Taking into account the local weather in Taumarunui is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually January and February with an average temp of 45°F, while the coldest months are July and August with an average of 31°F. The rainiest months in Taumarunui are September, October, July, and May, with each month seeing an average of 8 inches of rainfall.