The holiday is celebrated all over Thailand, especially in those areas with large populations of Chinese. It’s important to note that, while there may be large celebrations on the day, the Lunar New Year is not an official national holiday. Government offices and services remain open.
Some businesses may close for the day but as with every other holiday in Thailand, most shops will remain open for business as usual.
You can find several areas that will celebrate in Hua Hin. S0, go out and have fun!