It can be done of course, but, at that time you will have the Mozambique Current as well as NE winds on the nose. Could be very uncomfortable for you. You are aware that it will be cyclone "season" in the region so forward planning is important - be sure you know where all the "hidey-holes" are.
The best time for this passage is starting from Durban/Richards Bay in April/May but of course that does not suit you.
Look for information on the
Mozambique section of the
Cruising Wiki and also contact
Cruising Connections in Durban - Tony Herrick is a mine of information about the region.
It is a wonderful passage with lots to see along the way. Good luck, and please post your plans and trip report here.