openapi: 3.1.0
info:
  title: OpenWeatherMap Accumulated Parameters Solar Irradiance API
  version: 2.5.0
  description: Returns accumulated temperature and accumulated precipitation totals over a user-specified historical time window. Targeted at agricultural and energy-sector applications. Available on Professional and Expert plans.
  contact:
    name: OpenWeather
    url: https://openweathermap.org/api/accumulated-parameters
  license:
    name: Creative Commons Attribution-ShareAlike 4.0 International
    url: https://creativecommons.org/licenses/by-sa/4.0/
servers:
- url: https://history.openweathermap.org/data/2.5/history
  description: Accumulated Parameters API base URL
security:
- appid: []
tags:
- name: Solar Irradiance
  description: Solar irradiance values for clear and cloudy sky models.
paths:
  /solar/interval_data:
    get:
      operationId: getSolarIrradianceIntervalData
      summary: Solar Irradiance Interval Data
      description: Returns clear-sky and cloudy-sky GHI, DNI, and DHI irradiance values at 15-minute, hourly, or daily granularity for the supplied coordinates and date.
      tags:
      - Solar Irradiance
      parameters:
      - $ref: '#/components/parameters/Lat'
      - $ref: '#/components/parameters/Lon'
      - name: date
        in: query
        required: true
        description: Date in YYYY-MM-DD format. Available from 1979-01-01 up to plus 15 days.
        schema:
          type: string
          format: date
      - name: interval
        in: query
        required: false
        description: Time resolution.
        schema:
          type: string
          enum:
          - 15m
          - 1h
          - 1d
      - name: tz
        in: query
        required: false
        description: Timezone in +-HH:MM format.
        schema:
          type: string
      - $ref: '#/components/parameters/Appid'
      responses:
        '200':
          description: Solar irradiance interval data response.
        '400':
          description: Invalid request parameters.
        '401':
          description: Unauthorized.
        '429':
          description: Too many requests.
components:
  parameters:
    Lon:
      name: lon
      in: query
      required: true
      description: Longitude in decimal degrees, range -180 to 180.
      schema:
        type: number
        format: float
    Lat:
      name: lat
      in: query
      required: true
      description: Latitude in decimal degrees, range -90 to 90.
      schema:
        type: number
        format: float
    Appid:
      name: appid
      in: query
      required: true
      description: OpenWeather API key.
      schema:
        type: string
  securitySchemes:
    appid:
      type: apiKey
      in: query
      name: appid