Anchorages in Koh Samui & the Gulf of Thailand
From Koh Samui's Fisherman's Village anchorage north to Koh Phangan's Full Moon Bay, and on to Koh Tao's world-class dive sites and the open-ocean pinnacle of Sail Rock. The Gulf of Thailand has the opposite season to the Andaman Sea.
Gulf of Thailand Season — Opposite to the Andaman Sea
The Gulf of Thailand's best sailing season is May–October (SW monsoon) — opposite to the Andaman Sea which is best November–April. During the NE monsoon (November–February), the Gulf can experience rough NE seas and strong squalls around Koh Samui and Koh Phangan. January and February can be particularly unsettled. Tidal range in the Gulf is 0.5–1.5m — lower than the Andaman Sea. March–April is the transitional period and generally calm on both coasts. Koh Tao diving is excellent year-round due to its protected eastern-coast bays.
Verified Anchorages — Koh Samui & Gulf of Thailand
8 anchorages
Bophut (Koh Samui)
Bo Phut · Bophut Beach · Fisherman's Village Samui
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Big Buddha Bay
Bang Rak Bay · Wat Phra Yai anchorage
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Chaweng
Chaweng Beach · Ao Chaweng
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Koh Phangan (Thong Sala)
Thong Sala Bay · Ko Pha-ngan main port
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Haad Rin
Hat Rin · Full Moon Bay · Sunrise Beach
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Koh Tao
Ko Tao · Turtle Island · Mae Hat Bay
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Koh Nang Yuan
Ko Nang Yuan · Nang Yuan Island
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Hin Bai (Sail Rock area)
Sail Rock · Hin Bai · Koh Sail
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Set Your Anchor Alarm Before You Sleep
In the Gulf of Thailand, unexpected NE squalls can develop overnight. Safety Anchor Alarm monitors your GPS position continuously — so you can enjoy the Full Moon Party, the dive sites, and the tropical sunsets knowing your boat is protected.
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