The spring and fall (autumn) seasons aren't yet overly hot, but the north-central highlands around Amman, the deserts, and Petra tend to be the most comfortable.
Wildlife
Petra
Jordan has a decent variety of animals, particularly considering the large desert covering much of the country's south and east. In this small country one can find numerous mammals, including horses, jackals, foxes, wolves, camels, rabbits, and many rodents. The sea life inland is very limited, especially considering the high salinity of the Dead Sea and hence the lack of life in it. However, in the Red Sea the sea life is very diverse. Part of this diversity is thanks to the coral reefs, which help attract starfish, crabs, shrimp, and hundreds of fish including sharks, eels, and pipe fish.
The bird life is also quite large given the fact that Jordan lies on the eastern side of the north-south migratory path. These resident and migratory birds include pelicans, spoonbills, egrets, terns, and gulls among others. There are also a fair number of reptiles in the country, particularly in the desert, however there are few amphibians.