Phuket weather by month
Phuket is warmest in March (32°C average high) and coolest in September (29°C). For warm, mostly dry weather, go January to March. The sea is warm enough for easy swimming all year.
Warmest month
March
32°C
Coolest month
September
29°C
Wettest month
October
28 rainy days
Flight from London
12h
direct, estimated
Phuket temperature by month
Tap a month for the detail and warmer alternatives.
When to go to Phuket
What is the best month to visit Phuket for sun?
For warm, mostly dry days, go January to March, going by our 10-year averages.
What is the hottest month in Phuket?
March averages 32°C. September is the coolest at 29°C.
When does it rain most in Phuket?
October, with about 28 wet days.
When is the sea warm enough to swim in Phuket?
all year, when the sea averages 21°C or more.
How we measured this
Daily averages from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis); sea temperatures are 2023 to 2025 averages from the Open-Meteo marine archive. A rainy day has at least 1 mm of rain.
Going to Phuket?
Save the places you find on TikTok and Instagram for Phuket to one map, and Dream Trip will plan the days around them.
