Velkommen til api.met.no
English version.
api.met.no/weatherapi er et grensesnitt mot et utvalg av data fra
Meteorologisk institutt.
Dataene er fritt tilgjengelige for bruk under disse betingelsene. Se også egne
vilkår for bruk av tjenesten.
Det finnes mange tredjepartsbiblioteker
for tjenesten i forskjellige programmeringsspråk.
Alle jevnlige brukere av API anbefales på det sterkeste å abonnere på vår
epostliste for API-brukere
siden dette er den eneste kanalen vi vil kommunisere planlagte endringer
på utenom websidene (se arkivet
for tidligere meldinger).
For driftsstatus and vedlikeholdsmeldinger, se status.met.no
(vennligst lag bokmerke i tilfelle siten er utilgjengelig).
For informasjon over hvilke data som er tilgjengelig, samt hvordan
disse kan brukes, se dokumentasjonen (engelsk tekst).
Data som eies av andre enn Meteorologisk institutt er ikke
tilgjengelig for allmenn bruk. Dette står spesifisert i
dokumentasjonen for hvert enkelt produkt. Denne problemstillingen
gjelder spesielt radarbildet over Norden og satellittbildene. Les
dokumentasjonen for hvert enkelt produkt før bruk.
Tilgjengelige produkter:
Alerts ⚠
- Airqualityforecast 0.1
- Forecast of air-quality for locations in Norway
- Forestfireindex 1.1
- Reporting danger level of forest fires.
- MetAlerts 1.1
- Weather alerts from the Norwegian Meteorological Institute
Astronomy 🌣
- Sunrise 2.0
- Calculate sun/moon rise/set for a given place
Aviation ✈
- Aviationforecast 1.6
- Textual aviation weather forecasts
- NLAroutes 1.0
- Vertical cross sections for flight routes
- Routeforecast 1.0
- Maps and vertical cross sections for offshore flight routes
- Sigcharts 1.0
- Significant Weather Charts for aviation
- Sigmets 2.0
- Get sigmets and airmets for Norway
- Spotwind 1.1
- Spotwind forecasts for airport landing systems
- Tafmetar 1.0
- Receive Taf/Metar from airports
- Turbulence 1.1
- Turbulence prognosis
- VerticalProfile 1.1
- Vertical weather profiles for aviation
- Volcanicashforecast 0.1
- Norwegian national volcanic ash products including forecast
Lightning ☇
- Frost 1.0
- REST API for meteorogical observation data
- Radar 2.0
- Radar images from various locations
Marine ⚓
- 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.
- Oceanforecast 0.9
- Ocean forecast for a specified place
- Oslofjord 0.1
- Current maps for Oslofjorden and Drammensfjorden
- Soundprofile 1.0
- Vertical profiles in the ocean off the Norwegian coast
- Textforecast 2.0
- Textual weather forecast for Norwegian land and sea areas
- Tidalwater 1.1
- Tidal water information
Military ⚔
- 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
Observations 🌡
- Frost 1.0
- REST API for meteorogical observation data
Other ⚙
- Weathericon 2.0
- collection of weather icons.
Satellite 🛰
- Geosatellite 1.4
- Images from geostationary satellites
- Polarsatellite 1.1
- Images from satellites in polar orbit
Weather ⛅
- ExtremesWWC 1.2
- The Wettest, Warmest and Coldest places
- Frost 1.0
- REST API for meteorogical observation data
- Locationforecast 2.0
- Weather forecast for a specified place
- Nowcast 2.0
- Immediate weather forecast for specified locations in the Nordic area
- Probabilityforecast 1.1
- Probability forecast for a specified place
- Radar 2.0
- Radar images from various locations
- Subjectiveforecast 1.0
- Forecasts and analyses charts from the meteorologist
- Textforecast 2.0
- Textual weather forecast for Norwegian land and sea areas
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After several months in beta, Nowcast 2.0 is finally officially launched. Both
this and Locationforecast have now got a definite date for termination of the
old versions.
Based on popular feedback we have decided to continue the XML format for
Locationforecast and Nowcast into the foreseeable future. For this purpose we
have added a /classic XML variant to Nowcast, which is basically identical to
the version 0.9 format. This means porting from the old version should be much
faster than rewriting to use JSON.
To support the XML format in the future, we will extend it to include the new
symbol codes as introduced in Weathericon 2.0. Please use this instead of the
numerical codes which are now deprecated. Starting today the symbol elements
will look like this:
<symbol id="PartlyCloud" number="3" code="partlycloudy_day"/>
You can then link this to the partlycloudy_day.png icon which can be downloaded
in Weathericon 2.0.
