There are no special clothes worn on Hanukkah. It depends on the family custom as to how much the family dresses up.
One could dress formally, but there are no specific requirements for Hanukkah concerning clothing.
There are no special clothes worn during Channukah.
Clothes that are quite thin and that will not make you too hot.
There are no particular clothing requirements for Hanukkah in Jewish law. Whatever is acceptable for the rest of the year is good for Hanukkah too. Hanukkah is not one of the major Jewish festivals.
No. Costumes are worn on Purim, which is in the spring.
No.
There are no specific traditions concerning special clothing for Hanukkah.
The same kinds of clothes worn in the US (Jeans, T-shirts, etc)
While Hanukkah is a religious Jewish occasion with special blessings and added prayers, it has no special clothing associated with it. Some families like to dress up in the evenings, for the candle lighting, but most families do not.
The Walla Walla tribe wore clothes made of animal skins. Traditional head dresses and outfits were worn for celebrations and rituals.
None. Costumes are worn on Purim.
New clothes are worn on Diwali. They wear ethnic clothes.