diff --git a/homeassistant/components/plugwise/gateway.py b/homeassistant/components/plugwise/gateway.py
index 71ca2af9537..f540c6d0b9c 100644
--- a/homeassistant/components/plugwise/gateway.py
+++ b/homeassistant/components/plugwise/gateway.py
@@ -7,22 +7,27 @@ from typing import Any
 from plugwise.exceptions import InvalidAuthentication, PlugwiseException
 from plugwise.smile import Smile
 
-from homeassistant.components.switch import DOMAIN as SWITCH_DOMAIN
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_PORT, CONF_USERNAME
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.exceptions import ConfigEntryNotReady
-from homeassistant.helpers import device_registry as dr
+from homeassistant.helpers import device_registry as dr, entity_registry as er
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
-from homeassistant.helpers.entity_registry import RegistryEntry, async_migrate_entries
 
-from .const import DEFAULT_PORT, DEFAULT_USERNAME, DOMAIN, LOGGER, PLATFORMS_GATEWAY
+from .const import (
+    DEFAULT_PORT,
+    DEFAULT_USERNAME,
+    DOMAIN,
+    LOGGER,
+    PLATFORMS_GATEWAY,
+    Platform,
+)
 from .coordinator import PlugwiseDataUpdateCoordinator
 
 
 async def async_setup_entry_gw(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Plugwise Smiles from a config entry."""
-    await async_migrate_entries(hass, entry.entry_id, async_migrate_entity_entry)
+    await er.async_migrate_entries(hass, entry.entry_id, async_migrate_entity_entry)
 
     websession = async_get_clientsession(hass, verify_ssl=False)
     api = Smile(
@@ -57,6 +62,7 @@ async def async_setup_entry_gw(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 
     coordinator = PlugwiseDataUpdateCoordinator(hass, api)
     await coordinator.async_config_entry_first_refresh()
+    migrate_sensor_entities(hass, coordinator)
 
     hass.data.setdefault(DOMAIN, {})[entry.entry_id] = coordinator
 
@@ -85,13 +91,39 @@ async def async_unload_entry_gw(hass: HomeAssistant, entry: ConfigEntry):
 
 
 @callback
-def async_migrate_entity_entry(entry: RegistryEntry) -> dict[str, Any] | None:
+def async_migrate_entity_entry(entry: er.RegistryEntry) -> dict[str, Any] | None:
     """Migrate Plugwise entity entries.
 
     - Migrates unique ID from old relay switches to the new unique ID
     """
-    if entry.domain == SWITCH_DOMAIN and entry.unique_id.endswith("-plug"):
+    if entry.domain == Platform.SWITCH and entry.unique_id.endswith("-plug"):
         return {"new_unique_id": entry.unique_id.replace("-plug", "-relay")}
 
