That's why I don't go out in a downpour. The coat goes about mid-thigh so my calves get a bit wet. But since my legs are mostly verticle and I'm fat, they don't get very wet at all.
It's warm to around 45-50 degrees Fahrenheit. Really good at blocking wind but it's thin so it doesn't conserve body heat below a pretty cool temperature. It's definitely meant to be worn with base layers if getting close to freezing