Fog in Southampton

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 1 hour of dense fog here (10-year average).

Measured at Southampton Airport (EGHI). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EGHISouthampton Airport55 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 Southampton fogs in

Fog here concentrates in December and January — about 55 hours in a typical year at EGHI, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EGHI station page.

Fog season

January: ~18 hJanFebruary: ~12 hFebMarch: ~4 hMarApril: ~2 hAprMay: ~4 hMayJune: ~3 hJunJuly: ~3 hJulAugust: ~1 hAugSeptember: ~2 hSepOctober: ~4 hOctNovember: ~8 hNovDecember: ~38 hDec
Fog season runs December through February, peaking in December; fog is mostly a 1 AM–4 AM phenomenon; typically thinning out by 8 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.