api.met.no/weatherapi is an interface to a selection of data produced by MET Norway. The data are available for use under a Creative Commons license. See also separate conditions for use of the service. Several people have developed third-party client libraries for various programming languages.
All regular users of the API are strongly recommended to subscribe to our API-users mailing list as this is the only channel on which we will communicate planned changes outside the API itself (see the archives for past notifications).
For operational status and maintenance notifications, see status.met.no (please bookmark in case there is a problem with the site).
Data owned by other institutions than MET Norway is not available for unrestricted public use. This is specified in the documentation of each product. Examples of such products are the Nordic radar images and some satellite images. Refer to the documentation of each product.
Ho, ho, ho and some API stocking fillers 2019-12-20
We hope you all have been good developers this year, in which case you can look forward to some new improved products next month (for those who have been bad we will also be taking some away).
On December 3rd we launched the new backend for locationforecast/1.9. In connection with that some of our users have noted that the topography for Norway is not as accurate as before. This is because we use a terrain model with a slightly coarser resolution. This does not affect the quality of our temperature forecasts. However, due to requests from our users we will soon return to a higher resolution topography for Norway.
Next year we also plan to introduce a higher resolution topography for our global forecasts. This will make the forecast more accurate when not using the recommended "msl" parameter to indicate elevation, which is hard to implement e.g. in mobile apps.
We are also working hard on finalizing the JSON format in 2.0, as well as improving the weathericon symbols so that you won't have to call sunrise to know if to use a night or day version.
Due to popular demand, we have decided to continue GIF animation in radar/2.0 which will launch on Feb 3rd. Everything else will be different though, included sizes (only one), areas (previously called radarsites), types (more options) and formats (all static images are now in PNG).
More changes on Feb 3rd
Next year the sigcharts in upperwindweather will be moved to a new product, possibly with some new charts to follow. The upperwindweather product will then be deprecated, and eventually removed from the public api.
We will also be launching a new version 2.0 of icemap with more and better maps of the Arctic. The old version 1.5 will continue running until March.
We have also decided to retire the little-used lightning product on api.met.no. Since you now can download lightning data more or less in real time from Frost, there is little use for 5 min old data from the API. The data will continue to be delivered in UALF format as before. You can test out the new product here (remember to register for a developer key).
Finally the radar/1.5 and uvforecast products will be end-of-lifed on May 15th, to be replaced by the improved radar/2.0 and locationforecast/2.0 respectively.
Changes to Textforecast and Locationforecast 2019-11-13
We will shortly be making some changes to the existing versions of Textforecast and Locationforecast.
The seahigh and seabank products will be replaced with a new, auto-generated product (named sea) which will be available on December 3rd (possibly earlier). The old forecasts will continue production until February 1st, after which requests will be returned the new sea forecast instead.
We will shortly be changing the backend for the locationforecast to a new, cloud-based service. For the immediate future there will be very little change for the users except for higher performance. There are some minimal changes to the version 1.9 output, in short:
If you experience any problems due to these changes, we suggest temporarily switching over to LocationforecastLTS until you can make the necessary changes.
As Locationforecast and LocationforecastLTS currently runs on the same old
backend and is virtually similar, we have decided to end-of-life this product
as it is impossible to guarantee the same output on the new backend. This
means LocationforecastLTS will be officially deprecated once the new model
is in production, but will not be terminated until the end of February 2020
at the earliest (which should be plenty of time to change your
implementation). Since the new backend is much faster and has a more correct
forecast, we suggest changing over to I
Plans for next year
Some of the planned changes for the next 6 months include:
In the long term we will be launching a new 2.0 version, which features:
At the same time we will be deprecating the Probabilityforecast and UVforecast products since the data will now be available in Locationforecast instead.
UVforecast: These are produced by external parties, and we experienced distribution problems last summer. Since UV data will be available in locationforecast/2.0, the UVforecast product will be terminated after Easter 2020. UV maps should still be available from external distributors.
ExtremesWWC: This product will be replaced by a similar feature on our observations and climate API frost.met.no.
We do not have exact dates for the above changes, but will return with updates once we have more specific information.
Other data sources at MET Norway
- Frost, API for observations and climate data
- THREDDS for model and research data, including sea and ice models
See free meteorological data on met.no for a complete list of data services.