Seine water levels in July

July 2027 currently gives a Seine cruise a 100% chance of going exactly as planned: low risk. Until the live forecast reaches July, about seven months ahead, this is the thirty-year record.

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.

July is the Seine's calmest water. The locks keep depth, and summer rain rarely comes fast enough to threaten clearance.

Across thirty years of records, July ran as planned on the Seine in about 100% of years, 2th calmest of the twelve months. The calmest months here are September and July; March and February lean hardest on the rain.

The last five Julys, from the official record: 2026 clear · 2025 clear · 2024 clear · 2023 clear · 2022 clear. None of the last five Julys hit high water.

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.