> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usecroma.com/llms.txt
> Use this file to discover all available pages before exploring further.

# SIATA Weather

> Current weather at every SIATA station in the Aburrá Valley (Medellín metropolitan area): temperature, humidity, wind, pressure, an hourly 12-hour series per station, and the valley's UV index with today's hourly series. All inputs optional: an empty body returns every station; pass `latitude` + `longitude` (with optional `radius_km`, default 10) for nearby stations nearest first, or `municipality` / `station_code` to narrow. Coverage is the Medellín metro area only.



## OpenAPI

````yaml /api-reference/openapi.json post /co/siata-geoportal/weather/v1
openapi: 3.1.0
info:
  title: Croma Marketplace API
  version: 1.0.0
  description: >-
    Government-data APIs for Colombia, Peru, Mexico, and global web search.
    Croma normalizes public-sector data into structured JSON for product teams
    and AI agents.


    Every operation is a POST with a JSON body and an organization API key as a
    bearer token; every operation is an idempotent lookup and accepts an
    optional `Idempotency-Key` header. Paths carry their major version (`/v1`);
    the versioning and deprecation policy, including the `Deprecation` and
    `Sunset` headers a retiring endpoint sends, is at
    https://docs.usecroma.com/versioning. Rate limits are per organization and
    reported on every response (`RateLimit-Policy`, `X-RateLimit-*`):
    https://docs.usecroma.com/rate-limits.
  termsOfService: https://usecroma.com/en/terms
  contact:
    name: Croma support
    url: https://usecroma.com/en/support
    email: tomas@usecroma.com
servers:
  - url: https://api.croma.run
security: []
paths:
  /co/siata-geoportal/weather/v1:
    post:
      tags:
        - Colombia
        - SIATA
      summary: SIATA Weather
      description: >-
        Current weather at every SIATA station in the Aburrá Valley (Medellín
        metropolitan area): temperature, humidity, wind, pressure, an hourly
        12-hour series per station, and the valley's UV index with today's
        hourly series. All inputs optional: an empty body returns every station;
        pass `latitude` + `longitude` (with optional `radius_km`, default 10)
        for nearby stations nearest first, or `municipality` / `station_code` to
        narrow. Coverage is the Medellín metro area only.
      operationId: siata_geoportal_weather
      parameters:
        - $ref: '#/components/parameters/IdempotencyKey'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required: []
              properties:
                latitude:
                  type: number
                  minimum: -90
                  maximum: 90
                  description: >-
                    Optional latitude. With `longitude`, returns only stations
                    near that point.
                longitude:
                  type: number
                  minimum: -180
                  maximum: 180
                  description: >-
                    Optional longitude. With `latitude`, returns only stations
                    near that point.
                radius_km:
                  type: number
                  minimum: 1
                  maximum: 100
                  default: 10
                  description: >-
                    Radius in km around `latitude`/`longitude` to include
                    stations. Defaults to 10.
                municipality:
                  type: string
                  maxLength: 80
                  default: ''
                  description: >-
                    Optional municipality filter, e.g. `Medellín` or `Itagüí`.
                    Accents and case are ignored.
                station_code:
                  type: string
                  maxLength: 20
                  default: ''
                  description: >-
                    Optional station code, e.g. `520`. Returns only that
                    station.
