{"city":"Calais","region":"FR-HDF","country":"FR","slug":"calais","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"LFAC","name":"Calais Marck Airport","subCat1HoursPerYear":85,"forecast":"climatology"}],"primaryStation":"LFAC","forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. August typically brings about 1 hour of dense fog here (10-year average)."},"climatology":{"subCat1HoursPerYear":85,"fogSeasonPeakMonths":["March","January"],"medianEventHours":2,"season":{"summary":"Fog season is January, March, December, peaking in March; fog is mostly a 4 AM\u20138 AM phenomenon; typically thinning out by noon; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","March","December"],"timeOfDay":"4 AM\u20138 AM","typicallyClearsBy":"noon"}},"links":{"page":"https://fogatlas.org/fog/city/calais/","stationPages":["https://fogatlas.org/fog/lfac/"],"verification":"https://fogatlas.org/fog/scorecard/"}}