Fog in Portage la Prairie, MB

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. August typically brings about 2 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Portage-la-Prairie / Southport Airport (CYPG). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
CYPGPortage-la-Prairie / Southport Airport38 h/yrverifying

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 Portage la Prairie fogs in

Fog here concentrates in December and January — about 38 hours in a typical year at CYPG, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYPG station page.

Fog season

January: ~4 hJanFebruary: ~2 hFebMarch: ~2 hMarApril: ~1 hAprMay: ~1 hMayJune: ~1 hJunJuly: ~1 hJulAugust: ~2 hAugSeptember: ~2 hSepOctober: ~2 hOctNovember: ~1 hNovDecember: ~5 hDec
Fog season is January, February, March, August, September, October, December, peaking in December; fog is mostly a 6 AM–10 AM phenomenon; typically thinning out by noon; 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.