diff --git a/homeassistant/components/unifi/sensor.py b/homeassistant/components/unifi/sensor.py
index cf10b61d0578..d06d50b286e8 100644
--- a/homeassistant/components/unifi/sensor.py
+++ b/homeassistant/components/unifi/sensor.py
@@ -642,6 +642,7 @@ ENTITY_DESCRIPTIONS: tuple[UnifiSensorEntityDescription, ...] = (
         device_class=SensorDeviceClass.TEMPERATURE,
         entity_category=EntityCategory.DIAGNOSTIC,
         native_unit_of_measurement=UnitOfTemperature.CELSIUS,
+        state_class=SensorStateClass.MEASUREMENT,
         api_handler_fn=lambda api: api.devices,
         available_fn=async_device_available_fn,
         device_info_fn=async_device_device_info_fn,
diff --git a/tests/components/unifi/snapshots/test_sensor.ambr b/tests/components/unifi/snapshots/test_sensor.ambr
index efc258d9be8a..b2e1383d5093 100644
--- a/tests/components/unifi/snapshots/test_sensor.ambr
+++ b/tests/components/unifi/snapshots/test_sensor.ambr
@@ -138,7 +138,9 @@
       None,
     ]),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
     'config_entry_id': <ANY>,
     'config_subentry_id': <ANY>,
     'device_class': None,
@@ -177,6 +179,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'temperature',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Device Temperature',
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.MEASUREMENT: 'measurement'>,
       <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTemperature.CELSIUS: '°C'>,
     }),
     'context': <ANY>,