First passage !
In the bar of Crater bay marina on Nosy be Madagascar I meet world-sailor Stephan. He tells me: your boat cannot not stay here. Every year from December to May cyclones develop below the equator and often hit Madagascar. Some pass west of Madagascar through the Mozambique channel and may hit Nosy Be. So do not leave your boat there.
Tanga in Tanzania is a safe place to leave your boat and it is out of the cyclone belt.