We took a Danube River Cruise in about 2009. It was in June. It rained every day! We never got to go up onto the top deck where they had chairs to sit and watch the passing scenery, although I did go up there once briefly to have a look. Even though it didn't rain 24/7 the chairs were wet and therefore not usable. The river was very high and the boat barely made it under several of the bridges.
But it definitely was nowhere near as bad as things are there today!
They have record high flood waters. People are losing everything. We thought the water was high when we were there, there was a lot of debris in the water including trees and tree limbs and the water was right up to the top of the banks. But nothing like this.
There are bad floods here in the US as well. Don't know what is happening. What is causing it?