{"icao":"EKCH","name":"Copenhagen Kastrup Airport","lat":55.6179,"lon":12.656,"country":"DK","tz":"Europe/Copenhagen","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":87,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["March","January"],"monthlyHours":[18,15,20,5,3,0,1,1,4,9,6,5],"medianEventHours":2,"season":{"summary":"Fog season runs October through April, peaking in March; fog is mostly a 9 PM\u20139 AM phenomenon; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","April","October","November","December"],"timeOfDay":"9 PM\u20139 AM","typicallyClearsBy":null}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 4 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/ekch/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=EKCH","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/EKCH.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}