Tidalwater - Tidal water information


Returns data about waterlevel for a given harbor.

Waterlevel have two components: tidal forces and the influence of weather. Tidal forces is the basis for calculating waterlevel. Forecast of weather conditions for the specified harbor is then used to adjust this basis. Weather condition adjustments are generally available for the immediate three days.

Values are given as centimeters above seamap zero.


Available is implemented at


A request must specify the harbour of interest. Datatype and content-type are optional.

harbor (mandatory)

Specify the harbor of interest.

Available harbors:

andenes, bergen, bodø, hammerfest, harstad, heimsjø, helgeroa, honningsvåg, kabelvåg, kristiansund, måløy, narvik, ny-ålesund, oscarsborg, oslo, rørvik, stavanger, tregde, tromsø, trondheim, vardø, viker, ålesund

content_type (optional)

Specify content type for the returned data.

Currently only valid value is text/plain (default)

datatype (optional)

Specify type of data, currently only valid value is weathercorrection (default)

Example requests


1.1 2018-07-04

Available implemented, only harbor is now a mandatory parameter

1.1 2013-01-28

- weather correction data is changed
- old product like tidal is removed

1.1 2008-02-25

- New version 1.1 available
- Changed name of parameter: type => datatype.
- Parameter datatype is now mandatory.
- Access to tidal data has been restricted.
- Old version, 1.0, expires 1.april 2008.