{"icao":"VVCI","name":"Cat Bi International Airport","lat":20.8174,"lon":106.7243,"country":"VN","tz":"Asia/Bangkok","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":4,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["February","March"],"monthlyHours":[0,2,1,0,0,0,0,0,0,0,0,0],"medianEventHours":1,"season":{"summary":"Fog season is February, peaking in February; fog is mostly a 1 AM\u20135 AM phenomenon; typically thinning out by 6 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["February"],"timeOfDay":"1 AM\u20135 AM","typicallyClearsBy":"6 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/vvci/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=VVCI","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/VVCI.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}