Surin Beach, Phuket Surin Beach, Phuket – Image courtesy of Tourism Authority of Thailand

Phuket Weather – May

May falls during the wet season, which is generally hot, wet and humid.

You can expect sunny days interspersed with heavy downpours that fall mainly in the afternoon. Daytime temperatures average 29°C (84°F), but can climb to a very hot 32°C (89°F).

Weather conditions in May are good for sunbathing and surfing, but the seawater becomes cloudy and is not so good for snorkelling, scuba diving or kayaking.

Additionally, heavy rain showers can cause slippery conditions so jungle trekking should be approached with some caution.


Phuket – May Weather Averages

Ave Temp (°C) Temperature icon  29°C (84°F)
Ave High Temp (°C) Temperature icon  32°C (89°F)
Ave Low Temp (°C) temperature icon  25°C (77°F)
Sunshine (Hrs daily) sun icon  8 hours per day
Daylight (Hrs daily) 12  12 hours per day
Comfort Level High heat icon  Very high heat & 85% humidity
UV Index 11  Extreme
Days with some Rain umbrella icon  18 days
Ave Rainfall (mm) rain cloud  200mm
Sea Temp (°C) swimming icon  30°C (86°F)
Phuket, Thailand

Best time to visit Phuket

The best time to visit Phuket is during the dry season from November to April when the skies over Phuket are clear and sunny averaging 28°C (82°F).

Phuket enjoys a tropical monsoon climate with warm temperatures year round spread across three distinct seasons: cool (November to February), hot (March to May) and wet (May to October). The average annual temperature is 27°C (80.6°F).

Phuket Weather Overview


Phuket – Monthly Review

January February March April
May June July August
September October November December

Note: Meteorological data is sourced from the United States National Oceanic and Atmospheric Administration (NOAA) and the World Meteorological Organization (WMO), with additional historical climate data sourced from the Thai Meteorological Department.


Latest update: Phuket Weather in May: 8 June, 2020


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