Taking into account the local weather in Bandera is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually March and April with an average temp of 82°F, while the coldest months are January and December with an average of 80°F. The rainiest months in Bandera are October, August, July, and November, with each month seeing an average of 39 inches of rainfall.