According to the 2023 USDA Hardiness Zone Map Kailua, Hawaii is in Zones (), 12b (55°F to 50°F) and 13a (60°F to 55°F). This is a change from the 2012 USDA Hardiness Zone Map which has Kailua in Zones 12b (55°F to 50°F) and 13a (60°F to 55°F).