Weather is probably a major factor when you plan your trip to Port McNeill, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 13°C, while the coldest months are February and December, with an average of 4°C. The rainiest months in Port McNeill are November, January, October and December, with each month seeing an average of 367 mm of rainfall.