Fog in Hamilton

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 67 hours of dense fog here (10-year average).

Measured at Hamilton International Airport (NZHN). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
NZHNHamilton International Airport417 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 Hamilton fogs in

Fog here concentrates in July and June — about 417 hours in a typical year at NZHN, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the NZHN station page.

Fog season

January: ~4 hJanFebruary: ~10 hFebMarch: ~34 hMarApril: ~49 hAprMay: ~63 hMayJune: ~68 hJunJuly: ~79 hJulAugust: ~67 hAugSeptember: ~0 hSepOctober: ~2 hOctNovember: ~7 hNovDecember: ~12 hDec
Fog season runs March through August, peaking in July; fog is mostly a 10 PM–8 AM phenomenon; typically thinning out by 10 AM; 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.