After an activity on a wet and drizzly day? Wander around the interesting exhibits at Gothenburg Radio Museum. There's always an opportunity to learn a thing or two.
This museum in Hisingen comes recommended by many travelers, so leave a spot for it on your travel itinerary. Don't think that's all there is to do here, though. There are many more spots ready for you to experience after Gothenburg Radio Museum. Liseberg Amusement Park, Universeum, and Gothenburg Opera are not far away.