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Aurora Viewing Score

GET /mashup/aurora/score

Get an aurora borealis viewing score for any location, combining real-time space weather data (Kp index, solar wind) with local weather conditions (cloud cover, light pollution) and geographic latitude. Returns a composite score from 0-100 indicating how likely you are to see the Northern Lights tonight. Ideal for aurora alert apps, tourism platforms in Nordic regions, photography planning tools, and travel apps that help visitors time their trips to see the aurora.

Parameters

lat optional

Latitude

lon optional

Longitude

city optional

City name (alternative to lat/lon)

Example Requests

Basic usage
curl "https://nordapi.ee/api/v1/mashup/aurora/score?city=tallinn"
Aurora score for Tallinn
curl "https://nordapi.ee/api/v1/mashup/aurora/score?city=tallinn"
Aurora score for Oslo
curl "https://nordapi.ee/api/v1/mashup/aurora/score?city=oslo"
Aurora score for Reykjavik
curl "https://nordapi.ee/api/v1/mashup/aurora/score?city=reykjavik"
Aurora score for Tromso by coordinates
curl "https://nordapi.ee/api/v1/mashup/aurora/score?lat=69.65&lon=18.96"

Live Response 

{
  "current_conditions": {
    "cloud_cover_pct": 100,
    "is_dark": false,
    "kp_index": 0.0,
    "temperature_c": 6.2
  },
  "location": {
    "latitude": 59.437,
    "longitude": 24.7536
  },
  "scores": {
    "cloud_cover": 0.5,
    "darkness": 5.0,
    "kp_activity": 1.0,
    "latitude": 6.0,
    "overall": 2.4
  },
  "success": true,
  "sun": {
    "astronomical_twilight_begin": "2026-04-05T00:53:26+00:00",
    "astronomical_twilight_end": "2026-04-05T19:53:57+00:00",
    "civil_twilight_begin": "2026-04-05T02:51:59+00:00",
    "civil_twilight_end": "2026-04-05T17:55:24+00:00",
    "day_length": 49322,
    "nautical_twilight_begin": "2026-04-05T01:57:54+00:00",
    "nautical_twilight_end": "2026-04-05T18:49:28+00:00",
    "solar_noon": "2026-04-05T10:23:41+00:00",
    "sunrise": "2026-04-05T03:32:40+00:00",
    "sunset": "2026-04-05T17:14:42+00:00"
  },
  "timezone": {
    "date": "04/05/2026",
    "datetime": "2026-04-05T21:19:37.5437475",
    "day_of_week": "Sunday",
    "time": "21:19",
    "timezone": "Europe/Tallinn",
    "utc_offset": null
  },
  "tips": [
    "Kp index is low (0.0). Aurora activity is weak.",
    "Cloud cover is 100%. Clear skies are needed for viewing."
  ],
  "verdict": "Low chance. Conditions are unfavorable."
}
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