Best Time To Visit Ang Thong National Marine Park (Koh Samui) In 2026 - 2027

Best Time to Visit Ang Thong National Marine Park

The optimal time to visit the Ang Thong National Marine Park near Koh Samui, Thailand is during the dry season which spans from February to October. This period offers the most favorable weather conditions for exploring the archipelago's pristine beaches, lush jungle interiors, and vibrant underwater scenery. Tourists can expect minimal rainfall, clear blue skies, and calm seas, which are ideal for activities such as snorkeling, diving, sea kayaking, and hiking. The visibility underwater is typically at its best during these months, allowing for an exceptional view of the coral reefs and marine life that inhabit the waters of the Marine Park.

Although you can visit throughout this favourable period, the peak season is usually between March and August, when the park is most accessible and tour operators run daily excursions to the various islands within the park. Keep in mind that July and August can be particularly busy, as these months coincide with European summer holidays. If you are looking to avoid the crowds and seek a more tranquil visit, consider planning your trip in the shoulder months of February or October. It is important to note that the park may close during the off-season from November to January due to the Northeast monsoon, which can bring rough seas and unsafe conditions for boat travel.