June in Newcastle upon Tyne is the cloudiest month of the year. In June, the weather in Newcastle upon Tyne is typically warm. Average daily high temperature in June is about 15 degrees above zero. On average, Newcastle upon Tyne has 17 rainy, 8 cloudy, 3 sunny, and 2 partly cloudy days in June. The rains are usually moderate. June as well as January, February, March, and August is considered the most uncomfortable time to visit Newcastle upon Tyne.