– Why does playground equipment get wet sometimes in the mornings when it hasn’t rained?

Question

Simple question but was having trouble finding the information + sources googling in Australia.

But when visiting local playgrounds sometimes the equipment is wet in the morning even when it hasn’t rained or when the playground has a shade sail over it. Why is that?

Thanks

In: Earth Science

Answer 1

It’s condensation. The equipment cools over night, and usually the coldest part of day is just before sunrise. As the air temperature rises and the playground equipment lags behind to warm up the moisture in the air accumulates on its surface.