October 12th to 14th. Four Peaks Oktoberfest at Tempe Town Lake is one of Tempe’s signature annual events. Benefiting Tempe Sister Cities, the Tempe Oktoberfest combines beer gardens, live music, a polka stage, great food including German fare, a carnival, kids activities and much more fun.  Throwing the largest Oktoberfest in the State of Arizona, Tempe Beach Park will transform into a traditional Bavarian Beer festival during the day and a concert venue at night! Oktoberfest is always a great time for the whole family including the kids.