Weather will likely play an important role when you plan your trip to Havelock, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August, with an average temperature of 25°C, while the coldest months are January and February, with an average of 10°C. The rainiest months in Havelock are August, July, September and June, with each month seeing an average of 212 mm of rainfall.