{"icao":"ESSP","name":"Norrk\u00f6ping Airport","lat":58.5863,"lon":16.2506,"country":"SE","tz":"Europe/Stockholm","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":208,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["September","October"],"monthlyHours":[20,13,20,8,7,9,13,21,34,25,23,17],"medianEventHours":2,"season":{"summary":"Fog season runs June through March, peaking in September; fog is mostly a midnight\u20136 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","June","July","August","September","October","November","December"],"timeOfDay":"midnight\u20136 AM","typicallyClearsBy":"9 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 34 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/essp/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=ESSP","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/ESSP.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}