{"city":"Hanoi (Soc Son)","region":"VN-RRD","country":"VN","slug":"hanoi-soc-son","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"VVNB","name":"Noi Bai International Airport","subCat1HoursPerYear":10,"forecast":"climatology"}],"primaryStation":"VVNB","forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in August (10-year average)."},"climatology":{"subCat1HoursPerYear":10,"fogSeasonPeakMonths":["February","January"],"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"}},"links":{"page":"https://fogatlas.org/fog/city/hanoi-soc-son/","stationPages":["https://fogatlas.org/fog/vvnb/"],"verification":"https://fogatlas.org/fog/scorecard/"}}