Some future additional changes to the XML format are to be expected. Some time
within the next six months we will remove the following elements from the XML
format; please don't use them in your clients:
<temperatureProbability unit="probabilitycode" value="0"/>
<windProbability unit="probabilitycode" value="0"/>
<symbolProbability unit="probabilitycode" value="1"/>
Termination of old versions
Now that both products have been finalized, we have decided it is time to say
goodbye to the old versions, hailing from 2014 and 2016 respectively. On March
1st, 2021 the following products will no longer be available:
- Locationforecast 1.9
- Nowcast 0.9
- Weathericon 1.1
Please update your systems to use the new version if you haven't already. If you
keep running into 403 Forbidden errors, remember that according to the Terms of
Service you must identify yourself with a unique User-Agent HTTP request header
with contact information.
New version of Yr.no
As some of you may have noticed, yr.no now points to the new version (formerly
the mobile site) and the old layout has been moved to retro.yr.no. The latter
site is expected to be turned off in the summer of 2021; at the same time the
old Yr API (varsel.xml/forecast.xml) will disappear. By this time users must
have converted to use Locationforecast/2.0 for continued service.
The Yr developers at NRK are working on making a downloadable dump of the
existings locations database, mapping place names to lat/lon coordinates. We'll
be back with more information on this once we have something to report.
Minor changes to other products
Sigcharts has gotten a new parameter validdate which makes it possible to
see which day a plot is valid for. This is now included in the available list.
Turbulence has had some airports removed and Vigra airport added. We have also
enabled search by ICAO code instead of location name; this will become the
default search method in the future (which means the links in available will use
icao instead of location parameters). We recommend updating your clients to
use this at your earliest convenience.
Nowcast 2.0 beta
After the very successfull update to our Locationforecast service, we have now
upgraded Nowcast to a similar modern spec.
New features include:
- a new JSON format, very similar to Locationforecast
- radar precipitation coverage extended from only Norway to include Sweden,
Finland and Denmark (currently only northeastern parts)
- real-time corrected temperature forecasts for the whole MEPS area, see the
data model documentation
While some parts are still missing (documentation, JSON Schema, radar data for
the rest of Denmark) it is currently useable enough that you can familiarize
yourself with the new data format and start upgrading your clients. Currently we
do not have any estimate for how long the current 0.9 version will be supported.
Geosatellite images
After having been unavailable for two years due to licencing issues, we have
finally resolved the situation. Unlike previously when only a small subset was
available, we are now able to offer you the whole range of EUMETSAT image
products under the CC BY 4.0
license.
With over 4000 different images at any one time this also means that the
complete available list is very large and may result in timeouts. We therefore
urge you to filter this on your specific requirements, e.g. area, type and size.
Future works in progress
We are currently working on updating our Oceanforecast service to the new JSON
standard. We have also started on a new project for improving our map services
(as seen on Yr.no). During our cooperation with the University of Oslo we have
gotten valuable feedback from students regarding map integrations on mobile app
development, but we are also very interested to hear from web developers what
kind of maps you would like to see and which protocols and formats you would
like to see supported.
If you have any feedback, please send us an email at weatherapi-adm@met.no with
the subject "Map feature requests". We will later collate this and use for
planning new map products which hopefully should be available next year.
News archive
Endringslogg
- Locationforecast: XML updated with new symbol codes: 2020-12-14
Since Weathericon/1.1 is deprecated, we have added an attribute code to the
symbol element, corresponding to the filename in Weathericon/2.0.
- Nowcast: version 2.0 launched, 2020-12-13
2.0 out of beta, added classic.xml output. Version 0.9 will be removed 1 March 2021
- Turbulence: Minor update, 2020-12-07
- Vigra added. Fagernes, Narvik and Gimsøya removed
- Now possible to search using ICAO code. In the future this parameter will be default,
and location removed from the available string
- Sigcharts: Version 1.0: 2020-11-30
Optional parameter validdate added
- Nowcast: Changes to current version 0.9, 2020-11-09
We have replaced the old production backend for version 0.9 with the new one
as used by beta version 2.0. This will incur some trivial changes, but is not
expected to cause any compatibility problems for well-behaved clients:
- The
@xsi:noNamespaceSchemaLocation and Model@name attributes will be updated to reflect the new production - An
@altitude attribute will be added to the location element (same as for Locationforecast) - The number of decimals in latitude/longitude is no longer fixed
- Geosatellite: Usage restrictions lifted, 2020-10-01
- After several revisions of the data policies we have finally confirmed that
the satellite images can be freely distributed and available to all API users
under the normal CC-BY 4.0 conditions.
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Andre datakilder ved Meteorologisk institutt
- Frost, API for observasjoner og klimadata
- THREDDS for modeller og forskningsdata, inkludert hav og is
Se frie meteorologiske data på met.no
for en komplett liste over tilgjengelige for data nedlasting.
Kontakt
Ved spørsmål om rettigheter og bruk av data, se vår Licensing and Data Policy.
Informasjon om behandling av persondata, se vår personværnerklæring.
For tekniske spørsmål, se vår kontaktinformasjon.