Weihai lies in the transition zone between a Humid subtropical and humid continental climate (Köppen Cwa/Dwa), but as it is at the eastern end of the Shandong Peninsula, its climate is strongly influenced by the surrounding Yellow Sea.
Summers are hot and humid, and August averages 24.7 °C (76.5 °F); the annual mean is 12.48 °C (54.5 °F). More than two-thirds of the annual precipitation occurs from June to September, and there are nearly 2,540 hours of sunshine per year.
Springtime warming and autumn cooling are delayed by one month, winds are generally high, and the average diurnal temperature variation throughout the year is small—at only 6.73 °C (12.1 °F).
Winters are cold and dry, but still warmer than inland places located at the same latitude; the average temperature in January is −0.9 °C (30.4 °F).
Weihai Airport serves the city with regular service to Beijing, Shanghai, Guangzhou, Harbin domestically and the Korean cities of Seoul and Pusan, as the fourth busiest airport in Shandong following Qingdao, Jinan and Yantai.
Qingdao-Rongcheng Intercity Railway offers the high-speed rail services directly to Shanghai Hongqiao, Beijing South, Jinan, Jimo North (Qingdao North soon) and Yantai, with four rail stations, Weihai, Weihai North, Wendeng East and Rongcheng.
Weihai international seawater beach is located in Weihai Torch High Technology Industry Development Zone. It’s a natural seawater beach. And 4 seasons are clear every year. It’s warm in winter and cool in summer. There are some entertainments, such as amusement park, water world, and boats, cruise ships, boats in the beach. May 1st to Oct.1st every year is the best time to visit Weihai international seawater beach.