Is Benxi Shuidong cold in September?

Cold. There is no sunlight in Benxi Shuidong all year round, so the temperature inside the cave itself is lower than the temperature outside the cave. In addition, the average temperature in Benxi in September is around 12°C to 23°C, and the weather has gradually turned colder in September. If the temperature drops directly, the temperature inside the cave will also drop, so Benxi Water Cave is relatively cold in September.