Highlights include December’s Culinary Festival, February's Todos Santos Art Festival, Carnival (Feb-March) and Spring Break (capped the first week in April by the International Bikini Open and Cabo San Lucas Off-Road Race).
Off Season: July to mid-September
Corresponding to Pacific hurricane season, both the heat and the chance of storms increase during these months.
Sweet Spot: May to June; late-September
You'll get the best bang for your buck in June, when fishing tournaments visit, and late September as hurricane season is winding down.