River Water Watch

The Seine · month by month

Seine water levels in January

The current figure for January 2027 on the Seine is 18%: the chance a sailing runs into high water at the tightest bridges. In short, moderate. It comes from the live forecast, which updates each morning.

January is deep in the Seine's high-water season: the river is locked, rain-fed, and slow to drain, so wet winters stack up under the Paris bridges. Clearance, not depth, is what stops sailings.

Across thirty years of records, January brought high water to the Seine in about 43% of years, 10th calmest of the twelve months. The calmest months here are July and August; the most exposed are March and February.

The last five Januarys, from the official record: 2026 clear · 2025 14 high water days · 2024 1 high water day · 2023 3 high water days · 2022 10 high water days. Year to year it swings: 2025, 2024, 2023 and 2022 met high water in January, and 2026 stayed clear.

On the Seine the risk runs the other way: high water. Too little clearance under the Paris bridges pauses sailings and closes moorings. The river never dries out. It rises.

Sailing on specific dates? The cruise checker scores your exact window, day by day. For the whole season, see when to go or the full Seine page.