Coastal waters

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

Issued: 17 december 2025 21:29 UTC

A warning to shipping:

Flushing Hook of Holland IJmuiden Texel Rottum Harlingen
south to southwest 7

Zierikzee Delfzijl IJsselmeer Marken
south to southwest 6

Synopsis:

Low southwest of Iceland is slowly moving east. Associated trough moving eastwards across the coastal area, then an second trough.

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

Flushing Hook of Holland IJmuiden
south to southwest 6-7, later decreasing south 5-6,periods of rain, visibility good, in precipitation moderate

Zierikzee
south 4-5, in the western part temporary 5-6,periods of rain, visibility good, in precipitation moderate

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

Rottum
south to southwest 5-6, temporary increasing 6-7,periods of rain, visibility good, in precipitation moderate

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

Harlingen
south to southwest 5-6, temporary possibly 7, later decreasing south 4-5,periods of rain, visibility good, in precipitation moderate

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

Flushing Hook of Holland IJmuiden Texel
south to southeast 5-6, soon increasing 6-7, temporary possibly 8, veering southwest,periods of rain or drizzle, visibility good, in precipitation moderate, possibly poor

Zierikzee
south 4-5, temporary increasing 5-6, later veering southwest,periods of rain or drizzle, visibility good, in precipitation moderate, possibly poor

Rottum
south to southwest 5-6, temporary backing south to southeast, increasing 6-7,periods of rain or drizzle, visibility good, in precipitation moderate, possibly poor

Delfzijl IJsselmeer Marken
south to southwest 4-5, temporary backing south to southeast, increasing 5-6,periods of rain or drizzle, visibility good, in precipitation moderate, possibly poor

Harlingen
south 4-5, soon increasing 5-6, occasionally 7, later veering southwest,periods of rain or drizzle, visibility good, in precipitation moderate, possibly poor

Next forecast will be approximately issued at Thursday 18 december 2025 06.00 UTC.