Ko Samet

Ko Samet (เกาะเสม็ด) is a small island in Rayong Province, within easy reach of Bangkok.

(there's also a smaller Ko Samet in Chumphon Province)

 Slogan of kho samet

As based upon the Rayong (province), holds the same slogan –

Best of tropical fruits, industrial estates, finest fish sauce, the charming Ko Samet and the most famous poet “Sunthon Phu”.

Understand with Ko Samet 

Ko Samet is not overly renowned for its parties (unlike Ko Pha Ngan) or its diving (unlike Ko Tao), but it has both convenience and quietness in its favor. It's a popular tourist destination for Thais as well as foreigners for its proximity to Bangkok. 

Climate

Even though Ko Samet is only a few kilometers from the mainland of Rayong, the island with its micro-climate (the driest archipelago in Thailand) gets much less rainfall than the rest of the province. The rainy season is May to September but even then it still has significantly less rain than the other islands in Thailand. Tourists should, however, be careful of occasional storms.