Irradiation data for
every place on Earth.

Easily accessible with Meteonorm.

Meteonorm Software

Meteonorm is a unique combination of reliable data sources and sophisticated calculation tools.

Global climate database

Meteonorm generates accurate and representative typical years for any place on earth. You can choose from more than 30 different weather parameters.

The database consists of more than 8 000 weather stations, five geostationary satellites and a globally calibrated aerosol climatology. On this basis, sophisticated interpolation models, based on more than 30 years of experience, provide results with high accuracy worldwide.

More than a simple data provider

Meteonorm includes two of the best minute models on the market for reliable simulations of large PV plants or energy management & battery systems. It can model urban heat effects to support the development of green cities. It contains algorithms to calculate extreme years, for example to test design limits. You can even simulate Climate Change using IPCC scenarios.

Platform independent

Meteonorm is not only a desktop software: Our web service API and our Dynamic Link Library DLL ensure platform independent access to all data and models of Meteonorm, from everywhere.

An open system

You can import of any third party data, be it from satellites or from measurement stations and still profit from all tools inside Meteonorm.

The intuitive desktop software lets you to easily manage your sites and retrieve the required results in a convenient and fast way. More than 30 different output formats offer maximum flexibility.

Long experience

The first version of Meteonorm was published as paperback handbook in 1985. Ten years later, Meteotest transferred the handbook to a desktop software. In 1998, the coverage of the climate data was extended from Switzerland to the whole world. The global breakthrough was reached with version 6 – back in 2007.

Today Meteonorm has more than 2 000 active users and is included in in almost every PV, solar thermal or building simulation software on the market.

Global standard

All this makes Meteonorm a global standard and a powerful tool for solar energy applications, building design, heating & cooling systems, education, agriculture, forestry and many more.

Solar forecasts?

Our Solar Web Service products SolarForecast, CloudMove and SolarSat provide you with accurate irradiation forecasts. Learn more on the website or have a look at the live demo!

Meteonorm Features

More about the features

  • Global coverage

    Data from more than 8 000 weather stations worldwide and five geostationary satellites.

  • Data period

    The standard periods are 1991–2010 / 1996–2015 for irradiation data and 2000–2009 for other parameters.

  • Current data

    Current data can be downloaded inside the software. Third party data can be imported.

  • Time intervals

    Meteonorm generates monthly, daily, hourly and minute values.

  • Current Data

    Current data can be accessed online directly from the software. User data can also be imported.

  • Interpolation

    Interpolation models calculate typical years for any location worldwide.

  • Uncertainty

    Transparent information on data sources and uncertainty provided for each data set. Validation papers available on the website.

  • Climate change

    Meteonorm includes three IPCC scenarios.

  • Extreme years

    P10 and P90 values available for simulating extreme years. Urban heat effects can be represented.

  • Aerosol climatology

    Globally calibrated gridded dataset by Chris Gueymard. Time period 2000-2015, spatial resolution 0.5°.

  • Topography

    Global 90x90m terrain model. Digitising tool for user-defined horizon lines.

  • Data formats

    36 output formats: CSV, TMY2, TMY3, EPW, PVSol, PVSyst, Polysun, SAM and many more.

  • API and DLL

    Meteonorm core is also available as Dynamic Link Library or Web Service.

Weather Stations in Meteonorm




North America


Central/South America


Asia (with Russia)




Australia and Oceania





Weather stations or satellites?

Weather stations with well-maintained good quality instruments still provide the most accurate data for solar irradiation. They represent the ground truth, which is the relevant parameter for solar energy applications. But weather stations are not always located in the vicinity of the project site and time series may be incomplete.

In this context, satellites have become a valuable source for solar irradiation data, in particular in areas with sparse distribution of met stations. However, this approach also includes disadvantages such as lack of other meteorological parameters, uncertainties in aerosol values, detection of multiple cloud layers, inaccuracies in areas with snow or no data north of 62°.

There is no standard rule which option is the best one. We always recommend combining multiple data sources of ground and satellite data to achieve the lowest uncertainty for resource assessment. Meteonorm includes weather stations and satellite data

Products & Services

You require a specific dataset or analysis? We offer a range of customizeable products and services based on Meteonorm.


The full version licence provides full access to all the data and functions of the Meteonorm software. If you own a licence of Meteonorm version 6 or version 7.x you can upgrade to version 7.2. A EDU licence for universities and schools provides access to a full version of the Meteonorm software and 10 tutorial licences which are valid for one year

Meteonorm Software

Meteonorm Software

675 CHF

(Additional Licence: 338 CHF)


Meteonorm Upgrade

Meteonorm Upgrade

(7.x > 7.2) 200 CHF

(6 > 7.2) 400 CHF

6 > 7.2 Upgrade 7.x > 7.2

Meteonorm EDU

Meteonorm EDU

600 CHF

(Additional Licence: 250 CHF)


Datasets & maps

If you need Meteonorm datasets at specific sites only every now and then, you can buy the typical years you need. Additionally, you can buy historic time series for specific sites from weather stations and satellite data from our measurement archive. We also provide irradiation maps for every region on the globe between 62°S and 62° N.

Typical years

Typical years

125 CHF


Historical time series

Historical time series

from 150 CHF




from 625 CHF


Plug-In (DLL) & Web Service (API)

With the Meteonorm plug-in (DLL) you can integrate the whole Meteonorm data base into your software application. With the Meteonorm Webservice (API) you can integrate meteonorm datasets online into websites or simulation software.

Web service (API)

Web service (API)


Plug-In (DLL)

Plug-In (DLL)


Extended services

A solar cadastre provides orientation, angle, irradiation, and the potential of solar production for each rooftop. The irradiation data comes from Meteonorm. Our expertises are tailor-made assessments of solar radiation for your location and for your special preferences.



1200 CHF




Price on request


Solar Cadastre

Solar Cadastre

Price on request



Meteotest - an experienced company behind the product Meteonorm.


Meteotest is a private, independent Swiss company. Meteotest was founded in 1981 and by today is one of the oldest service providers for weather, climate and environmental data in Europe.

Meteotest is a leading company in weather, climate, environment and IT science. We are characterised by a high customer focus, expertise and technical competence. Our team consists of 35 scientists, engineers and computer scientists. We process orders from private and public companies and institutions in Switzerland and abroad.

Meteotest is an agile company: We develop our products and services along current trends and issues. Where we see a corresponding market potential, we grow organically.

Meteotest is an SME owned by its employees. We are an attractive employer – a high level of commitment on the part of all employees forms the basis for a trustful cooperation. Profits are invested in further developments and shared with employees and shareholders.