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The South-West Pacific region encompasses the Australian and South Pacific tropical cyclone areas (covering the southern hemisphere from 90°E eastward to 120°W, up to the equator) as well as part of the western and central North Pacific areas. The tropical cyclone season in the southern hemisphere basins typically runs from November to April, while in the western North Pacific tropical cyclone activity peaks between June and November, although cyclones can occur at any time of year.