In June/July we were on River Elbe river cruise,starting in Hamburg. North of Meissen, we got sand locked; the ship could not move. Not enough water through the spring and summer, so water table was very low. We stayed on the ship for hotel land meals, but were bussed to Meissen one day 164 Km; next day, they bussed people to the next port city, Dresden, back, passed Meissen 164 km, to Dresden only 24 km from Meissen. Both days were rainy, too rainy and cold for my husband and I to go to Dresden, besides we didn't want to go back 164 km then the 24km to Dresden, when we could have done that the day we went Meissen; instead of giving u s the 3 hours free time in Meissen, we could have gotten on the bus and went to Dresden, and got back to the ship a little later. But, no, they bussed those people who went all the way to Meissen then DResden the second day. Too much driving, then we had to be bused to the last port on departure date, then bused to Prague, so too much bus riding. We got reimbursed well, too, plus lunch euros each day each person.
At the same time we were sand locked, three or 4 GCT river ships were stuck in one city because the water on the Danube was way too high for the captain to go under the bridges, even though he brought the ship's top side as low as he possibly could. So they had more water than they could handle, and we had none.
Our captain did very well getting us to a safe spot but he was so landlocked he was prohibited from trying to go even though some ease occurred on the 3d day.
So, there you have it, August, June/July.