Phuket_Weather

Phuket has a moist, tropical climate, influenced chiefly by monsoon winds that vary in direction according to the
season. From March to September, as the sun's rays strike directly above the equator, the land mass of Asia is
heated more than is the Indian Ocean. This draws moist hot air from the ocean over Phuket and southern
Thailand, bringing the rains of the southwest monsoon. By mid-April the winds are mainly from the southwest
and are heavy with moisture.

Northeast Monsoon

Southwest Monsoon

During the month of May, it will rain an average of 25 days making it one of the wettest months of the year.
When the tilt of the earth brings the direct sun rays south of the equator, the heating of the Indian Ocean draws
the cooler dry air of the northeast monsoon from the highlands of Asia across the countries of South and
Southeast Asia. By October the direction of the wind will have shifted to the northeast and Phuket will
experience another intense but briefer wet period as the northeast monsoon sweeps down the east coast of
Thailand and moves back into the Indian Ocean. By mid November the weather on Phuket will be somewhat
cooler and dryer, until March when the weather becomes perceptively warmer and more humid preceding the
onset of the next monsoon. Visiting Phuket during the monsoon season is not unpleasant because most days
are rain-free except for showers in the afternoon. Phuket averages 2540 mm (or about 100 inches) of rain each
year.

Phuket's annual rainfall

400mm

350mm

300mm

250mm

200mm

150mm

100mm

50mm

May June July Aug Sep Oct Nov Dec Jan Feb Mar Apr

What's the Phuket weather like during the rainy season?

This is the question everyone asks! So to give you a clearer picture, here are a few facts.
Phuket has a tropical climate that is warm the whole year round averaging temperatures of around 29C (88F).
There are two distinct seasons with a few minor variations in-between.
Many people visit in the high season (November to March) because of pleasant temperatures, blue skies and
low rainfall. As a result the island is quite busy and everything is a little more expensive. Hotels and tours can be
quite crowded and the island is not quite so laid back.
During April till mid-May, it begins to heat up to around 34C (96F) and there are often heavy thunder-showers in
the late afternoons. The Thai New Year (Songkran Festival) occurs on April 13th and everyone sprinkles (or
throws) cool water on each other. Welcome relief!
This quickly gives way to cooler temperatures and rain showers from late May until November (the monsoon
season).
Visiting Phuket in the monsoon season has lots of advantages. Temperatures average a comfortable 29/30C
(88-90F) and light warm winds make sightseeing tours very pleasant. During the monsoon season, it doesn't rain
every day! The usual weather pattern is for short dramatic showers, with plenty of sunshine in between. June,
July and August are particularly pleasant.
Activities and trips (apart from Similan diving trips) remain totally unaffected. You can still go swimming or
kayaking, (falling off a canoe in warm water will not leave you shivering!) The island is less busy and more
relaxed - it's also less expensive.
One point to watch, however, Is that swimming off the West coast beaches can be dangerous due to strong
currents and rip-tides. Always observe the warning flags on the beach.
Don't be put off by the long-range weather forecasts. Phuket weather is very localised because of the
surrounding hills. There could be a shower on Patong Beach, and bright sunshine in Kata a few kilometers south!
Finally, remember that this is after all a tropical climate, so its never cold and the sun is never far away....