Weather is only one factor, but it can really affect your travel plans, especially if you are planning a longer stay in McArthur. The hottest months are usually November and December, with an average temperature of 30°C, while the coldest months are July and August, with an average of 23°C. The rainiest months in McArthur are January, February, December and March, with each month seeing an average of 233 mm of rainfall.