Fog in Pohnpei Island

daily fog outlook & 2016–2026 climatology
Forecast feed initializing for this station. dense fog (visibility under a mile) is rare here in August (10-year average).

Measured at Pohnpei International Airport (PTPN). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
PTPNPohnpei International Airport12 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 Pohnpei Island fogs in

Fog here concentrates in November and September — about 12 hours in a typical year at PTPN. Hour-by-hour patterns, live conditions and the forecast strip live on the PTPN station page.

Fog season

January: ~0 hJanFebruary: ~0 hFebMarch: ~0 hMarApril: ~3 hAprMay: ~1 hMayJune: ~0 hJunJuly: ~1 hJulAugust: ~0 hAugSeptember: ~3 hSepOctober: ~0 hOctNovember: ~5 hNovDecember: ~0 hDec
Fog season is April, September, November, peaking in November; fog is mostly a 3 AM–3 AM phenomenon; typically thinning out by 4 AM local time · 10-yr average

Machine access: data.json · llms.txt · forecast verification. Not for operational use.