Rhine water levels in July

The current figure for July 2027 on the Rhine is 80%: the chance a sailing goes ahead as planned, without low water interfering. In short, moderate. Until the live forecast reaches July, about seven months ahead, this is the thirty-year record.

Affected rarely means canceled. On the Rhine it usually means a ship swap, a rerouted day, or a stretch covered by bus, almost always at the gorge between Rüdesheim and Koblenz. That shallow reach decides every Amsterdam to Basel itinerary.

By July the melt is tapering and the rivers begin their slow summer decline. Most years hold up; a hot, dry early summer shows first in the shallow reaches.

The long record has July running as planned in about 80% of years, 4th calmest of the twelve months on the Rhine. Book June or March for the calmest water; September and October are the months to check before you commit.

The last five Julys, from the official record: 2026 30 low water days · 2025 clear · 2024 clear · 2023 3 low water days · 2022 16 low water days. Year to year it swings: 2026, 2023 and 2022 met low water in July, and 2025 and 2024 stayed clear.

For your own dates, the cruise checker scores the exact window day by day. The Rhine page carries the live gauges, and when to go compares all four rivers.