{"icao":"EFIV","name":"Ivalo Airport","lat":68.6073,"lon":27.4053,"country":"FI","tz":"Europe/Helsinki","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":50,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["August","October"],"monthlyHours":[4,3,2,2,3,2,7,8,5,7,6,1],"medianEventHours":1,"season":{"summary":"Fog season runs January through November, peaking in August; fog is mostly a midnight\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","June","July","August","September","October","November"],"timeOfDay":"midnight\u20137 AM","typicallyClearsBy":"10 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 5 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/efiv/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=EFIV","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/EFIV.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}