
Eastern Gulf · Thailand
Koh Samet
Photo: Headshop5 · CC0 · Wikimedia Commons
Climate score in September
Island near Bangkok, white-sand beaches and dry weather even during the southern monsoon.
Highlights
Rain and sun over the year
rainy days / month · filled bar = shown monthBest months
January, February, December
Avoid
September, October
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Koh Samet is the small island closest to Bangkok, about three hours by road plus a short boat crossing, making it a classic weekend escape for the capital's residents. Its fine white sand, said to be among the finest on the east coast, remains its main draw.
White sand beaches
Hat Sai Kaew ("Diamond Sand Beach") is the busiest and liveliest, while coves further south on the island offer a quieter mood.
Weekends and beach parties
Close to Bangkok and popular with locals as much as foreign visitors, the island regularly hosts beach bonfire parties, especially on weekends and public holidays.
Koh Samet is reached from Ban Phe, itself about 3 hours by road from Bangkok, then a short boat ride; its climate stays dry longer than the rest of the east Gulf, even during the southwest monsoon.
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Frequently asked questions
What is the best time to visit Koh Samet?
The best months are January, February, December.
When should you avoid Koh Samet?
Avoid the wettest months: September, October.