Taking the local weather in Murchison into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually February and January, with an average temperature of 16°C, while the coldest months are July and August, with an average of 10°C. The rainiest months in Murchison are May, September, December and October, with each month seeing an average of 320 mm of rainfall.