Taking into account the local weather in Luiziana is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually December and November with an average temp of 74°F, while the coldest months are July and June with an average of 63°F. The rainiest months in Luiziana are October, December, January, and February, with each month seeing an average of 10 inches of rainfall.