{"city":"St Athan, Vale of Glamorgan","region":"GB-WLS","country":"GB","slug":"st-athan-vale-of-glamorgan","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"EGSY","name":"MOD St Athan","subCat1HoursPerYear":93,"forecast":"climatology"}],"primaryStation":"EGSY","forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in August (10-year average)."},"climatology":{"subCat1HoursPerYear":93,"fogSeasonPeakMonths":["January","December"],"medianEventHours":1,"season":{"summary":"Fog season runs September through May, peaking in January; fog here can hit at any hour of the day; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","May","September","October","November","December"],"timeOfDay":"any hour of the day","typicallyClearsBy":null}},"links":{"page":"https://fogatlas.org/fog/city/st-athan-vale-of-glamorgan/","stationPages":["https://fogatlas.org/fog/egsy/"],"verification":"https://fogatlas.org/fog/scorecard/"}}