Introduction

This is version 3 of the MET Weather API. For additional information, please read our Getting Started tutorial, Usage guide, Terms of Service and F.A.Q.

Available products:

Product	Version	Also	Description	Available	Schema	Swagger	Healthz
Airqualityforecast	0.1		Forecast of air-quality for locations in Norway ⚠			✓
Aviationforecast	1.6		Textual aviation weather forecasts ✈	✓		✓
Frost	0.9		REST API for meteorogical observation data ⛅🌡☇			✓
Geosatellite	1.4		Images from geostationary satellites 🛰	✓		✓
Gribfiles	1.1		Serve grib files on the coast from Oslo and Western Norway ⚓	✓		✓
Icemap	1.0		Maps as images showing current ice conditions in the arctic regions. ⚓	✓		✓
Locationforecast	2.0		Weather forecast for a specified place ⛅		✓	✓
MetAlerts	1.1		Weather alerts from the Norwegian Meteorological Institute ⚠	✓		✓
Metgc	1.0		Deliver meteorological forecast data in METGM/C format for defined areas ⚔	✓		✓
Metgm	1.0		Deliver meteorological forecast data in METGM/C format for defined areas ⚔	✓		✓
NLAroutes	1.0		Vertical cross sections for air ambulance flight routes ✈	✓		✓
Nowcast	2.0		Immediate weather forecast for specified locations in the Nordic area ⛅		✓	✓
Oceanforecast	2.0		Ocean forecasts for points at sea in Northwestern Europe ⛅⚓			✓
Oslofjord	0.1		Current maps for Oslofjorden and Drammensfjorden ⚓	✓		✓
Polarsatellite	1.1		Images from satellites in polar orbit 🛰	✓		✓
Radar	2.0		Radar images from various locations ⛅☇	✓		✓
Routeforecast	1.0		Maps and vertical cross sections for flight routes offshore and over land ✈	✓		✓
Sigcharts	2.0	1.0	Significant Weather Charts for aviation ✈	✓		✓
Sigmets	2.0		Get sigmets and airmets for Norway ✈			✓
Soundprofile	1.0		Vertical profiles in the ocean off the Norwegian coast ⚓	✓		✓
Spotwind	1.1		Spotwind forecasts for airport landing systems ✈		✓	✓
Subjectiveforecast	1.0		Forecasts and analyses charts from the meteorologist ⛅	✓		✓
Sunrise	2.0		Calculate sun/moon rise/set for a given place 🌣		✓	✓
THREDDS	1.0		Dataset archive including model runs and observation timeseries ⛅⚓🌡🛰☇
Tafmetar	1.0		Receive Taf/Metar from airports ✈		✓	✓
Textforecast	2.0		Textual weather forecast for Norwegian land and sea areas ⛅⚓	✓	✓	✓
Tidalwater	1.1		Tidal water information ⚓	✓		✓
Turbulence	1.1		Turbulence prognosis ✈	✓		✓
VerticalProfile	1.1		Vertical weather profiles for aviation ✈	✓		✓
Volcanicashforecast	0.1		Norwegian national volcanic ash products including forecast ✈			✓
Weathericon	2.0		collection of weather icons. ⚙			✓

This list is also available in APIs.json, JSON and XML formats.

Data restrictions

We have a few cases with data that are not freely available. This is marked in the documentation for each product, under the heading Restrictions. For more information, see License and Data Use.

Versions

See the documentation for product versioning. We also recommend reading the section about error handling.

Errors and return values

Sometimes things don't go as planned. The API will return a (hopefully) explanatory message, formatted as HTML (if using a browser or sending an Accept: text/html request header), otherwise as plain text.

For more information, see the HTTP status codes documentation. In addition you can also check the HTTP status code and the X-ErrorClass response header when using an automated client.

ErrorClass header

In addition to the HTTP Status Code the API also returns an X-ErrorClass response header which might explain further the cause of the error. The following codes are currently used:

This list is non-exhaustive, additional codes can be added over time (normally implemented in future versions).

Note that Unexpectedmissingdata returned a 404 in the old (version 2) API. This was changed as it really is not a Client Error but an error in the backend, but that was impossible for the user to discern.