Phuket Weather in September
In September, Phuket averages a high of 32°C (89°F) and a low of 25°C (76°F), from 46 years of daily records (1972–2026).
32°C
Average high
89°F
25°C
Average low
76°F
36°C
Record high
96°F · September 3, 2017
22°C
Record low
71°F · September 7, 1972
What September Is Like in Phuket
- 7 of the 10 warmest Septembers on record in Phuket have come since 2011.
- The coldest September reading, 22°C (71°F) on September 7, 1972, has not been matched in 54 years.
- A typical September brings 26 days above 30°C (86°F).
- September in Phuket has become 1.2°C (2.2°F) warmer on average: the 2011–2025 average against 1970–1989.
At least 1 mm of rain falls on 72% of September days, and the month averages 390 mm in total.
Warmest: 2019 (32.8°C)Latest: 2025 (31.7°C)10-year averageLong-run average (31.6°C)
Look Up a Day in September
See the weather in Phuket on any September date, year by year.
Source: NOAA GHCN-Daily, Phuket (1971–2026). Averages cover 1972–2026. How we compute this