Weather is probably a major factor when you plan your trip to Weipa, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually November and October with an average temp of 82°F, while the coldest months are August and July with an average of 78°F. The rainiest months in Weipa are January, February, March, and December, with each month seeing an average of 16 inches of rainfall.