API tide level

API for water level data

This page contains widgets to demonstrate how the Norwegian Hydrographic Service's tide system Application Programming Interface (API) works. Most commands will return a xml formatted response, and the url of that command will be shown in the url address field at the top of your web browser.

Download the specificaton of this API: API for water level data. Communication protocol (pdf).

The API is open for everybody, free of charge. However, be careful not to abuse the API by excessive polling of data. Proper programming practice will be to cache static data locally and limit request to a neccessary minimum. The API should be able to handle about 20 requests per second, but remember that you share this resource with all other users.

Remember to read the Terms of use. The use of the data is licensed through Creative Commons Attribution 4.0 international (CC BY 4.0).

Simple version for accessing tide data: https://api.sehavniva.no/tidepos_en.html

Location data Position Latitude Longitude Time interval From time To time Datatype All Observations Predictions High and low Reference level Chart datum Mean sea level NN2000 Header (optional for pdf) Return type XML PDF file Text file Language Nynorsk Bokmål English Interval 10 min 60 min Daylight savings time Do not use dst Use dst Time zone Not selected UTC+1 UTC		Station info Station type Permanent gauges Available languages Availiable file formats Language Nynorsk Bokmål English Suggested standard levels for menus etc Position Use general position Geografisk bredde Geografisk lengde Språk Nynorsk Bokmål English Constituents Station code Observation time Station code Available yearly and monthly means Station code Tide zones
Location levels Position Latitude Longitude Reference level Chart datum Mean sea level NN2000 Header (optional for pdf) Language Nynorsk Bokmål English Return type XML PDF file
Station levels Station code Reference level Chart datum Mean sea level NN2000 Language Nynorsk Bokmål English Return type XML PDF file	Constituents ROMS model Station code Latitude Longitude Yearly and monthly means Station code From year To year Reference level Chart datum Mean sea level NN2000
Tide table in pdf format Position Latitude Longitude Language Nynorsk Bokmål English Year Header (optional)
Sea level change Position Latitude Longitude Language Nynorsk Bokmål English From To