ipma weather platform uses the Instituto Português do Mar e Atmosfera as a source for current and forecast meteorological data.
Adding Instituto Português do Mar e Atmosfera (IPMA) to your Home Assistant instance can be done via the user interface, by using this My button:
If the above My button doesn’t work, you can also perform the following steps manually:
Browse to your Home Assistant instance.
In the sidebar click on Settings.
From the configuration menu select: Devices & Services.
In the bottom right, click on the Add Integration button.
From the list, search and select “Instituto Português do Mar e Atmosfera (IPMA)”.
Follow the instruction on screen to complete the set up.
IPMA provides both hourly (72h) and daily (10 days) forecasts, but you must choose which one will be exposed by the weather entity during initial setup of the integration.