Phang Nga in Septemberhow the month reads

• Closed
  Similan and Surin Islands

  the national park shuts for about five months each year so the reefs can recover, and because the southwest monsoon makes the crossing unsafe. Recent closures have run mid-May to mid-October

  Sources: nationthailand.com, thainationalparks.com

Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.

• Temperature
  29°C
  −1.3°C vs. yearly mean
• Month rank
  11 of 12
  for Phang Nga
• Best months
  January · February · March
  highest regional score

Parts of Thailand carry a higher advisory — up to level 4, "Do not travel". The governments concerned name a region rather than a boundary, so the carve-out is not drawn on the map and is not reflected in the combined level above. Follow the source links for where it applies.