Are there vaccination requirements for traveling from Bangkok to Chiang Mai as an unvaccinated traveler?

I also have recently been asked for vaccine certificate to get on buses, minivans, into blue tree waterpark and even some national parks.

I have been asked for the vaccine certificate at high end and mid range resorts aswell as some high end restaurants.

I was asked for vacvine certificate to get to phi phi, maya bay and island hoping tour in krabi.

My point is do not be surprised if your limited to what u can do being unvaccinated here in Thailand.

Yes things are changing now.....but slowly.

Maybe it’s not as simple as some other commenters say. I flew to Loei province recently and I was asked for my vaccination certificate on check-in at the airport. Luckily I had it with me in, but I have no idea what would have happened if i could not show them - denied boarding - who knows? Upon arrival in Loei, local provincial staff were again checking vaccination credentials at the airport, however I get the impression that I could have put anything in front of them that looked vaguely official and they would have just smiled and let me in (I have a foreign vaccination certificate).

During the checkin I was quite forthright with my comments about not having been alerted in advance about this requirement and I have since checked the Air Asia website and nothing is mentioned . Oh well, TIT 🤷‍♀️

I am not vaccinated and flew from Pattaya to Phuket on Tuesday. You only need a passport for domestic flight. Negative PCR result and/or vaccination certificate is not needed

Currently there are no restrictions for domestic travel. Vaxxed or not.