Beijing is located on the northern edge of the North China Plain, by the mountains and the sea, for the typical warm temperate semi-humid continental monsoon climate, the four seasons are very clear. Spring flowers, autumn moon, summer rain and winter snow each have their own characteristics. The average annual temperature is 11.8℃, the coldest January average temperature is -4.6℃, the hottest is July, the average monthly temperature is 26.1℃. The average annual precipitation is 644 millimeters and the frost-free period is 180 days. Although Beijing has a long winter, the indoor heating equipment is very good and it is as warm as spring. Because of the big temperature difference between indoor and outdoor, you need to bring a sweater or a cotton coat when traveling to Beijing in winter.
Beijing's newspapers, radio and TV stations all have weather forecast programs and commentaries. You can also dial 405, which provides weather forecasts for the day and the following day in both Chinese and English.
However, Beijing's sightseeing programs are mostly about humanistic monuments, famous buildings and folk customs, which are not affected by the climate, so you can visit Beijing all year round. In winter, travel agencies and hotels in Beijing, which offer off-season prices, can save a lot.
Silver Fox Cave, 70 kilometers from Beijing, is a large cave complex, named for the discovery of large white calcite crystals shaped like foxes, which are rare in caves around the world. The best time to visit this place is April-May and September-October every year. Silver Fox Cave is more than 5,000 meters long, of which nearly 3,000 meters have been developed. It is crisscrossed with main caves, branch caves, water caves and dry caves. Silver Fox Cave has two main features: one is the largest cave group in North China, and the cave is full of rare stone chrysanthemums, crystal flowers, stone pearls, stone grapes and other landscapes in caves at home and abroad, as well as dozens of underground wonders. The most amazing is that nearly two meters long, shaped like a cat head fox body of large calcite crystals, covered with white and clear plush needle, like ice and snow jade carving, for the first time in the world cave found, known as the Chinese treasure. Second, in the bottom of the silver fox cave, deep underground one hundred and six meters of the only underground river in North China. The river water is crystal clear, identified by the national level as high-quality natural mineral water, and its water flow through the magnetite beds for natural magnetized water, with obvious anti-inflammatory sterilization to enhance cellular vitality and bioactivity, a variety of diseases have a miraculous medical effect. 2 kilometers from the Silver Fox Cave in the Heilongguan Water Park, beautiful scenery, river pools, sandy beaches, jungles, village houses composed of natural water playground. Visitors can boat, swim and fish here. Catering and snack stores abound here, where you can taste food with mountain and wild characteristics. Accommodation, rest can go to the farmhouse, really appreciate the simplicity of the mountain people and hard work.