Thailand has year round tropical climate with an overall average humidity of 66% to 82%.
In Phuket and more in general in the Andaman Sea there are only two seasons, a dry and a summer one, with small temperatures' differences between the two. The NE monsoon season goes from November till the end of April and the SW monsoon season from May till the end of October.
The NE wind is a dry sunny offshore breeze weather while the SW wind is an onshore wind and brings some rains in from the Indian Ocean.
Sunny skies, nice breezes and moderate temperature characterize the cool season and this is the driest time of the year. During this period also the sea conditions are usually excellent.
Phuket is incredibly fortunate, as extreme weather and sea conditions are uncommon. Very few fishing days are lost in fact due to heavy seas or tropical storms.
In the summer season, particularly during September and October it might be raining for some time but prolonged periods of heavy rain only occur occasionally. Yet extended periods of sunshine and blue skies are more than common. As a matter of fact several anglers prefer to show up at this time, as crowds are thinner and the overall climate is pleasant.
However due to a combination of uncertain weather and sea conditions during the summer season we do not operate live-aboard trips to the Similan, Surin or Koh Rok/Koh Ha Islands.
Also the Andaman Island and Burma Banks' tropical climate is influenced by the southwest and northeast monsoons. Because of this reason there is a relatively short window to operate our fishing expeditions in those remote areas; it goes in fact from January/February till the beginning of April each year.
Day trips are available year round and as a matter of fact the SW monsoon season is excellent for Sailfish and Wahoo which can be caught around the Racha Yai and Racha Noi islands nearby Phuket.
Ko Samui weather instead is quite different from the neighboring island resort of Phuket on the Andaman sea. Since Koh Samui is located in the Gulf of Thailand and faces the East, its weather is modulated by the Northeast monsoons which normally is quite mellow. So the Northeast monsoon does not affect Ko Samui until the end of November and last for 3 weeks or so while the island is almost not affected at all by the West monsoons; as a result the best time to visit the island usually goes from late December through October.
On the other hand in Kuala Rompin the Sailfish season runs from April to November with the peak season from July till end of November.
Southwest monsoon in fact does not affect Kuala Rompin's coast much as it is sheltered by the nearby mountains; however, do expect occasional heavy rain and windy conditions.
Kuala Rompin is situated near the equator so temperature might hit high of 35 C during the day and low of 25 C at night. Then again mid November to March is the start of the northeast monsoon which often brings strong rainfall so this season is not recommended for fishing in Kuala Rompin due to strong wind and choppy conditions.
Finally overall sea surface temperatures in the area are generally warm year round, ranging from 79 to 84 F (26 to 29 C).
Phuket International Sportfishing Tournament 23-26 November 2016
Thailand Classic Sportfishing Tournament, 01-03 March 2017
- TIOMAN ISLAND, AUR & DAYANG ISLANDS, WESTERN MALAYSIA, big game fishing for Black Marlin and Sailfish