Dielette Harbour

Dielette Harbour is a specialized harbour-based break in Flamanville, Normandy, best thought of as a rarely-on fallback. Multiple sources emphasize that it only works on rare occasions (around five days per year), meaning even great swell/wind combinations may still produce no surf if the swell angle/size isn’t right for wrapping into the harbor. When conditions align, the wave starts around a 1.0–1.5 m NW/W swell and can hold much larger (up to about 4 m+). The break is described as a beach/harbour break with short, punchy left and right waves—often with hollow sections—so the riding can be very intense, but typically remains short on average days. Wind is a key part of getting it groomed: east and south-east winds are described as offshore for the wave in the harbor, with the spot commonly set up for those directions. One source also notes a significant wind shadow inside the harbor from sea walls and cliffs, so wind forecasts can be misleading depending on where you stand inside the harbor. Timing matters for safety and rideability. It’s reported as best at low tide (low tide only) with improvement into rising tide, and the approach requires extra caution around harbor edges and navigation channels. Hazards include reef/rocks near the harbor structure and boat traffic, and rescue availability is limited—so it’s important to follow local rules like avoiding active boat lanes.