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AviationWeather

NOAA METARs, TAFs, and PIREPs in machine-readable JSON

🌦 WeatherHEALTHYchecked 11h ago
AUTH NONECORS ✗AGENT ✓HTTPS ✓COMMERCIAL ✓

AviationWeather.gov is NOAA/NWS's official feed of aviation weather: METAR observations, TAF forecasts, and pilot reports. Request a station's latest METAR as JSON with a plain GET and no key. Being US Government data, it is public domain. Note: no CORS header is sent.

64HOW IT'S SCORED ⓘ
Docs ↗
Status badge · for your READMEshipapis health badge: 64 · healthy
Uptime history
93.1%90 days
91.7%30 days
450P50 · ms
4734P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 42 ms, slowest 3687 ms, most recent 47 ms.
Live response samplecaptured by our last successful check
GET https://aviationweather.gov/api/data/metar?ids=KJFK&format=json

[
  {
    "icaoId": "KJFK",
    "reportTime": "2026-07-05T10:00:00.000Z",
    "temp": 24.4,
    "dewp": 20.6,
    "wdir": 310,
    "wspd": 3,
    "visib": "10+",
    "rawOb": "METAR KJFK 050951Z 31003KT 10SM FEW095 BKN140 BKN250 24/21 A2993 RMK SLP134"
  }
]
Call itcurl · fetch · python
curl "https://aviationweather.gov/api/data/metar?ids=KJFK&format=json"
const res = await fetch("https://aviationweather.gov/api/data/metar?ids=KJFK&format=json");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://aviationweather.gov/api/data/metar?ids=KJFK&format=json")
print(res.json())

BROWSER CALLS BLOCKED (NO CORS/HTTPS) — USE THE CURL SNIPPET

Endpoints · 3HealthyFULL DOCS ↗
Monitored path responding — GET /metar?ids=KJFK&format=json450 mschecked 11h ago
GET/metar?ids=KJFK&format=jsonPROBED

NOAA METARs, TAFs, and PIREPs in machine-readable JSON

GET/metar?limit=5

Metar — documented GET route.

GET/metar?page=1

Metar — documented GET route.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

AviationWeather: common questions

Is AviationWeather free to use?

Yes — AviationWeather is a free weather API. Free tier: Free, no key. Commercial use is allowed on the free tier.

Does AviationWeather need an API key?

No — AviationWeather needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished (NWS requests reasonable use)).

Can I call AviationWeather from the browser?

Not directly — AviationWeather doesn't send browser-friendly CORS headers, so call it from a server or proxy instead. Copy the curl or Python snippet on this page to get started.

Is AviationWeather up right now?

As of our last scheduled check, AviationWeather is healthy with 93.1% uptime over 90 days and a 450 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.