Bali's water stays in the high 20s °C all year, so you can leave the wetsuit at home. The two things that end surf trips here are sunburn and infected reef cuts. Pack for those.
TL;DR: Long-sleeve rash guard, mineral sunscreen, reef booties if you plan to surf the Bukit, and a small first-aid kit. Boards and wax are easy to get on the island.