     # No migration needed
     return None
+
+
+def migrate_sensor_entities(
+    hass: HomeAssistant,
+    coordinator: PlugwiseDataUpdateCoordinator,
+) -> None:
+    """Migrate Sensors if needed."""
+    ent_reg = er.async_get(hass)
+
+    # Migrating opentherm_outdoor_temperature to opentherm_outdoor_air_temperature sensor
+    for device_id, device in coordinator.data.devices.items():
+        if device["class"] != "heater_central":
+            continue
+
+        old_unique_id = f"{device_id}-outdoor_temperature"
+        if entity_id := ent_reg.async_get_entity_id(
+            Platform.SENSOR, DOMAIN, old_unique_id
+        ):
+            new_unique_id = f"{device_id}-outdoor_air_temperature"
+            LOGGER.debug(
+                "Migrating entity %s from old unique ID '%s' to new unique ID '%s'",
+                entity_id,
+                old_unique_id,
+                new_unique_id,
+            )
+            ent_reg.async_update_entity(entity_id, new_unique_id=new_unique_id)
diff --git a/homeassistant/components/plugwise/manifest.json b/homeassistant/components/plugwise/manifest.json
index f0624f8c026..bcbd6cd0b48 100644
--- a/homeassistant/components/plugwise/manifest.json
+++ b/homeassistant/components/plugwise/manifest.json
@@ -2,7 +2,7 @@
   "domain": "plugwise",
   "name": "Plugwise",
   "documentation": "https://www.home-assistant.io/integrations/plugwise",
-  "requirements": ["plugwise==0.16.8"],
+  "requirements": ["plugwise==0.16.9"],
   "codeowners": ["@CoMPaTech", "@bouwew", "@brefra", "@frenck"],
   "zeroconf": ["_plugwise._tcp.local."],
   "config_flow": true,
diff --git a/homeassistant/components/plugwise/sensor.py b/homeassistant/components/plugwise/sensor.py
index 9099ee96990..87c81699d10 100644
--- a/homeassistant/components/plugwise/sensor.py
+++ b/homeassistant/components/plugwise/sensor.py
@@ -60,6 +60,13 @@ SENSORS: tuple[SensorEntityDescription, ...] = (
         device_class=SensorDeviceClass.TEMPERATURE,
         state_class=SensorStateClass.MEASUREMENT,
     ),
+    SensorEntityDescription(
+        key="outdoor_air_temperature",
+        name="Outdoor Air Temperature",
+        native_unit_of_measurement=TEMP_CELSIUS,
+        device_class=SensorDeviceClass.TEMPERATURE,
+        state_class=SensorStateClass.MEASUREMENT,
+    ),
     SensorEntityDescription(
         key="water_temperature",
         name="Water Temperature",
diff --git a/requirements_all.txt b/requirements_all.txt
index 14d62f29904..ee5fb6db55b 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1222,7 +1222,7 @@ plexauth==0.0.6
 plexwebsocket==0.0.13
 
 # homeassistant.components.plugwise
-plugwise==0.16.8
+plugwise==0.16.9
 
 # homeassistant.components.plum_lightpad
 plumlightpad==0.0.11
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 885d4dc5973..eaff1d388ac 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -816,7 +816,7 @@ plexauth==0.0.6
 plexwebsocket==0.0.13
 
 # homeassistant.components.plugwise
-plugwise==0.16.8
+plugwise==0.16.9
 
 # homeassistant.components.plum_lightpad
 plumlightpad==0.0.11
diff --git a/tests/components/plugwise/fixtures/anna_heatpump/all_data.json b/tests/components/plugwise/fixtures/anna_heatpump/all_data.json
index 4f9eda3739b..f70dbe275b7 100644
--- a/tests/components/plugwise/fixtures/anna_heatpump/all_data.json
+++ b/tests/components/plugwise/fixtures/anna_heatpump/all_data.json
@@ -25,12 +25,12 @@
         "flame_state": false
       },
       "sensors": {
-        "outdoor_temperature": 3.0,
         "water_temperature": 29.1,
         "intended_boiler_temperature": 0.0,
         "modulation_level": 52,
         "return_temperature": 25.1,
-        "water_pressure": 1.57
+        "water_pressure": 1.57,
+        "outdoor_air_temperature": 3.0
       },
       "switches": {
         "dhw_cm_switch": false
diff --git a/tests/components/plugwise/test_init.py b/tests/components/plugwise/test_init.py
index d63b81bd0d3..811018db7e2 100644
--- a/tests/components/plugwise/test_init.py
+++ b/tests/components/plugwise/test_init.py
@@ -10,11 +10,17 @@ from plugwise.exceptions import (
 import pytest
 
 from homeassistant.components.plugwise.const import DOMAIN
+from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
+from homeassistant.components.switch import DOMAIN as SWITCH_DOMAIN
 from homeassistant.config_entries import ConfigEntryState
 from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
 
 from tests.common import MockConfigEntry
 
+HEATER_ID = "1cbf783bb11e4a7c8a6843dee3a86927"  # Opentherm device_id for migration
+PLUG_ID = "cd0ddb54ef694e11ac18ed1cbce5dbbd"  # VCR device_id for migration
+
 
