Fog in St. Peter

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 18 hours of dense fog here (10-year average).

Measured at Jersey Airport (EGJJ). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EGJJJersey Airport255 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 St. Peter fogs in

Fog here concentrates in February and June — about 255 hours in a typical year at EGJJ, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EGJJ station page.

Fog season

January: ~32 hJanFebruary: ~33 hFebMarch: ~25 hMarApril: ~12 hAprMay: ~22 hMayJune: ~32 hJunJuly: ~21 hJulAugust: ~18 hAugSeptember: ~8 hSepOctober: ~8 hOctNovember: ~15 hNovDecember: ~27 hDec
Fog season runs November through August, peaking in February; fog here can hit at any hour of the day; 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.