{"city":"Oulu / Oulunsalo","region":"FI-14","country":"FI","slug":"oulu-oulunsalo","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"EFOU","name":"Oulu Airport","subCat1HoursPerYear":97,"forecast":"climatology"}],"primaryStation":"EFOU","forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. August typically brings about 3 hours of dense fog here (10-year average)."},"climatology":{"subCat1HoursPerYear":97,"fogSeasonPeakMonths":["November","October"],"medianEventHours":1,"season":{"summary":"Fog season runs September through March, peaking in November; 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","September","October","November","December"],"timeOfDay":"any hour of the day","typicallyClearsBy":null}},"links":{"page":"https://fogatlas.org/fog/city/oulu-oulunsalo/","stationPages":["https://fogatlas.org/fog/efou/"],"verification":"https://fogatlas.org/fog/scorecard/"}}