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Korea Weather

nomadamas/k-skill
2.1k installs5.3k stars
Summary

Pulls short-term weather forecasts from Korea's Meteorological Administration API without requiring you to register for your own API key. It proxies requests through a hosted server at k-skill-proxy.nomadamas.org by default, though you can point it at your own instance if needed. Works with either grid coordinates or lat/lon, and summarizes the essentials like temperature, precipitation, humidity, and wind speed. The proxy auto-selects the latest forecast time in KST if you don't specify one. Useful if you're building something that needs Korean weather data and don't want to deal with public data portal registration or exposing API keys in client code.

Install to Claude Code

npx -y skills add nomadamas/k-skill --skill korea-weather --agent claude-code

Installs into .claude/skills of the current project.

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Files
SKILL.mdView on GitHub

Korea Weather

What this skill does

기상청 단기예보 조회서비스를 k-skill-proxy 경유로 조회해서 한국 날씨를 요약한다. 사용자는 개인 OpenAPI key를 직접 발급할 필요가 없고, proxy 서버에만 KMA_OPEN_API_KEY 를 둔다.

When to use

  • "서울 시청 근처 지금 날씨 어때?"
  • "부산 날씨 알려줘"
  • "위도/경도 기준으로 한국 단기예보 보고 싶어"

Prerequisites

  • optional: jq
  • optional: KSKILL_PROXY_BASE_URL (self-host·별도 프록시를 쓸 때만 설정. 비우면 기본 hosted https://k-skill-proxy.nomadamas.org 를 사용한다.)

Required environment variables

  • 없음. KSKILL_PROXY_BASE_URL 은 선택 사항이며, 비우면 기본 hosted https://k-skill-proxy.nomadamas.org 를 사용한다.

사용자가 공공데이터포털 기상청 API key를 직접 다룰 필요는 없다. /v1/korea-weather/forecast route는 기본 hosted proxy에서 호출하고, upstream KMA_OPEN_API_KEY 는 proxy 서버에서만 관리한다. 별도 proxy를 쓰는 경우에만 KSKILL_PROXY_BASE_URL 을 설정한다.

Inputs

  • 격자 좌표: nx, ny
  • 또는 위도/경도: lat, lon
  • 선택 사항: baseDate, baseTime

baseDate / baseTime 을 생략하면 proxy 가 KST 기준 최신 단기예보 발표 시각을 자동으로 고른다.

Workflow

1. Resolve the proxy base URL

KSKILL_PROXY_BASE_URL 이 있으면 그 값을 사용하고, 없거나 비어 있으면 기본 hosted proxy https://k-skill-proxy.nomadamas.org 를 사용한다.

2. Query the short-term forecast endpoint

격자 좌표가 이미 있으면 그대로 넣고, 위도/경도만 있으면 proxy 에 그대로 넘긴다.

BASE="${KSKILL_PROXY_BASE_URL:-https://k-skill-proxy.nomadamas.org}"
curl -fsS --get "${BASE}/v1/korea-weather/forecast" \
  --data-urlencode 'lat=37.5665' \
  --data-urlencode 'lon=126.9780'

격자 좌표 예시:

BASE="${KSKILL_PROXY_BASE_URL:-https://k-skill-proxy.nomadamas.org}"
curl -fsS --get "${BASE}/v1/korea-weather/forecast" \
  --data-urlencode 'nx=60' \
  --data-urlencode 'ny=127' \
  --data-urlencode 'baseDate=20260405' \
  --data-urlencode 'baseTime=0500'

3. Summarize the response conservatively

가능하면 아래 항목만 먼저 요약한다.

  • TMP: 기온
  • SKY: 하늘상태
  • PTY: 강수형태
  • POP: 강수확률
  • PCP: 강수량
  • SNO: 적설
  • REH: 습도
  • WSD: 풍속

응답에는 조회 시점과 baseDate / baseTime 도 함께 적는다.

Done when

  • 요청 위치의 단기예보 응답이 정리되어 있다
  • 조회 시점과 예보 발표 시각이 명시되어 있다
  • upstream key가 클라이언트에 노출되지 않았다

Failure modes

  • proxy upstream key 미설정 또는 hosted/self-host route 장애
  • nx / ny 또는 lat / lon 이 불완전한 경우
  • 기상청 quota 초과 또는 upstream 장애
  • 선택한 발표 시각에 아직 예보가 준비되지 않은 경우

Notes

  • 공식 API는 nx / ny 격자를 쓰지만, proxy 는 lat / lon 도 받아 내부에서 격자로 변환한다.
  • 단기예보 category 는 TMP, SKY, PTY, POP, PCP, SNO, REH, WSD 등을 중심으로 본다.
  • proxy 운영/환경변수 설정은 docs/features/k-skill-proxy.md 를 참고한다.
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First SeenApr 16, 2026
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