infact this is the super ideal time to travel.
all the roads are open and can travel upto Khunjerab.
but don't delay further, because after September there start snowfalling at mountains and many roads blocked.
and if you really want to travel save, then get the new motorway.
You can travel from sukkur to Besham in 16 hours only.
but after besham, the road is not good.
But Besham and its surroundings has many attractions too. you can fully enjoy.