              additionalProperties: false
            example:
              latitude: 6.2442
              longitude: -75.5812
              radius_km: 5
      responses:
        '200':
          description: Successful response
          headers:
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimit-Policy'
            Idempotency-Key:
              $ref: '#/components/headers/Idempotency-Key'
            Deprecation:
              $ref: '#/components/headers/Deprecation'
            Sunset:
              $ref: '#/components/headers/Sunset'
            X-RateLimit-Limit:
              $ref: '#/components/headers/X-RateLimit-Limit'
            X-RateLimit-Remaining:
              $ref: '#/components/headers/X-RateLimit-Remaining'
            X-RateLimit-Reset:
              $ref: '#/components/headers/X-RateLimit-Reset'
            X-Cache:
              $ref: '#/components/headers/X-Cache'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SiataGeoportalWeatherResponse'
        '400':
          description: Invalid request body
          headers:
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimit-Policy'
            Idempotency-Key:
              $ref: '#/components/headers/Idempotency-Key'
            Deprecation:
              $ref: '#/components/headers/Deprecation'
            Sunset:
              $ref: '#/components/headers/Sunset'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '401':
          description: Missing or invalid API key
          headers:
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimit-Policy'
            Idempotency-Key:
              $ref: '#/components/headers/Idempotency-Key'
            Deprecation:
              $ref: '#/components/headers/Deprecation'
            Sunset:
              $ref: '#/components/headers/Sunset'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '429':
          description: Rate limit exceeded
          headers:
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimit-Policy'
            Idempotency-Key:
              $ref: '#/components/headers/Idempotency-Key'
            Deprecation:
              $ref: '#/components/headers/Deprecation'
            Sunset:
              $ref: '#/components/headers/Sunset'
            X-RateLimit-Limit:
              $ref: '#/components/headers/X-RateLimit-Limit'
            X-RateLimit-Remaining:
              $ref: '#/components/headers/X-RateLimit-Remaining'
            X-RateLimit-Reset:
              $ref: '#/components/headers/X-RateLimit-Reset'
            Retry-After:
              $ref: '#/components/headers/Retry-After'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '500':
          description: Internal error
          headers:
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimit-Policy'
            Idempotency-Key:
              $ref: '#/components/headers/Idempotency-Key'
            Deprecation:
              $ref: '#/components/headers/Deprecation'
            Sunset:
              $ref: '#/components/headers/Sunset'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '502':
          description: Upstream source returned an error
          headers:
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimit-Policy'
            Idempotency-Key:
              $ref: '#/components/headers/Idempotency-Key'
            Deprecation:
              $ref: '#/components/headers/Deprecation'
            Sunset:
              $ref: '#/components/headers/Sunset'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
      security:
        - bearerAuth: []
      externalDocs:
        description: Interactive documentation and examples
        url: https://docs.usecroma.com/guides/colombia/siata-geoportal
components:
  parameters:
    IdempotencyKey:
      name: Idempotency-Key
      in: header
      required: false
      description: >-
        Optional client-chosen key for this request (any string up to 255
        characters, e.g. a UUID). Every Croma operation is an idempotent lookup:
        repeating a request with the same body returns the same result and
        creates nothing, so retrying after a timeout or network failure is
        always safe. The key is echoed back in the `Idempotency-Key` response
        header so you can correlate a retry with its first attempt. Each attempt
        that reaches the API counts against the rate limit.
      schema:
        type: string
        maxLength: 255
        example: 0f8e9a42-6b7c-4d1e-9a3f-2c5d7e8f9a0b
  headers:
    X-Request-Id:
      description: Unique id for the request (req_…). Include it in support reports.
      schema:
        type: string
    RateLimit-Policy:
      description: >-
        Quota policy for this endpoint as an IETF RateLimit-Policy structured
        field, e.g. `"default";q=100;w=86400` (100 requests per 86400-second
        window per organization). Endpoints with an extra hourly ceiling list
        both policies, e.g. `"webSearch";q=10;w=3600, "default";q=100;w=86400`.
        Present on every response, including 401 and 429.
      schema:
        type: string
        example: '"default";q=100;w=86400'
    Idempotency-Key:
      description: >-
        The `Idempotency-Key` the request carried, echoed back unchanged. Absent
        when the request sent none.
      schema:
        type: string
    Deprecation:
      description: >-
        Present only on an endpoint version scheduled for removal: the date the
        deprecation took effect (RFC 9745). A `Sunset` header and a `Link` with
        `rel="successor-version"` accompany it. Policy:
        https://docs.usecroma.com/versioning
      schema:
        type: string
        example: '@1767225600'
    Sunset:
      description: >-
        Present only on an endpoint version scheduled for removal: the date
        after which it answers 410 (RFC 8594). Announced in the changelog at
        least 90 days ahead.
      schema:
        type: string
        format: date-time
        example: Wed, 01 Apr 2026 00:00:00 GMT
    X-RateLimit-Limit:
      description: Requests allowed in the current window.
      schema:
        type: integer
    X-RateLimit-Remaining:
      description: Requests left before you are throttled.
      schema:
        type: integer
    X-RateLimit-Reset:
      description: ISO 8601 timestamp when the window resets.
      schema:
        type: string
        format: date-time
    X-Cache:
      description: HIT or MISS. Cached hits still count against your quota.
