August in Alpine is the rainiest and the cloudiest month of the year. In August, the weather in Alpine is typically hot. Average daily high temperature in August is about 30 degrees above zero. On average, Alpine has 15 sunny, 10 rainy, 5 partly cloudy, and 1 cloudy day in August. The rains are usually moderate. August as well as June and July is considered the most uncomfortable time to visit Alpine.