During these months, west and southwest winds blow from the Indian Ocean towards Phuket, constantly bringing plankton and baitfish closer to the island. Predatory fish follow this food source, which is why fishing in Phuket is usually at its best after storms. For example, after the September storms, early October often offers excellent tuna fishing in Phuket.
Cloud cover, rain, wind and ocean currents lower water temperatures. Cooler water retains more oxygen, making fish more active and increasing their appetite.
Ocean currents also bring large amounts of plankton and schools of small baitfish. Plankton enriches the water with oxygen, while baitfish attract larger predators, which are the main target species during sea fishing in Phuket.
In April, many species such as tuna, grouper and king mackerel begin their spawning season. Before spawning, they gather in large schools around underwater structures and feed aggressively. April often produces very large fish on fast jigging techniques, while king mackerel usually responds better to casting techniques with deeper-running lures.