{"icao":"ESSV","name":"Visby Airport","lat":57.6628,"lon":18.3462,"country":"SE","tz":"Europe/Stockholm","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":127,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["March","September"],"monthlyHours":[9,13,22,10,10,4,7,5,14,10,13,9],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, April, May, July, September, October, November, December, peaking in March; fog is mostly a 10 PM\u20137 AM phenomenon; typically thinning out by 10 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","May","July","September","October","November","December"],"timeOfDay":"10 PM\u20137 AM","typicallyClearsBy":"10 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 14 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/essv/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=ESSV","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/ESSV.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}