Ang Thong National Marine Park
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When to go
Where the weather works in July, and where to skip.
Mostly dry. A good alternative to the Andaman monsoon.
Rainy, lush rice fields, waterfalls start to fill.
Rainy and green. Candle festivals mark the start of Buddhist Lent.
Rainy season.
Monsoon. Rough seas around Ko Chang and Ko Mak.
Monsoon. Rough seas, red-flag beaches.
Many festival dates follow the lunar calendar. Check this year's dates before you book.
It is a mixed month. Gulf coast (Samui, Pha Ngan, Tao, Songkhla) is your best bet: Mostly dry. A good alternative to the Andaman monsoon.
Ubon Candle Festival in Ubon Ratchathani (July, at the start of Buddhist Lent (lunar calendar))
General climate patterns from the Thai Meteorological Department (tmd.go.th). Weather varies year to year; treat this as a guide, not a forecast.