Phuket Weather

From crystal-clear high season to tropical monsoon surges. Master the Phuket climate for the ultimate 2026 island getaway.

Sun Exposure Risk

11+

EXTREME UV INDEX

Burn time in Phuket is less than 15 minutes between 11 AM - 3 PM. Reflection off white sand doubles your dose.

Ocean Conditions

Andaman Sea Update

29°C

Avg. Sea Temp

Monsoon Safety

Watch for Red Flags

Wind Gusts

12-18 Knots (Avg)

Monthly
Ocean Forecast

Unlike Bangkok’s dry city heat, Phuket’s weather is dictated by the Andaman Sea. Even in the rain, the sea stays warm, but safety protocols change completely.

Traveler's Tip:

Avoid "August Peak Swell" if you aren't an experienced surfer. Many island hopping tours (Similan/Surin) close entirely between May and October.

View Marine Packing List →
Month Sea Temp Sunshine Swell Risk
Jan - Feb 28°C 9 Hrs/Day Low / Flat
April 30°C 8 Hrs/Day Medium
Sep - Oct 29°C 5 Hrs/Day High (Red Flag)

The Phuket "Monsoon Cycle"

High Season (Nov - Mar)

The Northeast Monsoon brings dry, cool air. The sea on the West Coast (Patong, Kata, Kamala) is calm as a lake, perfect for snorkeling and family swimming.

Wet Season (May - Oct)

The Southwest Monsoon strikes the coast directly. Expect high waves and dangerous rip currents. Swimming is often forbidden by local lifeguards.

Preparation for Phuket 2026

Don't let your vacation get stuck at the border. Humidity levels at airport arrival halls can be intense during the tropical summer. Secure your Thailand Digital Arrival Card (TDAC) online to skip the lines and get to your resort faster.

Full Phuket Guide 2026 Apply for TDAC

Frequently Asked

What is the hottest month in Phuket?

April is the peak of the heat season in Phuket, with temperatures often hitting 34°C - 35°C. Combined with 80% humidity, the heat index can reach 42°C+.

Is it safe to swim in Phuket during the rainy season?

It depends on the beach and the daily flag status. If you see **Red Flags**, do not enter the water—rip currents are extremely powerful and dangerous on the west coast during the monsoon.