#climate

Solar irradiance and agroclimatology for any location on Earth — as an API over NASA POWER (Prediction Of Worldwide Energy Resources), derived from NASA satellite and reanalysis data. Get the solar resource needed to size and assess PV and CSP systems: global (GHI), direct-normal (DNI) and diffuse horizontal irradiance, clear-sky irradiance and the clearness index — either as long-term monthly climatology normals for quick site assessment, or as a daily time series for a date range (1981-present). The same call also serves meteorology — temperature, wind speed, relative humidity and precipitation — making it ideal for solar energy, agriculture, building-energy modelling and climate work. From cloudy Berlin to the Sahara, it turns a coordinate into bankable solar and climate data. A solar-resource / agroclimatology data source — distinct from PV-system energy simulation (PVGIS) and historical-weather records. Open data from NASA POWER.

api.oanor.com/solar-api

Long-term climate projections as an API — daily, downscaled output from high-resolution CMIP6 global climate models for any location on Earth, from 1950 all the way to 2050. See how temperature, precipitation, wind and humidity are projected to change under a warming climate: get the daily projection over any date range (choose your variables and climate model), or per-year aggregates — annual mean temperature and total precipitation — that reveal the warming trend at a place over the coming decades. Seven HighResMIP models are available (EC_Earth3P_HR, MPI_ESM1_2_XR, MRI_AGCM3_2_S, CMCC_CM2_VHR4 and more). From planning and agriculture to risk assessment, sustainability and climate research, it turns climate-model data into a simple coordinate-in, projection-out call. A climate-projection resource — distinct from real-time weather forecasts, historical weather observations and Köppen climate classification. Open data from Open-Meteo (CC BY 4.0), based on the CMIP6 HighResMIP ensemble.

api.oanor.com/climateprojections-api

Independent greenhouse-gas emissions data as an API — powered by Climate TRACE, the coalition (backed by Al Gore) that monitors global emissions from satellites, sensors and AI rather than self-reported figures. Get any country's emissions for a given year — CO2, methane (CH4) and nitrous oxide (N2O) in tonnes, plus CO2-equivalent over 100- and 20-year horizons — together with the country's global emissions rank and its share of total world emissions; pass several countries at once to compare them side by side. List the full set of sectors, subsectors and gases that Climate TRACE tracks (power, transportation, manufacturing, agriculture, fossil-fuel operations, waste and more). From China and the United States to any nation on Earth, with data from 2015 onward, it is ideal for climate, ESG, sustainability, policy, journalism and research applications. An independent emissions-inventory data source — distinct from electricity-grid carbon intensity, activity footprint calculators and climate classification. Open data from Climate TRACE (CC BY 4.0).

api.oanor.com/climatetrace-api

The WRI Global Power Plant Database as an API — 34,900+ power stations across 167 countries (~5,700 GW total capacity). Look up any plant by its WRI/GPPD id (e.g. WRI1000452 → Three Gorges Dam, 22,500 MW hydro); search by name, country, fuel type or capacity range; or find every power station within a radius of any coordinate (great-circle distance, optional fuel filter). Each record carries the installed capacity (MW), primary fuel (Solar, Hydro, Wind, Gas, Coal, Nuclear, …), country, latitude/longitude, commissioning year and owner. Ideal for energy dashboards, ESG/climate analytics, grid and infrastructure tools.

api.oanor.com/powerplants-api

Classify any location's climate with the Köppen-Geiger system — the standard used across geography, ecology, agriculture and architecture. Provide a location's twelve monthly mean temperatures and precipitation totals and get back its climate code (for example Cfb or BWh), the climate group and full name, a description, and a block of derived statistics (annual mean temperature, annual precipitation, warmest and coldest month, driest month, months above 10 °C, summer-precipitation share and the aridity threshold). The hemisphere is auto-detected from the temperature curve, or you can set it explicitly. A reference endpoint returns all thirty Köppen-Geiger codes with names, groups, descriptions and example cities. Every endpoint accepts input via the query string or the request body and returns lean JSON. Pure server-side computation (no third-party upstream), so responses are instant and always available. Ideal for EdTech and geography tools, AgTech and crop-suitability apps, architecture and GIS pipelines.

api.oanor.com/climate-api

Estimate CO2e emissions for everyday activities using the official DEFRA 2023 GHG conversion factors: road and rail travel (per kilometre by vehicle type, split across passengers), flights (by airport IATA pair with great-circle distance, or by distance, across cabin classes and round trips), grid electricity (by kilowatt-hour and country carbon intensity) and direct fuel combustion (by litres and fuel type). A factors endpoint exposes every emission factor, supported vehicle and fuel type, and the country grid-intensity table. Each result returns CO2e in kilograms, tonnes and grams. Every endpoint accepts input via the query string or the request body and returns lean JSON. Pure server-side compute (no third-party upstream), so responses are instant and always available. Ideal for travel and booking flows, sustainability dashboards, ESG and Scope-3 reporting, and carbon-aware product features.

api.oanor.com/carbonfootprint-api

Decades of historical weather for any location on Earth, from 1940 to the present. Pull daily records — temperature highs, lows and means, apparent temperature, precipitation, rain, snowfall, wind speed, gusts and direction — or an hourly series with temperature, humidity, precipitation, wind, pressure and cloud cover, or a period summary with mean temperature, the hottest and coldest day, total precipitation and wet-day counts. Global coverage from the ERA5 reanalysis archive via Open-Meteo, delivered as tidy JSON through a fast, reliable API. Ideal for agriculture and energy, insurance and risk, climate research, construction and travel planning.

api.oanor.com/weatherhistory-api

Real-time weather: current conditions, multi-day forecast, historical weather, marine/wave forecast, astronomy (sun/UV), air quality, geocoding and timezone.

api.oanor.com/weather-api