Of the new cases, 13 were found from proactive testing and nine in quarantine facilities.
Of the nine overseas travellers, five were Thai nationals – 3 from the UK and one each from Saudi Arabia and Myanmar.
The foreigners included an Iranian, a Nigerian and an Armenian from their home countries, and a British national from Ghana.
Meanwhile, 70 patients have recovered and been discharged.
As of Saturday, the number of confirmed cases in Thailand had risen to 25,881 (20,845 from the second wave). Of these, 23,119 had been contracted locally, including 14,498 who were found via proactive testing, while 2,762 were returnees.
So far, 25,022 have recovered and been discharged, 776 are still being treated and 83 have died.
Meanwhile, according to Worldometer, the number of confirmed cases globally on Saturday morning had risen to 113.98 million (up by 432,632), 89.53 million of whom have recovered, 23.02 million are active cases (91,046 in severe condition) and 2.52 million have died (up by 9,773).
Thailand ranks 114th in the global list of most cases, which is topped by the US with 29.13 million, followed by India with 11.07 million, Brazil 10.45 million, Russia 4.22 million and the United Kingdom 4.16 million.