There are many organized events in Cape Town throughout the year. An official calendar of events is available from Cape Town Tourism. WhatsoninCapeTown.com also has a comprehensive listing.

Cape Minstrel Carnival - same date every year - 2 Jan
J&B Met - the last Saturday of January
Old Mutual Two Oceans Marathon - the Saturday of Easter
Cape Town International Jazz Festival - April
Riebeek Valley Olive Festival - the first weekend in May
Wacky Wine Weekend - the first weekend in June
Isuzu Berg River Canoe Marathon - July
Hermanus Whale Festival - September
Cape Town International Kite Festival - October
Discovery Cape Times Big Walk - November