Budapest is famous for its thermal baths, and a rainy afternoon is the perfect time to experience their soothing waters. The city is dotted with beautiful bathhouses, each offering a unique experience. The Széchenyi Thermal Bath is the largest and most popular, featuring a range of indoor and outdoor pools, saunas, and steam rooms. For a more intimate and luxurious experience, try the Gellért Baths or the Rudas Baths. Soaking in the warm thermal waters will help you relax and rejuvenate, making your rainy afternoon in Budapest a truly memorable one.