If Singaporean nationals don't need a visa to Thailand, you can go to Thailand with your present passport. The passport with at least 6 months left validity is only required for visa application.

hi Miles thanks for the reply. Im holding Philippine passport and I think we also dont need a visa to Thailand. Im just wondering will there be any problem if I can still go to Thailand on Mrch20 and my passport exp is on aug22.

Ms.yesha, my previous reply means that you don't need to worry about the validity of your passport and you can use your passport to travel to Phuket (Thailand) if you are exempt from a visa to Thailand. If you have to apply for visa on arrival in Thailand, a passport with at least 6 months validity is also required. Now, your passport has only 5 months remaining validity when you go to Thailand on March 20.