The best thing you can do a rainy afternoon in Amalfi is visit Andrea Pansa and try their delicious pastries. The place is beautiful, comfortable and charming. Their sweet recipes are delightful, the white china coffee services are lovely and the table linens are exquisite. And if the weather is nice you can enjoy its terrace, which is a beautiful place for people watching. They have the best Tiramisu that I’ve ever eaten and believe me, I've eaten tons of Tiramisu! I also recommend the Lemon delight. It was unexpectedly good!