Will the Badaling Great Wall open in rainy days?

I just went to Badaling Great Wall last month, just in time for the rain. It will open in rainy days, but it is not convenient to climb the Great Wall with an umbrella. It's expensive to buy a raincoat at the foot of the Great Wall, so you'd better prepare it yourself in advance. By bus, never sign up for a one-day tour. It's all a lie. Bus no.877 is just around the corner, with card 4. Eight dollars is very convenient.