All Thailand government offices, including Thai Immigration, are CLOSED on
...Monday 27th July (Substitution day for Songkran)
...Tuesday 28th July (King Rama X’s birthday).
The next public holidays are:
🇹🇭 Wednesday 12th August
🇹🇭 Tuesday 13th October
🇹🇭 Friday 23rd October
TLDR : Answer Summary
All Thailand government offices, including Thai Immigration, will be closed on Monday 27th July for Songkran substitution day and Tuesday 28th July for King Rama X’s birthday. Upcoming public holidays include Wednesday 12th August, Tuesday 13th October, and Friday 23rd October.