April is the hottest month in Similan Islands with an average temperature of 29°C (83°F) and the coldest is October at 28°C (81°F) with the most daily sunshine hours at 9 in April. The wettest month is September with an average of 253mm of rain. The best month to swim in the sea is in April when the average sea temperature is 29°C (84°F).
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Sunrise 06:30
Sunset 18:08
Sunrise 06:30
Sunset 18:08