{"icao":"RKJK","name":"Gunsan Airport / Gunsan Air Base","lat":35.9038,"lon":126.616,"country":"KR","tz":"Asia/Seoul","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":81,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["March","November"],"monthlyHours":[5,8,25,5,3,3,2,2,5,7,11,6],"medianEventHours":1,"season":{"summary":"Fog season is February, March, October, November, peaking in March; fog is mostly a 2 AM\u20138 AM phenomenon; typically thinning out by 10 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["February","March","October","November"],"timeOfDay":"2 AM\u20138 AM","typicallyClearsBy":"10 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 5 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/rkjk/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=RKJK","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/RKJK.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}