Seine water levels in May

For May 2027 the Seine stands at 17% high water risk at its tightest bridges: moderate. It reflects the thirty-year record for May; the live forecast reaches this month about seven months out.

May normally sees the Seine settle into its safe season. High water needs a genuinely exceptional spring from here on.

The long record puts May at high water in about 17% of years, 9th calmest of the twelve months on the Seine. Book July or August for the calmest water; March and February carry the most risk.

The last five Mays, from the official record: 2026 clear · 2025 clear · 2024 3 high water days · 2023 clear · 2022 clear. 2026, 2025, 2023 and 2022 came through May clear; 2024 did not.

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.

To turn this into a date-specific answer, use the cruise checker. The wider picture is on the Seine page and in when to go.