Key Aspects:
- Multiple river cruise lines are alerting guests to itinerary changes, ship swaps, and even cancellations due to low water levels.
- The Danube and Rhine Rivers are most impacted by ongoing drought and heat waves.
- Cruise lines are monitoring river conditions closely and will update guests as needed if their sailings are impacted.
Exceptionally low water levels on some of Europe’s most iconic rivers are having a dramatic impact on river cruises. The Danube and Rhine Rivers are especially low, making it challenging for ships to navigate the rivers safely.
Multiple river cruise lines have now reached out to guests to alert them to potential itinerary changes and ship swaps to keep sailings operating in these challenging conditions. In some cases, cancellations have been necessary.
Viking, for example, has the largest river cruise ship fleet in the industry and is continually monitoring river conditions.
“Viking is uniquely positioned to manage water-level situations such as these. We have decades of experience navigating Europe’s rivers,” the cruise line explained.
“We also deploy identical sister ships on the same itinerary, sailing in opposite directions. In various water-level situations, when disruptions occur, we can implement ‘ship swaps,’ allowing guests and their luggage to transfer to their exact same stateroom on an identical sister ship on the other side of the affected section of river.”
Saga Cruises is similarly monitoring conditions and updating guests as needed.
“Your comfort and enjoyment remain our highest priorities,” the cruise line confirmed. “Should any changes affect your cruise, we will contact you directly, in strict departure date order, to discuss the options available to you.”
Similar to hurricane storm changes, it is possible that river cruise changes will be made at the last minute. If guests are not departing on their sailings for several weeks, they should not expect adjustments until closer to the sailing date, as water levels can fluctuate significantly if enough rainfall is received.
Uniworld River Cruises has also reached out to guests about itinerary changes, explaining how ship swaps work. The August 9, 2026 itinerary will not only be swapping ships from the SS Elisabeth to the SS Antoinette, but the first four days of the sailing are adjusted with different tour offerings.
The transfer from the SS Elisabeth to the SS Antoinette will happen on Thursday, August 13.
“Please be assured that our onboard and on shore teams will be providing our guests with the luxury Uniworld experience that they expect,” the cruise line explained. “The transfer between ships will be handled seamlessly and your luggage will be handled by our team.”
Onboard programming and activities are not impacted by the ship swap. Guests who have endured similar ship swaps in the past have noted that lengthy bus rides are occasionally necessary between vessels, but the cruise line does everything possible to ensure a smooth experience.
Meanwhile, Avalon Waterways has outright cancelled select “Danube Dreams” cruises due to low water levels. Guests are being contacted individually if their cruise is impacted.
“We will continue to provide advance communication, should more cruise cancellations be warranted, as conditions evolve,” the cruise line noted.
River cruises must be mindful of water levels at all times. Should water levels become too low, ships may risk running aground, which could cause damage or injuries. Furthermore, if water levels are too low, ships may be unable to complete planned routes.
How Low Are the River Levels?
Much of Europe has been afflicted with heat waves and a severe drought that began early in the summer. These challenging weather conditions have contributed to historically low water levels on major rivers throughout the region.
According to RiverCruise.app, water levels on the Rhine as well as both the upper and lower portions of the Danube are all disrupted and causing navigation issues.
Along the Rhine, the Castles Gorge (or Rhine Gorge) region of the river is particularly low. This is often the first stretch of the river that will show problems that could impact river cruise ships.
The Database for Hydrological Time Series of Inland Waters (DAHITI) shows that Rhine water levels have been most recently measured at 3.07 meters (10.0 feet). That figure was obtained from satellite altimetry on July 21, 2026, and is the lowest the river has been since August 2022. The historic low of 1.65 meters (5.4 ft) was in November 2018.
On the Danube, DAHITI shows the most recent water level measurement overall to be 70.83 meters (232.4 ft). This is the lowest the river has been in the database’s history, which goes back to July 2002.
Because the Danube River stretches from Germany to Romania, there can be great variation in depth along its 1,770-mile length. Exactly how river cruises on the Danube are impacted depends on which specific sections they travel.
