Fog in Waterford

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 12 hours of dense fog here (10-year average).

Measured at Waterford Airport (EIWF). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EIWFWaterford Airport178 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 Waterford fogs in

Fog here concentrates in November and February — about 178 hours in a typical year at EIWF, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EIWF station page.

Fog season

January: ~20 hJanFebruary: ~20 hFebMarch: ~12 hMarApril: ~9 hAprMay: ~5 hMayJune: ~7 hJunJuly: ~18 hJulAugust: ~12 hAugSeptember: ~8 hSepOctober: ~6 hOctNovember: ~21 hNovDecember: ~14 hDec
Fog season runs June through April, peaking in November; fog is mostly a 9 PM–9 PM phenomenon; typically thinning out by 10 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.