diff --git a/homeassistant/components/aemet/weather.py b/homeassistant/components/aemet/weather.py
index cf23d6f3643684..310c681d4b8742 100644
--- a/homeassistant/components/aemet/weather.py
+++ b/homeassistant/components/aemet/weather.py
@@ -1,7 +1,12 @@
 """Support for the AEMET OpenData service."""
 from homeassistant.components.weather import WeatherEntity
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import TEMP_CELSIUS
+from homeassistant.const import (
+    LENGTH_MILLIMETERS,
+    PRESSURE_HPA,
+    SPEED_METERS_PER_SECOND,
+    TEMP_CELSIUS,
+)
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
@@ -48,6 +53,9 @@ class AemetWeather(CoordinatorEntity, WeatherEntity):
 
     _attr_attribution = ATTRIBUTION
     _attr_temperature_unit = TEMP_CELSIUS
+    _attr_pressure_unit = PRESSURE_HPA
+    _attr_wind_speed_unit = SPEED_METERS_PER_SECOND
+    _attr_precipitation_unit = LENGTH_MILLIMETERS
 
     def __init__(
         self,
diff --git a/tests/components/aemet/test_weather.py b/tests/components/aemet/test_weather.py
index 43acf4c1c8731c..f6bdbf1d4bf163 100644
--- a/tests/components/aemet/test_weather.py
+++ b/tests/components/aemet/test_weather.py
@@ -21,7 +21,7 @@
     ATTR_WEATHER_WIND_BEARING,
     ATTR_WEATHER_WIND_SPEED,
 )
-from homeassistant.const import ATTR_ATTRIBUTION
+from homeassistant.const import ATTR_ATTRIBUTION, PRESSURE_HPA
 import homeassistant.util.dt as dt_util
 
 from .util import async_init_integration
@@ -30,6 +30,8 @@
 async def test_aemet_weather(hass):
     """Test states of the weather."""
 
+    hass.config.units.pressure_unit = PRESSURE_HPA
+
     now = dt_util.parse_datetime("2021-01-09 12:00:00+00:00")
     with patch("homeassistant.util.dt.now", return_value=now), patch(
         "homeassistant.util.dt.utcnow", return_value=now