diff --git a/homeassistant/components/uptimerobot/entity.py b/homeassistant/components/uptimerobot/entity.py
index 4b4847dfc7c..b265af77535 100644
--- a/homeassistant/components/uptimerobot/entity.py
+++ b/homeassistant/components/uptimerobot/entity.py
@@ -75,4 +75,6 @@ class UptimeRobotEntity(CoordinatorEntity):
     @property
     def available(self) -> bool:
         """Returtn if entity is available."""
+        if not self.coordinator.last_update_success:
+            return False
         return self.monitor is not None