Weather and sea in October

  • Rain: very frequent, often in heavy showers; whole days of rain are possible.
  • Temperatures: about 29 to 31 °C, humid air.
  • Sea: still rough on the west coast early in the month, often better at the end. Respect the red flags.
  • Similan park: 2026-2027 season from 15 October 2026 to 15 May 2027 (dates set by the park). The first trips of the season depend on the sea.

To compare, see the best time to visit Phuket and Phuket in November.

The Vegetarian Festival

The nine days of the Vegetarian Festival fall in October (10 to 18 October in 2026; the date follows the Chinese lunar calendar and changes every year). Spirit-medium processions, vegetarian food stalls, firecrackers: everything is in the Phuket Vegetarian Festival page, with the Jui Tui and Bang Neow shrines. Book accommodation in Phuket Town early.

Tours in October

After 15 October the Similan Islands become possible again: see Similan from Phuket. The speedboat Similan trip from Phuket or Khao Lak (about 89 EUR per person, rated 4.5 from more than 1,800 reviews on GetYourGuide in October 2026) needs some luck with the sea early in the season: choose a cancellable offer. For other outings, see Phi Phi from Phuket and Phuket when it rains.

Prices and planning

Hotels are still at low-season rates, rising towards the end of the month. For costs see the budget guide; to choose an area, where to stay in Phuket.

FAQ

Is October a good idea for Phuket?

If you accept rain: low prices, few people and the Vegetarian Festival. Otherwise prefer November.

Are the Similan Islands open in October?

They reopen around 15 October (15 October 2026 for the 2026-2027 season).

When is the Vegetarian Festival?

10 to 18 October in 2026; the date changes every year.

Can I swim in October?

Yes when the flag is not red; the sea is often better at the end of the month.