Coastal waters

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

Issued: 18 december 2025 05:53 UTC

A warning to shipping:

Flushing Hook of Holland IJmuiden Texel Rottum
south to southwest 7

Zierikzee Delfzijl Harlingen IJsselmeer Marken
south to southwest 6

Synopsis:

Low south of Iceland is slowly moving eastwards. Associated trough over the coastal area is moving eastwards in the morning. Second trough will reach the North Sea in the afternoon and is moving across the coastal area during the night.

Forecast valid from 06:00 to 18:00 UTC:

Flushing Hook of Holland IJmuiden
south to southwest 6-7, temporary decreasing 5-6, backing south to southeast,especially in the morning rain or drizzle, visibility good, in precipitation moderate

Zierikzee
south 4-5, in the west occasionally 6,especially in the morning rain or drizzle, visibility good, in precipitation moderate

Texel
south to southwest 6-7, temporary decreasing 5-6, backing south to southeast, later possibly 8,especially in the morning rain or drizzle, visibility good, in precipitation moderate

Rottum
south to southwest 5-6, in the west first 6-7, temporary decreasing 4-5, later backing south to southeast,temporary light rain, visibility good, in precipitation moderate

Delfzijl IJsselmeer Marken
south to southwest 5-6, temporary decreasing 4-5, later backing south to southeast,temporary light rain, visibility good, in precipitation moderate

Harlingen
south to southwest 5-6, temporary decreasing 4-5, later backing south to southeast,especially in the morning rain or drizzle, visibility good, in precipitation moderate

Forecast valid from 18:00 to 06:00 UTC:

Flushing Hook of Holland IJmuiden
south 6-7, decreasing southwest 5-6, later 4-5,light rain or drizzle, later then a shower, visibility good, in precipitation moderate, possibly poor

Zierikzee
south 5, occasionally 6, decreasing southwest 4-5, later 3-4,soon light rain or drizzle, visibility good, in precipitation moderate, possibly poor

Texel
south 7, occasionally 8, decreasing southwest 5-6,light rain or drizzle, later then a shower, visibility good, in precipitation moderate, possibly poor

Rottum
south 6, occasionally 7, veering southwest 5-6,soon light rain or drizzle, visibility good, in precipitation moderate, possibly poor

Delfzijl Harlingen
south 5-6, first possibly 7, veering southwest, later decreasing 4-5,soon light rain or drizzle, visibility good, in precipitation moderate, possibly poor

IJsselmeer Marken
south 5-6, decreasing south to southwest 4-5,soon light rain or drizzle, visibility good, in precipitation moderate, possibly poor

Next forecast will be approximately issued at Thursday 18 december 2025 12.00 UTC.