· What changed
The Similan Islands reopen on 15 October
What it means for you
From 15 October the Similans are open again for day trips from Phuket, until the park closes for the next monsoon in May.
The Similan Islands National Park, the diving and snorkelling islands north-west of Phuket, has been closed since 15 May for the monsoon. It reopens on 15 October 2026, according to the Department of National Parks.
The park closes every year for the southwest monsoon, which usually runs from mid-May to mid-October on this coast.
If the Similans are the reason for your trip, book early in the season, and ask whether the national park fee is included in the price.
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