diff --git a/custom_components/weatherlink/sensor.py b/custom_components/weatherlink/sensor.py
index 6fe0aa0..c3f70ec 100644
--- a/custom_components/weatherlink/sensor.py
+++ b/custom_components/weatherlink/sensor.py
@@ -606,6 +606,7 @@ class WLSensorDescription(SensorEntityDescription):
         key="Hum",
         tag=DataKey.HUM,
         device_class=SensorDeviceClass.HUMIDITY,
+        native_unit_of_measurement=PERCENTAGE,
         suggested_display_precision=1,
         state_class=SensorStateClass.MEASUREMENT,
         exclude_api_ver=(ApiVersion.API_V1,),