Question: My partner and I were planning to visit Iran in October this year for 3 weeks. Our destinations include some deserty locations like Yazd, Garmeh and Persepolis, but I am a little concerned about the heat discomfort for me. I have a tendency to overheat easily, which makes me feel dreadful and saps the joy out of things, and I can only imagine that wearing hejab will exacerbate this.
Answer: In October the weather is slightly cooler because the autumn will be in Iran and the weather in most of the cities is moderate.
Dress code for females in Iran is not really specific and defined. As a tourist you have to cover your hair.
You can wear loose fitting garments which cover your arms and legs up to knee over pants and a scarf in summer. Select the light dresses with light color for a summer visit of Iran.
Dress attire for men is similar to that in Europe but the dress code for men in Iran prohibits short trousers and short sleeved shirts and t-shirts. Although Iranian men are not dressed in shorts, they will almost certainly wear short sleeved shirts and t-shirts. Sandals and flip flops without socks are acceptable for both genders and makes no problem.
Check cheap Iran tours at http://www.uppersia.com/Iran-tours.