There are only two seasons in a year -- the rainy season from May to October and the hot season from November to April. September and October are the wettest months. The best period is from November through February. But whatever the season, there is always a breeze blowing. The average temperatures range between 23°C and 33°C.
Phuket Island was assumed by geologists to be once part of the mainland in the form of a cape sticking out into the Andaman Sea but millions of years later the cape was gradually eroded by natural forces and finally detached from the main land. The cape was mentioned in a book written around the year 157 by Claudius Ptolemy, a famous Greek philosopher, that to travel to Malay Peninsula by ship, the travellers had to pass a cape known among them as Junk Ceylon. It was located between latitudes 6 N and 8 N which is the present site of Phuket Island. Junk Ceylon was at that time visited by merchants of several nations including India, Persia, and Arabia because the island offered a bay that protected its harbour from the wind and monsoon, making it a good stopover. Moreover, it had plenty of tin ore deposits that fetched high prices at that time because the mineral was much wanted by some foreign countries. Though the tin mining industry has played a specially important role in the economic development of the island province, it has declined especially after 1985 when the price of tin fell by half. The decline has also been due to the gradual decrease in the deposits after centuries of exploitation. So, Phuket had to look for a new industry on which to base its future economic development. Fortunately, its natural beauty was soon discovered and there was a boom of tourism in 1980's, which has lasted up to the 21st century.