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Japan Weather Forecast (JMA)
x402
Japan Weather Forecast (JMA) is a paid API for AI agents from weather.agentic-jp.com, paid per call via x402, $0.003000/call, status unknown (last checked 2026-09-14).
Returns today's conditions, near-term outlook, and a 7-day weekly forecast with temperatures and precipitation probability for a Japanese region, sourced live from the Japan Meteorological Agency (JMA).
Price / call$0.003000
Success—
StatusUnknown
How this service works
Get the Japanese (JP) weather forecast for a region — today's conditions, near-term outlook, and a 7-day weekly forecast with temperatures and precipitation probability. Sourced live from 気象庁 (Japan Meteorological Agency / JMA). Accepts a JMA office code or a Japanese/English region name.
Output
A structured response containing today's current weather conditions, a near-term outlook, and a full 7-day weekly forecast for the requested Japanese region, including daily temperatures and precipitation probability percentages, all sourced live from the Japan Meteorological Agency.
Example use cases
Example prompt
“What's the weather forecast for Tokyo this week — give me today's conditions and the 7-day outlook including temperatures and rain chances.”
Technical details
Endpoint
GEThttps://weather.agentic-jp.com/forecast/:areaWhen to prefer
Use this endpoint when you need accurate, official Japanese weather data sourced directly from the Japan Meteorological Agency. Ideal for queries about any Japanese prefecture, city, or region where JMA office codes or Japanese/English region names are available. Prefer this over generic global weather APIs when Japan-specific accuracy and official government data are required.
Side effects
- Unknown or unresolvable area name returns an error — use GET /areas to find valid JMA codes
- Invalid JMA office code returns a 400 or 404 error
- JMA upstream unavailability may cause timeouts or stale data
- Non-Japanese region names that don't map to JMA areas will fail resolution
Input
{
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"area": "130000"
}
}
}Output
{
"area": {
"code": "130000",
"name": "東京都",
"name_en": "Tokyo"
},
"daily": [
{
"area": "東京地方",
"date": "2026-06-09T11:00:00+09:00",
"pops": [
20,
20,
20,
20,
10,
10
],
"wave": "０．５メートル",
"wind": "南の風",
"temps": [
24,
24,
18,
23
],
"weather": "くもり 所により 雨",
"weather_en": "Cloudy",
"weather_code": "200"
},
{
"area": "東京地方",
"date": "2026-06-10T00:00:00+09:00",
"pops": [],
"wave": "０．５メートル",
"wind": "北の風 後 東の風",
"temps": [],
"weather": "くもり 所により 昼前 まで 雨",
"weather_en": "Cloudy",
"weather_code": "200"
},
{
"area": "東京地方",
"date": "2026-06-11T00:00:00+09:00",
"pops": [],
"wave": "０．５メートル",
"wind": "南の風",
"temps": [],
"weather": "くもり",
"weather_en": "Cloudy",
"weather_code": "200"
}
],
"weekly": [
{
"pop": null,
"date": "2026-06-10T00:00:00+09:00",
"temp_max": null,
"temp_min": null,
"weather_en": "Cloudy",
"reliability": "",
"weather_code": "200"
},
{
"pop": 40,
"date": "2026-06-11T00:00:00+09:00",
"temp_max": 26,
"temp_min": 18,
"weather_en": "Cloudy",
"reliability": "",
"weather_code": "200"
},
{
"pop": 50,
"date": "2026-06-12T00:00:00+09:00",
"temp_max": 28,
"temp_min": 19,
"weather_en": "Cloudy, occasional rain",
"reliability": "C",
"weather_code": "202"
},
{
"pop": 30,
"date": "2026-06-13T00:00:00+09:00",
"temp_max": 29,
"temp_min": 19,
"weather_en": "Mostly cloudy",
"reliability": "A",
"weather_code": "201"
},
{
"pop": 30,
"date": "2026-06-14T00:00:00+09:00",
"temp_max": 27,
"temp_min": 20,
"weather_en": "Cloudy",
"reliability": "A",
"weather_code": "200"
},
{
"pop": 50,
"date": "2026-06-15T00:00:00+09:00",
"temp_max": 21,
"temp_min": 18,
"weather_en": "Cloudy, occasional rain",
"reliability": "C",
"weather_code": "202"
},
{
"pop": 40,
"date": "2026-06-16T00:00:00+09:00",
"temp_max": 28,
"temp_min": 18,
"weather_en": "Cloudy",
"reliability": "B",
"weather_code": "200"
}
],
"summary_en": "Tokyo today: Cloudy. Temperatures 24–23°C. Max chance of rain 20%. Weekly outlook covers 7 days.",
"summary_ja": "東京都の今日の天気はくもり 所により 雨。気温は24〜23℃。降水確率は最大20%。週間予報は7日分。",
"report_datetime": "2026-06-09T11:00:00+09:00",
"publishing_office": "気象庁"
}Tags
x402
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