The whether in this region shows 2 main seasons: dry seasons May/September and wet season December/March plus the transitional (shoulder season) March/April and October/November.
The wind pattern typically will see light and variable wind conditions early and late season, making good conditions for the outer islands and some of the right-handers. With firm and consistent E-SE trades blowing offshore in T-land from June through Aug/Sept, Rote picks up all the S-SW to SW swells tracking across the Indian Ocean towards west Australia. Although there can be swell year round the traditional surf season goes from March to November, but is most consistent from May through September/October.
The shoulder season March/April and October/November is a great time to be in Rote with a great variety of waves and hardly anybody around. Swells may be less consistent, but the fishing rocks.