Wondering what is the best time of year to visit Jordan and Israel?
The best months are from April to July and from September to November
Since these are warm countries you do not want to come in July and Aug. and even June could be warm the best would be April,May,Sept,Oct, but there is a good chance that even Nov. would be fine and prices go down.
Summer in Israel is very hot (July - September) but rest of seasons are much more comfortable for trip. mostly i recommend to visit on spring or autumn which is October-November for autumn or April - June for spring.
Except of July and August that can be pretty hot it is nice weather almost all year long (winters are very mild)
Depends what you are after. In terms of weather, I would say spring time, March-April. Winter is also quite mild compared to Europe with many sunny days.
Enjoy your trip,