Fog in Mount Pleasant

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 Mount Pleasant Airport / RAF Mount Pleasant (EGYP). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EGYPMount Pleasant Airport / RAF Mount Pleasant74 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 Mount Pleasant fogs in

Fog here concentrates in June and August — about 74 hours in a typical year at EGYP, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EGYP station page.

Fog season

January: ~2 hJanFebruary: ~5 hFebMarch: ~6 hMarApril: ~3 hAprMay: ~8 hMayJune: ~12 hJunJuly: ~9 hJulAugust: ~12 hAugSeptember: ~7 hSepOctober: ~3 hOctNovember: ~4 hNovDecember: ~4 hDec
Fog season runs February through December, peaking in June; fog is mostly a 8 PM–8 AM phenomenon; typically thinning out by noon; 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.