June in Invercargill is the cloudiest month of the year. In June, the weather in Invercargill is typically warm. Average daily high temperature in June is about 10 degrees above zero. On average, Invercargill has 23 rainy, 4 cloudy, 2 sunny, and 1 partly cloudy day in June. The rains are usually moderate. June as well as January, March, April, and May is considered the most uncomfortable time to visit Invercargill.