Rajasthan’s torrid summers mean that anybody visiting the state any time other than winter (October to March) had best pack light cottons that keep you cool. For winters, woolens are essential. For sweater and jacket is sufficient, although for those who are planning on going deep into the desert – on camel safaris, for instance, it’s advisable to take along heavier woolens, as nights in the desert can get quite chilly.
Please note, that as in most of India, in Rajasthan too certain unwritten norms apply for attire. It’s best to be conservatively dressed (especially if you are a woman-stick to long skirts or pants with short-sleeved tops, or wear local Indian salwar-kurtas). In particular, visitors to places of worship should make sure they don’t reveal too much flesh: tank tops, shorts and halter necks are best left at home.