According to the 2023 USDA Hardiness Zone Map Waikapu, Hawaii is in Zones 11a (40°F to 35°F), 11b (45°F to 40°F), 12a (50°F to 45°F) and 12b (55°F to 50°F). There is no change from the 2012 USDA Hardiness Zone Map which has Waikapu in also in Zones 11a (40°F to 35°F), 11b (45°F to 40°F), 12a (50°F to 45°F) and 12b (55°F to 50°F).