{"icao":"RJSS","name":"Sendai Airport","lat":38.1397,"lon":140.917,"country":"JP","tz":"Asia/Tokyo","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":28,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["July","May"],"monthlyHours":[1,1,2,6,14,9,19,9,1,0,0,0],"medianEventHours":1,"season":{"summary":"Fog season runs April through August, peaking in July; fog is mostly a 2 AM\u20135 AM phenomenon; typically thinning out by 7 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["April","May","June","July","August"],"timeOfDay":"2 AM\u20135 AM","typicallyClearsBy":"7 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 1 hour of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/rjss/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=RJSS","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/RJSS.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}