Gauge Botlek Geulhaven: current water level

Water level at the Botlek Geulhaven gauge

On 25/10/2026 at 05:30 the Botlek Geulhaven gauge read 18 cm, 69 cm lower than 24 hours earlier.

Gauge Botlek Geulhaven is in the Nieuwe Maas en Oude Maas area and measures the water level in cm relative to NAP.

Reference planes

The reference planes at the Botlek Geulhaven gauge, evaluated at the gauge's position.

• OLW−0.70 m NAP
  OLW 2025
  Area: Nieuwe Maas tot de Maeslantkering, Het Scheur, Oude Maas vanaf km 997 en Hartelkanaal oost van de Hartelkering (Rotterdamse haven, binnen de keringen, getij)
  Source: Rijkswaterstaat; RWS Berekening OLW 2025 (CIV DMC, A. Baak, 5 Feb 2026, pp. 3-5); 2026-02-05