The Low Season is when the winds change and blow eastward into White Beach. There is more rain than usual, but there are also fewer tourists, better prices on accommodations, and other lower prices. The low season begins in May, and ends in October. With the increase in Asian tourists, the low season is still very busy in Boracay.
During High Season, the winds come from the back of the island, and White Beach is protected. The wind blows out to sea, leaving the beach pristinely clean and generally calm. It is also winter in the northern hemisphere, and tourists come in numbers in search of sun, heat, beach and party. High Season starts in October and ends in May.
The Peak Season is when the tourists are at their height. This includes Christmas, New Year, Chinese New Year, and Holy Week (Easter Week). Most resorts have a +10% to +25% premium on their rooms, and the island gets fully booked. Make sure you book as far in advance as possible.