In June, the weather in Betws-Y-Coed is typically warm. Average daily high temperature in June is about 15 degrees above zero. On average, Betws-Y-Coed has 24 rainy, 5 sunny, and 1 cloudy day in June. The rains are usually heavy. June as well as January, February, March, and April is considered the most uncomfortable time to visit Betws-Y-Coed.