{"city":"London","region":"GB-ENG","country":"GB","slug":"london","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"EGKK","name":"London Gatwick Airport","subCat1HoursPerYear":74,"forecast":"climatology"},{"icao":"EGLL","name":"London Heathrow Airport","subCat1HoursPerYear":48,"forecast":"climatology"},{"icao":"EGKB","name":"London Biggin Hill Airport","subCat1HoursPerYear":117,"forecast":"climatology"},{"icao":"EGLC","name":"London City Airport","subCat1HoursPerYear":48,"forecast":"climatology"}],"primaryStation":"EGKK","forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. August typically brings about 2 hours of dense fog here (10-year average)."},"climatology":{"subCat1HoursPerYear":74,"fogSeasonPeakMonths":["December","November"],"medianEventHours":2,"season":{"summary":"Fog season runs October through March, peaking in December; fog is mostly a 1 AM\u20138 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","October","November","December"],"timeOfDay":"1 AM\u20138 AM","typicallyClearsBy":"11 AM"}},"links":{"page":"https://fogatlas.org/fog/city/london/","stationPages":["https://fogatlas.org/fog/egkk/","https://fogatlas.org/fog/egll/","https://fogatlas.org/fog/egkb/","https://fogatlas.org/fog/eglc/"],"verification":"https://fogatlas.org/fog/scorecard/"}}