Phuket Weather Forecast
17th - 23rd August 2026
Forecast data supplied by MET NorwayThai Meteorological Department
Does a rain symbol mean a washout?
NO. A rain icon often represents a short tropical shower rather than a full wet day. Phuket can still have useful bright periods between showers.
Yearly forecast
Monthly rainfall
Average sunshine
Average temperature
Phuket weather month by month
Use these long-term Phuket climate averages as a planning guide, then check the live seven-day forecast when your trip is close. Rainfall and sea conditions can vary across the island, so no monthly average guarantees a particular beach or boat day.
What is Phuket weather like in January?
January is normally bright, warm and comparatively dry. The Phuket climate normals used on this page average 28.3°C, around 9 hours of sunshine a day and about 50 mm of rain. Sea conditions are often calmer, making this one of the most popular months for beaches, snorkelling and island boat trips.
What is Phuket weather like in February?
February is usually Phuket’s driest month, with a mean temperature near 29°C, about 8.7 hours of sunshine a day and roughly 24 mm of rain. Warm, bright days and generally settled Andaman Sea conditions make it an excellent period for beach time, sightseeing and long-distance island trips.
What is Phuket weather like in March?
March remains sunny and increasingly hot. Long-term averages are approximately 29.4°C, 8.9 sunshine hours a day and 81 mm of rain. Boat tours and outdoor plans generally operate normally, although the midday heat is stronger, so shade, drinking water and sun protection matter.
What is Phuket weather like in April?
April is typically Phuket’s hottest month, averaging about 29.6°C with around 8 sunshine hours a day and 135 mm of rain. Many days are still bright and suitable for trips, but humidity rises and short tropical downpours become more common as Phuket moves towards the green season.
What is Phuket weather like in May?
May marks the early green season. The mean temperature stays near 29.1°C, while sunshine averages about 5.1 hours a day and rainfall rises to roughly 237 mm. There can still be good bright periods, but showers become heavier and west-coast seas can be wavier, so keep marine plans flexible.
What is Phuket weather like in June?
June is warm, green and changeable, averaging about 28.7°C, 3.9 sunshine hours a day and 249 mm of rain. Showers do not automatically mean an entire wet day, but the southwest monsoon can bring rougher west-coast seas. Follow beach flags and recheck boat plans close to departure.
What is Phuket weather like in July?
July remains tropical and warm, with a mean near 28.4°C, around 3.9 sunshine hours a day and approximately 240 mm of rain. Visitors often get usable bright spells between showers, while some days are more unsettled. Keep a mix of island, cultural and sheltered activities available.
What is Phuket weather like in August?
August averages around 28.3°C, 3.8 sunshine hours a day and about 309 mm of rain. Phuket stays warm and lush, with tropical showers and brighter intervals. Marine conditions can change quickly, so use the seven-day wave outlook and the operator’s final assessment for island trips.
What is Phuket weather like in September?
September is usually Phuket’s wettest month. Climate normals average approximately 27.8°C, 3.6 sunshine hours a day and 350 mm of rain. Warm days and clear spells still occur, but heavy showers and rougher seas are more likely, making flexible, short-notice planning especially useful.
What is Phuket weather like in October?
October is a transition month, averaging about 27.6°C, 5.8 sunshine hours a day and roughly 336 mm of rain. Conditions can be mixed: some weeks feel distinctly green-season, while brighter periods become more frequent later in the month. Recheck sea conditions before committing to a long crossing.
What is Phuket weather like in November?
November usually brings improving weather as the drier season settles in. The monthly averages are about 28°C, 7.3 sunshine hours a day and 178 mm of rain. Beaches and boat trips become increasingly popular, although the occasional windy or wet day remains possible during the transition.
What is Phuket weather like in December?
December is normally warm, bright and much drier, averaging approximately 27.9°C, 8.4 sunshine hours a day and 82 mm of rain. Sea conditions are generally more comfortable and nearly every type of Phuket trip is popular, so booking earlier is sensible around Christmas and New Year.
Phuket weather FAQ
How accurate is a seven-day Phuket forecast?
It is useful for general planning. Recheck the final 24–48 hours for beach days, boat trips and outdoor activities because tropical conditions can change quickly.
When is the best time for sunny weather in Phuket?
January to April is usually Phuket’s sunniest period, with less rain and generally calmer Andaman Sea conditions. November and December are transition months as the drier season settles in.
Does it rain all day during Phuket’s green season?
Usually not. Tropical rain often arrives in short, heavy showers, frequently later in the day, with useful dry or bright periods between them. Longer wet spells can still happen.
Can I visit Phuket during the green season?
Yes. Phuket remains warm and active throughout the year, with fewer visitors and greener scenery in the wetter months. Keep sea-based plans flexible and check conditions close to the day.
When are Phuket’s seas usually calmest?
January to April often brings the calmest Andaman Sea conditions. November and December generally improve as the southwest monsoon fades, although occasional rough days remain possible.
Is it safe to swim during the green season?
Only when local conditions allow. West-coast waves and rip currents can be dangerous in the southwest monsoon, so never enter the water where a red flag is displayed.
Can different parts of Phuket have different weather?
Yes. Tropical showers can be very local, so one side of Phuket may be wet while another stays bright. Treat the forecast as an island-wide guide rather than a promise for every beach.
How hot is Phuket throughout the year?
Phuket stays warm year-round. Daytime conditions are tropical in every month, with April and May often feeling hottest and the green season remaining warm and humid.
Will a boat trip be cancelled if rain is shown?
Rain alone rarely cancels a trip. Operators pay closer attention to wind, waves and official warnings. If conditions become unsafe, the operator may change, delay or cancel the trip.