Unfortunately visitors are sometimes incorrectly informed about Koh Samui's seasons prior to their departure. Not everyone is aware for example, that we do not have the same rainy season as does Phuket.

Generally speaking, between the months of January and September, most days will be filled with sun, except for the occasional downpour, which usually doesn't last long. The frequent showers (not monsoons) come in October, and last until sometime in December. Water sports enthusiasts should note that the sea can get rough at this time, and visibility can be affected.