{"city":"Chiang Rai","region":"TH-57","country":"TH","slug":"chiang-rai","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"VTCT","name":"Mae Fah Luang - Chiang Rai International Airport","subCat1HoursPerYear":28,"forecast":"climatology"}],"primaryStation":"VTCT","forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in August (10-year average)."},"climatology":{"subCat1HoursPerYear":28,"fogSeasonPeakMonths":["December","January"],"medianEventHours":1,"season":{"summary":"Fog season runs November through January, peaking in December; fog is mostly a 6 AM\u20138 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","November","December"],"timeOfDay":"6 AM\u20138 AM","typicallyClearsBy":"9 AM"}},"links":{"page":"https://fogatlas.org/fog/city/chiang-rai/","stationPages":["https://fogatlas.org/fog/vtct/"],"verification":"https://fogatlas.org/fog/scorecard/"}}