~1 hJulAugust: ~17 hAugSeptember: ~36 hSepOctober: ~10 hOctNovember: ~17 hNovDecember: ~16 hDec
Fog season is March, April, May, June, August, September, October, November, December, peaking in September; fog is mostly a 5 AM–5 AM phenomenon; typically thinning out by 6 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.