Fog in Payerne

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 Payerne Air Base (LSMP). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
LSMPPayerne Air Base227 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 Payerne fogs in

Fog here concentrates in December and November — about 227 hours in a typical year at LSMP, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the LSMP station page.

Fog season

January: ~41 hJanFebruary: ~23 hFebMarch: ~9 hMarApril: ~4 hAprMay: ~4 hMayJune: ~3 hJunJuly: ~1 hJulAugust: ~1 hAugSeptember: ~3 hSepOctober: ~36 hOctNovember: ~44 hNovDecember: ~64 hDec
Fog season runs October through February, peaking in December; 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.