The 2021 season was Sunrisers' second season, in which they competed in the 50 over Rachael Heyhoe Flint Trophy and the new Twenty20 competition, the Charlotte Edwards Cup. The side finished bottom of the Rachael Heyhoe Flint Trophy group stage, losing all seven of their matches. The side recorded their first ever win in their opening match of the Charlotte Edwards Cup, beating Western Storm, but did not win any further matches, finishing bottom of Group B.