{"icao":"VVNB","name":"Noi Bai International Airport","lat":21.2212,"lon":105.807,"country":"VN","tz":"Asia/Bangkok","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":10,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["February","January"],"monthlyHours":[2,3,2,0,0,0,0,0,0,0,0,1],"medianEventHours":1,"season":{"summary":"Fog season runs January through March, peaking in February; fog is mostly a 3 AM\u201310 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March"],"timeOfDay":"3 AM\u201310 AM","typicallyClearsBy":"11 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in September (10-year average)."},"links":{"page":"https://fogatlas.org/fog/vvnb/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=VVNB","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/VVNB.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}