There were 80 more Covid-19 fatalities and 8,148 new cases recorded during the previous 24 hours, the Public Health Ministry rported on Friday morning.
On Thursday, 8,238 Covid-19 patients were discharged from hospitals after recovering from the coronavirus.
This compares with 7,982 new Covid cases and 68 deaths on Wednesday, announced on Thursday.
Since April 1, when the third wave of Covid-19 began, Thailand has treated 1,922,709 Covid-19 patients, 1,807,304 of whom have recovered to date.
Since the pandemic started early last year, there have been 1,951,572 Covid-19 cases, with 1,834,730 complete recoveries so far.
The death toll stood at 19,448 during the third wave and 19,542 since the beginning of the pandemic.
The kingdom’s 24-hour high of Covid-19 fatalities was 312 recorded on Aug 18. The highest number of cases was 23,418 on Aug 13.
Dr Sumanee Wacharasint, assistant spokesman for the Centre for Covid-19 Situation Administration (CCSA), expressed concern during the afternoon briefing about the number of fatalities and new infections in the South, which now topped other regions in the country.
Eleven southern provinces accounted for a combined 23 of the latest 80 deaths nationwide - led by six in Nakhon Si Thammarat and three each in Trang and Pattani.
Six provinces in the southern region were among the 10 provinces with the highest infection rate, with Bangkok leading the figures at 721 cases. Songkhla had the most new transmissions in the southern region, 498 cases, followed by Pattani (498), Yala (375) Nakhon Si Thammarat (294), Narathiwat (213) and Trang (205).
There were 15 imported cases from 10 countries, according to the CCSA - from India, Egypt, the United Arab Emirates, Nigeria, Germany, Malaysia, the United Kingdom, Australia, Russia and the United States.
On Thursday, 97,300 people received Covid-19 treatment at hospitals, including 2,118 seriously ill patients and 461 dependent on ventilators.