diff --git a/homeassistant/components/zwave_js/sensor.py b/homeassistant/components/zwave_js/sensor.py
index a6d44cb62d0..d6cc9aabd49 100644
--- a/homeassistant/components/zwave_js/sensor.py
+++ b/homeassistant/components/zwave_js/sensor.py
@@ -14,7 +14,12 @@ from homeassistant.components.sensor import (
     DOMAIN as SENSOR_DOMAIN,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import DEVICE_CLASS_TEMPERATURE, TEMP_CELSIUS, TEMP_FAHRENHEIT
+from homeassistant.const import (
+    DEVICE_CLASS_HUMIDITY,
+    DEVICE_CLASS_TEMPERATURE,
+    TEMP_CELSIUS,
+    TEMP_FAHRENHEIT,
+)
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
@@ -83,11 +88,12 @@ class ZwaveSensorBase(ZWaveBaseEntity):
             if self.info.primary_value.metadata.unit == "kWh":
                 return DEVICE_CLASS_ENERGY
             return DEVICE_CLASS_POWER
-        if (
-            isinstance(self.info.primary_value.property_, str)
-            and "temperature" in self.info.primary_value.property_.lower()
-        ):
-            return DEVICE_CLASS_TEMPERATURE
+        if isinstance(self.info.primary_value.property_, str):
+            property_lower = self.info.primary_value.property_.lower()
+            if "humidity" in property_lower:
+                return DEVICE_CLASS_HUMIDITY
+            if "temperature" in property_lower:
+                return DEVICE_CLASS_TEMPERATURE
         if self.info.primary_value.metadata.unit == "W":
             return DEVICE_CLASS_POWER
         if self.info.primary_value.metadata.unit == "Lux":
diff --git a/tests/components/zwave_js/common.py b/tests/components/zwave_js/common.py
index f90a2e48ffa..0592f89902f 100644
--- a/tests/components/zwave_js/common.py
+++ b/tests/components/zwave_js/common.py
@@ -1,5 +1,6 @@
 """Provide common test tools for Z-Wave JS."""
 AIR_TEMPERATURE_SENSOR = "sensor.multisensor_6_air_temperature"
+HUMIDITY_SENSOR = "sensor.multisensor_6_humidity"
 ENERGY_SENSOR = "sensor.smart_plug_with_two_usb_ports_value_electric_consumed_2"
 POWER_SENSOR = "sensor.smart_plug_with_two_usb_ports_value_electric_consumed"
 SWITCH_ENTITY = "switch.smart_plug_with_two_usb_ports"
diff --git a/tests/components/zwave_js/test_sensor.py b/tests/components/zwave_js/test_sensor.py
index 398d831e692..7b4cd8bcce6 100644
--- a/tests/components/zwave_js/test_sensor.py
+++ b/tests/components/zwave_js/test_sensor.py
@@ -1,6 +1,7 @@
 """Test the Z-Wave JS sensor platform."""
 from homeassistant.const import (
     DEVICE_CLASS_ENERGY,
+    DEVICE_CLASS_HUMIDITY,
     DEVICE_CLASS_POWER,
     DEVICE_CLASS_TEMPERATURE,
     ENERGY_KILO_WATT_HOUR,
@@ -12,6 +13,7 @@ from homeassistant.helpers import entity_registry as er
 from .common import (
     AIR_TEMPERATURE_SENSOR,
     ENERGY_SENSOR,
+    HUMIDITY_SENSOR,
     NOTIFICATION_MOTION_SENSOR,
     POWER_SENSOR,
 )
@@ -26,6 +28,13 @@ async def test_numeric_sensor(hass, multisensor_6, integration):
     assert state.attributes["unit_of_measurement"] == TEMP_CELSIUS
     assert state.attributes["device_class"] == DEVICE_CLASS_TEMPERATURE
 
+    state = hass.states.get(HUMIDITY_SENSOR)
+
+    assert state
+    assert state.state == "65.0"
+    assert state.attributes["unit_of_measurement"] == "%"
+    assert state.attributes["device_class"] == DEVICE_CLASS_HUMIDITY
+
 
 async def test_energy_sensors(hass, hank_binary_switch, integration):
     """Test power and energy sensors."""