diff --git a/homeassistant/components/netatmo/climate.py b/homeassistant/components/netatmo/climate.py
index 145735f4c95..db324cd1722 100644
--- a/homeassistant/components/netatmo/climate.py
+++ b/homeassistant/components/netatmo/climate.py
@@ -232,6 +232,7 @@ class NetatmoThermostat(NetatmoBase, ClimateEntity):
         if self._model == NA_THERM:
             self._operation_list.append(HVAC_MODE_OFF)
 
+        self._attr_max_temp = DEFAULT_MAX_TEMP
         self._attr_unique_id = f"{self._id}-{self._model}"
 
     async def async_added_to_hass(self) -> None:
@@ -446,7 +447,7 @@ class NetatmoThermostat(NetatmoBase, ClimateEntity):
         if (temp := kwargs.get(ATTR_TEMPERATURE)) is None:
             return
         await self._home_status.async_set_room_thermpoint(
-            self._id, STATE_NETATMO_MANUAL, temp
+            self._id, STATE_NETATMO_MANUAL, min(temp, DEFAULT_MAX_TEMP)
         )
 
         self.async_write_ha_state()