{"icao":"ESOK","name":"Karlstad Airport","lat":59.4447,"lon":13.3374,"country":"SE","tz":"Europe/Stockholm","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":344,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["January","December"],"monthlyHours":[53,39,39,13,10,6,9,18,41,27,41,52],"medianEventHours":2,"season":{"summary":"Fog season runs August through March, peaking in January; fog is mostly a 9 PM\u20139 AM phenomenon; typically thinning out by noon; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","August","September","October","November","December"],"timeOfDay":"9 PM\u20139 AM","typicallyClearsBy":"noon"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 41 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/esok/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=ESOK","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/ESOK.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}