There is no strict dress code in Japanese temples and shrines but it's recommended to stick to smart casual or comfy but conservative clothing. It's important to remember that many locals visit these places for prayer.

While there is no formal or strictly enforced dress code for visiting Meiji Shrine in Tokyo, visitors are expected to dress respectfully and modestly as it is a sacred Shinto site. For the general public, "smart casual" is the best approach. It is recommended to avoid overly revealing clothing, such as very short skirts, tank tops, or gym wear. Hats should be removed before passing through the Torii gates and when entering the main worship areas as a sign of respect to the enshrined deities. Because the approach to the shrine involves long, wide paths covered in coarse gravel (tamajari), comfortable and sturdy walking shoes are highly recommended over high heels or flip-flops. If you are attending a formal ceremony or a traditional Shinto wedding at the shrine, more formal attire (suits for men and dresses or kimonos for women) would be expected. Additionally, since the shrine is surrounded by a dense forest, wearing bug repellent or covering your skin is a practical tip to avoid stings during the summer months.