Getting an idea of what to expect from the weather in Ninh Hoa will help you enjoy your stay to the fullest. The hottest months are usually June and May, with an average temperature of 28°C, while the coldest months are January and February, with an average of 24°C. The rainiest months in Ninh Hoa are November, October, December and September, with each month seeing an average of 259 mm of rainfall.