The planets will be just 10° over the horizon, so better make sure to have a look from the top of a hill. You can estimate an angle of 10° with the width of your fist while you arm is stretched out [1].

The planets will be visible in the south-west. You can look up a simulation of the scene in advance using Stellarium, a free astronomy simulation software [0]. Keep in mind that it does not show the local surroundings.

[0] https://en.wikipedia.org/wiki/Stellarium_(software)

[1] (german) https://de.wikipedia.org/wiki/Winkelsch%C3%A4tzung