 async def test_load_unload_config_entry(
     hass: HomeAssistant,
@@ -60,3 +66,85 @@ async def test_config_entry_not_ready(
 
     assert len(mock_smile_anna.connect.mock_calls) == 1
     assert mock_config_entry.state is ConfigEntryState.SETUP_RETRY
+
+
+@pytest.mark.parametrize(
+    "entitydata,old_unique_id,new_unique_id",
+    [
+        (
+            {
+                "domain": SENSOR_DOMAIN,
+                "platform": DOMAIN,
+                "unique_id": f"{HEATER_ID}-outdoor_temperature",
+                "suggested_object_id": f"{HEATER_ID}-outdoor_temperature",
+                "disabled_by": None,
+            },
+            f"{HEATER_ID}-outdoor_temperature",
+            f"{HEATER_ID}-outdoor_air_temperature",
+        ),
+    ],
+)
+async def test_migrate_unique_id_temperature(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_smile_anna: MagicMock,
+    entitydata: dict,
+    old_unique_id: str,
+    new_unique_id: str,
+) -> None:
+    """Test migration of unique_id."""
+    mock_config_entry.add_to_hass(hass)
+
+    entity_registry = er.async_get(hass)
+    entity: er.RegistryEntry = entity_registry.async_get_or_create(
+        **entitydata,
+        config_entry=mock_config_entry,
+    )
+    assert entity.unique_id == old_unique_id
+    assert await hass.config_entries.async_setup(mock_config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    entity_migrated = entity_registry.async_get(entity.entity_id)
+    assert entity_migrated
+    assert entity_migrated.unique_id == new_unique_id
+
+
+@pytest.mark.parametrize(
+    "entitydata,old_unique_id,new_unique_id",
+    [
+        (
+            {
+                "domain": SWITCH_DOMAIN,
+                "platform": DOMAIN,
+                "unique_id": f"{PLUG_ID}-plug",
+                "suggested_object_id": f"{PLUG_ID}-plug",
+                "disabled_by": None,
+            },
+            f"{PLUG_ID}-plug",
+            f"{PLUG_ID}-relay",
+        ),
+    ],
+)
+async def test_migrate_unique_id_relay(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_smile_adam: MagicMock,
+    entitydata: dict,
+    old_unique_id: str,
+    new_unique_id: str,
+) -> None:
+    """Test migration of unique_id."""
+    mock_config_entry.add_to_hass(hass)
+
+    entity_registry = er.async_get(hass)
+    entity: er.RegistryEntry = entity_registry.async_get_or_create(
+        **entitydata,
+        config_entry=mock_config_entry,
+    )
+    assert entity.unique_id == old_unique_id
+    assert await hass.config_entries.async_setup(mock_config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    entity_migrated = entity_registry.async_get(entity.entity_id)
+    assert entity_migrated
+    assert entity_migrated.unique_id == new_unique_id
diff --git a/tests/components/plugwise/test_sensor.py b/tests/components/plugwise/test_sensor.py
index d5edeae3508..2b4baccc7c9 100644
--- a/tests/components/plugwise/test_sensor.py
+++ b/tests/components/plugwise/test_sensor.py
@@ -39,7 +39,7 @@ async def test_anna_as_smt_climate_sensor_entities(
     hass: HomeAssistant, mock_smile_anna: MagicMock, init_integration: MockConfigEntry
 ) -> None:
     """Test creation of climate related sensor entities."""
-    state = hass.states.get("sensor.opentherm_outdoor_temperature")
+    state = hass.states.get("sensor.opentherm_outdoor_air_temperature")
     assert state
     assert float(state.state) == 3.0
 
@@ -56,7 +56,7 @@ async def test_anna_climate_sensor_entities(
     hass: HomeAssistant, mock_smile_anna: MagicMock, init_integration: MockConfigEntry
 ) -> None:
     """Test creation of climate related sensor entities."""
-    state = hass.states.get("sensor.opentherm_outdoor_temperature")
+    state = hass.states.get("sensor.opentherm_outdoor_air_temperature")
     assert state
     assert float(state.state) == 3.0