Fog in Southend-on-Sea, Essex

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 London Southend Airport (EGMC). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EGMCLondon Southend Airport78 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 Southend-on-Sea, Essex fogs in

Fog here concentrates in December and January — about 78 hours in a typical year at EGMC, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EGMC station page.

Fog season

January: ~12 hJanFebruary: ~10 hFebMarch: ~12 hMarApril: ~8 hAprMay: ~4 hMayJune: ~2 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~2 hSepOctober: ~7 hOctNovember: ~9 hNovDecember: ~22 hDec
Fog season runs October through April, peaking in December; fog is mostly a 10 PM–8 AM phenomenon; typically thinning out by 11 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.