      schema:
        type: string
        enum:
          - HIT
          - MISS
    Retry-After:
      description: Seconds to wait before retrying.
      schema:
        type: integer
  schemas:
    SiataGeoportalWeatherResponse:
      type: object
      required:
        - data
      properties:
        data:
          $ref: '#/components/schemas/SiataGeoportalWeatherData'
    ApiError:
      type: object
      required:
        - error
      properties:
        error:
          type: object
          required:
            - type
            - code
            - message
          properties:
            type:
              type: string
              description: >-
                Broad category: invalid_request_error, authentication_error,
                not_found_error, rate_limit_error, upstream_error, api_error.
            code:
              type: string
              description: Machine-readable specific code.
            message:
              type: string
              description: Human-readable explanation, safe to surface in UI.
            param:
              type: string
              description: Field that triggered the error. Present on validation errors.
            details:
              type: object
              description: Free-form structured detail.
    SiataGeoportalWeatherData:
      type: object
      properties:
        stations:
          type: array
          items:
            type: object
            properties:
              station_code:
                anyOf:
                  - type: string
                  - type: 'null'
              station:
                type: string
              municipality:
                anyOf:
                  - type: string
                  - type: 'null'
              latitude:
                anyOf:
                  - type: number
                  - type: 'null'
              longitude:
                anyOf:
                  - type: number
                  - type: 'null'
              updated_at:
                anyOf:
                  - type: string
                  - type: 'null'
                description: ISO timestamp of the station's last update at the source.
              distance_km:
                anyOf:
                  - type: number
                  - type: 'null'
                description: >-
                  Great-circle distance in km from the query point; null when no
                  location filter was applied.
              temperature_c:
                anyOf:
                  - type: number
                  - type: 'null'
              humidity_pct:
                anyOf:
                  - type: number
                  - type: 'null'
              wind_speed_ms:
                anyOf:
                  - type: number
                  - type: 'null'
                description: Wind speed in m/s.
              wind_direction_deg:
                anyOf:
                  - type: number
                  - type: 'null'
              wind_direction_cardinal:
                anyOf:
                  - type: string
                  - type: 'null'
              pressure_hpa:
                anyOf:
                  - type: number
                  - type: 'null'
              series_12h:
                type: array
                items:
                  type: object
                  properties:
                    at:
                      type: string
                    temperature_c:
                      anyOf:
                        - type: number
                        - type: 'null'
                    humidity_pct:
                      anyOf:
                        - type: number
                        - type: 'null'
                  required:
                    - at
                    - temperature_c
                    - humidity_pct
                description: >-
                  Hourly temperature and humidity over the last 12 hours, oldest
                  first.
            required:
              - station_code
              - station
              - municipality
              - latitude
              - longitude
              - updated_at
              - distance_km
              - temperature_c
              - humidity_pct
              - wind_speed_ms
              - wind_direction_deg
              - wind_direction_cardinal
              - pressure_hpa
              - series_12h
        uv:
          anyOf:
            - type: object
              properties:
                station_code:
                  anyOf:
                    - type: string
                    - type: 'null'
                station:
                  type: string
                latitude:
                  anyOf:
                    - type: number
                    - type: 'null'
                longitude:
                  anyOf:
                    - type: number
                    - type: 'null'
                index:
                  anyOf:
                    - type: number
                    - type: 'null'
                  description: UV index.
                category:
                  anyOf:
                    - type: string
                    - type: 'null'
                  description: The source's UV category, e.g. `Bajo`, `Moderado`, `Alto`.
                temperature_c:
                  anyOf:
                    - type: number
                    - type: 'null'
                measured_at:
                  anyOf:
                    - type: string
                    - type: 'null'
                series:
                  type: array
                  items:
                    type: object
                    properties:
                      at:
                        type: string
                      index:
                        anyOf:
                          - type: number
                          - type: 'null'
                    required:
                      - at
                      - index
                  description: Hourly UV index today, oldest first.
              required:
                - station_code
                - station
                - latitude
                - longitude
                - index
                - category
                - temperature_c
                - measured_at
                - series
            - type: 'null'
          description: The valley's UV reading; null when the sensor has not reported.
      required:
        - stations
        - uv
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Use Authorization: Bearer YOUR_API_KEY'

````