Coastal waters

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

Issued: 5 August 2026 03:22 UTC

A warning to shipping:

Flushing Hook of Holland IJmuiden Texel Rottum Delfzijl Harlingen IJsselmeer Marken
southwest 6 Bft

Synopsis:

Low over Scotland is moving northeast. Associated troughs are moving eastward across the coastal region.

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

Flushing Hook of Holland IJmuiden
Southwest 5-6, visibility good.

Zierikzee
Southwest 3-4, increasing 4-5, visibility good.

Texel
Southwest 5-6, later decreasing to west 3-4, later a risk of a shower, visibility good, in precipitation possibly moderate.

Harlingen Rottum
Southwest 5-6, later decreasing 4-5, later a risk of a shower, visibility good, in precipitation possibly moderate.

Delfzijl
Southwest 4-5, temporarily 6 at times, later a risk of a shower, visibility good, in precipitation possibly moderate.

IJsselmeer Marken
Southwest 4-5, temporarily 6 at times, visibility good.

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

Flushing Hook of Holland IJmuiden
Southwest 5-6, decreasing to west to northwest 4-5, visibility good.

Zierikzee
Southwest 4-5, decreasing to west to northwest 3-4, visibility good.

Texel
West 3-4, increasing to 4-5, later 5-6, visibility good.

Harlingen IJsselmeer Marken
West to southwest 4-5, temporarily decreasing to 3-4, visibility good.

Rottum
West to southwest 4-5, later increasing to 5-6, first risk of a shower, visibility good, in precipitation possibly moderate.

Delfzijl
West to southwest 4-5, temporarily decreasing to 3-4, first risk of a shower, visibility good, in precipitation possibly moderate.


Next forecast will be approximately issued at Wednesday 5 August 2026 12.00 UTC.