In reply to Trouble:
I was out there for August and September last year the weather was fine until the end of Sept.
It always turns bad at the new moon for a couple of days and then clears up.
It was around 25c during the day and you could go out a t-shirt or light fleece at night in Hauraz.
Up in the valleys (4500m and above) it got down to well below freezing during the night and would freeze our 25l Jerry can of water solid in 1 night.
We got a bit of snow during the last week of Sept but it just depends on when the wet season starts.
Kev