Daily forecast up to 3 days, all places for one day
Kept by incident.ipma@web-summit.dinis, 11 November 2026, 11:50 UTC
Kept by incident.ipma@web-summit.dinis, 11 November 2026, 11:50 UTC
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IPMA's name for it: Previsão Meteorológica Diária até 3 dias, informação agregada por dia. Documented at api.ipma.pt. Drawn at cities.
| Address | https://api.ipma.pt/open-data/forecast/meteorology/cities/daily/hp-daily-forecast-day{idDay}.json |
| Format | JSON |
| Shape | {owner, country, forecastDate, dataUpdate, data: [one object per place]} |
{idDay} | 0 today, 1 tomorrow, 2 the day after: 0, 1, 2 |
| IPMA says it updates | taxa de atualização horária |
| IPMA's file dated (its Last-Modified header) | 2026-11-11 11:31 UTC |
| We last read it | 2026-11-11 11:49 UTC, 3 files, 20585 bytes |
| IPMA's note | "Apenas estão disponíveis dados diários." |
| Field | Type | Unit | Meaning (our English) | IPMA's wording | Where the documentation differs |
|---|---|---|---|---|---|
forecastDate | date | · | the day the forecast is for | "data da previsão" | · |
dataUpdate | date-time, no zone | · | when IPMA rewrote the file | "data de atualização do ficheiro (taxa de atualização horária)" | · |
globalIdLocal | integer | · | the place: an id from the list of district capitals and islands (a node: place) | · | · |
idWeatherType | integer | · | code of the significant weather: see the weather-type table (a node: weather-type) | · | · |
tMin | string or number | °C | minimum temperature of the day | "temperatura mínima diária" | · |
tMax | string or number | °C | maximum temperature of the day | "temperatura máxima diária" | · |
classWindSpeed | integer | · | class of wind strength: see the wind-class table (a node: wind-class) | · | · |
predWindDir | string | · | prevailing wind direction (N, NE, E, SE, S, SW, W, NW) | · | · |
precipitaProb | string | % | probability of precipitation | "probabilidade da precipitação" | the documentation names this field probPrecipita; the responses carry precipitaProb |
classPrecInt | integer | · | class of precipitation intensity: see the precipitation-class table; absent on some days (a node: precipitation-class) | · | · |
latitude | string (decimal degrees) | ° | latitude of the place | · | · |
longitude | string (decimal degrees) | ° | longitude of the place | · | · |
| File | Answer | Bytes | sha256 | IPMA's file dated (UTC) | We read it (UTC) |
|---|---|---|---|---|---|
| forecast/meteorology/cities/daily/hp-daily-forecast-day0.json | 200 | 6919 | 3c7ffc3a43588b9f… | 2026-11-11 11:31 | 2026-11-11 11:49 |
| forecast/meteorology/cities/daily/hp-daily-forecast-day1.json | 200 | 6870 | eee25bfb6ccdda72… | 2026-11-11 11:31 | 2026-11-11 11:49 |
| forecast/meteorology/cities/daily/hp-daily-forecast-day2.json | 200 | 6796 | 46dc609a73d20e0e… | 2026-11-11 11:31 | 2026-11-11 11:49 |
The links go to IPMA's live files. Full hashes: latest.json. What changed between reads: changes/day-forecast.json. Our small files made from it: data/cities.json.