Weather is probably a major factor when you plan your trip to Coromandel, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually September and October, with an average temperature of 23°C, while the coldest months are July and June, with an average of 20°C. The rainiest months in Coromandel are December, November, January and February, with each month seeing an average of 242 mm of rainfall.