The southern side of Kaua'i is warm, dry, and generally arid averaging about 35-40 inches of rain a year. The average temperature is 78F, but don't be surprised if temps get into the high 80's or even 90's in this region. Though far from the popular North Shore and scarcely populated, the South side has a lot to offer. The biggest attractions here are the perfect beaches around the Poipu area and Spouting Horn.
The Poipu area stretches around Makahuena Point and is a popular tourist destination, filled with hotels, condos, resorts, shopping, and vacation rentals.
Other towns you'll find on the south side include Kalaheo, Koloa, Lawai, and Omao.