Heavy rain in Tongatapu with sharp drop in temperature Low lying areas in Nuku’alofa experienced flooding this morning as one third of this month’s average rainfall was dumped in less than 24 hours, and brought a dramatic drop in temperature. Please subscribe to access premium content. Tags: rainfallfloodingdroughtTonga Meteorological Services Read more about Heavy rain in Tongatapu with sharp drop in temperatureLog in or register to post comments