Weather for hitchhiking and camping in Iran in November or March

It's now early November and I'm in Tbilisi, Georgia. It's getting very cold at night (for me).

I have long had a plan to hitchhike from here through Armenia and Iran to Kuwait. But I probably expected it to happen a bit earlier before the cold. I need at least a couple of weeks to get a visa for Iran...

So how cold or otherwise unpleasant will the weather be on the route along western Iran?

I only have normal tent, sleeping bag, and clothing. No special cold weather gear and no money to buy expensive stuff.

The other option is to postpone this part of the trip until March. But will that be any warmer/drier?

(I don't intend to do such a trip in the middle of winter or after March. It's either "soon" or "in March".)