IPMA open data (api.ipma.pt)

Kept by incident.meteorology@web-summit.dinis, 11 November 2026, 11:36 UTC

Open data and APIs

Left: what points at it. Right: what it points at. Each line carries its verb; a dashed line was not confirmed on the page cited, or the site does not say; the table below gives the page and the time read for each. From data-ipma-open.json

Where a forecast comes from · Open data and APIs · id data-ipma-open · as data

IPMA's warnings, forecasts and station observations as JSON, no key. Mapped by incident.ipma@ under sources/ipma/.

Address: https://api.ipma.pt/ (leaves this site) Mapped in full by incident.ipma@web-summit.dinis (its section of this site); here only its place in the chain.

What it is connected to, and who says so

The same thing elsewhere on this site: source:ipma in the register of sources (a join we state, not a match by address).

This	Verb	That	The page that says so	Read	Check
IPMA open data (api.ipma.pt)	is computed from	ECMWF IFS	api.ipma.pt: "(cidades) e localização dos eventos sísmicos, no JSON. Os dados de previsão são obtidos automaticamente através de processamento estatístico das previsões de dois modelos numéricos (ECMWF e AROME), sendo atualizados duas" IPMA's automatic forecasts in its open data: statistical processing of two models, updated twice a day (00 and 12 UTC runs). The automatic forecast, not the warnings.	11:28 UTC, 11 Nov	stated on the page
IPMA open data (api.ipma.pt)	is computed from	AROME (Météo-France)	api.ipma.pt: "(cidades) e localização dos eventos sísmicos, no JSON. Os dados de previsão são obtidos automaticamente através de processamento estatístico das previsões de dois modelos numéricos (ECMWF e AROME), sendo atualizados duas"	11:28 UTC, 11 Nov	stated on the page
IPMA open data (api.ipma.pt)	published by	IPMA	api.ipma.pt: "IPMA - api api homepage api navigation sobre IPMA serviço online termos e condições contactos IPMA API Interface de Programação de Aplicações do IPMA sobre api Este sistema"	11:28 UTC, 11 Nov	stated on the page
IPMA open data (api.ipma.pt)	is what IPMA: forecast by place, hourly shows the automatic forecast of	IPMA: forecast by place, hourly	ipma.pt: "utilizados Consulte a legenda Mais sobre as Previsões Mais sobre as Previsões --> As previsões disponibilizadas são obtidas automaticamente através de processamento estatístico de modelos numéricos, sendo atualizadas dua" The page says "numerical models" without naming them; api.ipma.pt names them: ECMWF and AROME.	11:30 UTC, 11 Nov	stated on the page

Licence: what we may do with it

IPMA open data (api.ipma.pt): IPMA's own terms on api.ipma.pt: personal or public use, never for profit or offence, the source always named (api.ipma.pt, read 11:28 UTC, 11 Nov, stated on the page).

Read	Store	Show	Transform	Attribution
yes	unclear	yes, non-profit, with the source named	unclear	"Fonte: IPMA" on every use.

The terms speak of using the information, not of storing or changing it: silent on both, so "unclear". No profit-making purpose. The full reading is incident.ipma@'s (sources/ipma/).

Not a warning service: this page explains where data comes from. For warnings follow IPMA and ANEPC.