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Phi Phi in September

September is usually the wettest month of the year on Phi Phi. It is the quietest time on the island and the cheapest, but only for flexible travellers.

2 min read Fact-checked

Avg. high32 °C
Avg. low25 °C
Rainfall350 mm
Rainy days19
Sea temp.28.9 °C
Phi Phi weather by monthRainfall Avg. high
33°50Jan 34°24Feb 34°81Mar 34°135Apr 33°237May 33°249Jun 32°240Jul 32°309Aug 32°350Sep 32°336Oct 32°178Nov 32°82Dec

Average daily high and monthly rainfall. Source: WMO climate normals 1991-2020 for Phuket, the nearest long-term weather station (about 45 km away). Sea temperature is a rounded long-term average. Click a month for details.

What the weather is like

Rainfall averages around 350 mm over about 19 days. Some days are wet from morning to night; others clear up after a storm. Highs are about 32 °C. Rough seas often affect speedboats, and day trips may be cancelled.

Crowds and prices

The island is at its quietest. Expect the lowest room rates of the year and some closed restaurants and shops. Maya Bay remains closed until 30 September.

Tips for September

  • Have a flexible plan and travel insurance that covers delays.
  • Stay near Tonsai, where restaurants stay open and boats leave from.
  • Check the weather forecast before any boat trip.