Coastal waters

The weatherforecast for Netherlands coastal waters and adjacent lakes and estuaries.

Issued: 17 december 2025 10:29 UTC

A warning to shipping:

Flushing Hook of Holland IJmuiden Texel
south to southwest 6

Other districts:
no warning

Synopsis:

Low remains fairly stationary southwest of Iceland. Associated trough moving eastwards across the the coastal area Thursday night and morning. A second trough will reach the southern part of the North Sea at the end of the period.

Forecast valid from 12:00 to 00:00 UTC:

Flushing Hook of Holland IJmuiden
southwest 3-4, increasing south to southwest 5-6, visibility good, in the coastal area first locally moderate

Zierikzee
southwest 2-3, increasing south 3-4, later 4-5, visibility good, first locally moderate

Texel
southwest 3-4, increasing south to southwest 5-6, later 6-7, visibility good, in the coastal area first locally moderate

Rottum
west to southwest 2-3, increasing south to southwest 4-5, later 5-6, visibility good, in the coastal area locally moderate to poor, first risk of fog

Delfzijl
southwest 2-3, increasing south to southwest 3-4, later 5-6, visibility good, locally moderate to poor, first risk of fog

Harlingen
southwest 2-3, increasing south to southwest 3-4, later 5-6, visibility good, first locally moderate

IJsselmeer Marken
southwest 2-3, increasing south to southwest 3-4, later 5-6, visibility moderate to poor, first risk of fog, gradually increasing good

Forecast valid from 00:00 to 12:00 UTC:

Flushing Hook of Holland IJmuiden Rottum
south to southwest 5-6, temporary increasing 6-7,soon rain, visibility good, in precipitation occasionally moderate

Zierikzee
south to southwest 4-5, in the western part possibly occasionally 6,soon rain, visibility good, in precipitation occasionally moderate

Texel
south to southwest 6-7, later decreasing 5-6,soon rain, visibility good, in precipitation occasionally moderate

Delfzijl IJsselmeer Marken
south to southwest 5-6, later decreasing 4-5,soon rain, visibility good, in precipitation occasionally moderate

Harlingen
south to southwest 5-6, possibly occasionally 7, later decreasing 4-5,soon rain, visibility good, in precipitation occasionally moderate

Next forecast will be approximately issued at Wednesday 17 december 2025 18.00 UTC.