Where to do the rain dance in haruba desert Pokemon ranger?

You can't actually do a rain dance in the Haruba Desert in Pokémon Ranger. Rain Dance is a move in the main Pokémon games, but it's not a mechanic in Pokémon Ranger.

The Haruba Desert is a dry and arid environment, so there's no opportunity for rain. You'll have to rely on other strategies to overcome the desert's challenges.