Weather will likely play an important role when you plan your trip to Nullatanni, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and April with an average temp of 75°F, while the coldest months are January and February with an average of 72°F. The rainiest months in Nullatanni are July, August, June, and October, with each month seeing an average of 22 inches of rainfall.