Taking into account the local weather in Birri 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 69°F, while the coldest months are January and February with an average of 68°F. The rainiest months in Birri are October, June, September, and August, with each month seeing an average of 22 inches of rainfall.