When will ski resorts in Southern Hemisphere open for the ski season? The 2025/26 Ski season in Southern Hemisphere starts from 2025/05/31. See this list of projected opening dates for Southern Hemisphere mountains. Important Note: Not all dates listed here are official and final, as resort opening dates are projected and subject to change. Check back for updates on when the lifts are set to start spinning at Southern Hemisphere, and don't miss opening day at your favorite resort!