diff --git a/homeassistant/components/daikin/climate.py b/homeassistant/components/daikin/climate.py
index e5ddf4c6a38c17..03b00418fb5f30 100644
--- a/homeassistant/components/daikin/climate.py
+++ b/homeassistant/components/daikin/climate.py
@@ -115,7 +115,7 @@ def _zone_temperature_lists(device: Appliance) -> tuple[list[str], list[str]]:
     try:
         heating = device.represent(DAIKIN_ZONE_TEMP_HEAT)[1]
         cooling = device.represent(DAIKIN_ZONE_TEMP_COOL)[1]
-    except AttributeError:
+    except AttributeError, KeyError:
         return ([], [])
     return (list(heating or []), list(cooling or []))
 
diff --git a/tests/components/daikin/test_zone_climate.py b/tests/components/daikin/test_zone_climate.py
index 168d0bd5f5b1f2..9ed06d4d8e2bd2 100644
--- a/tests/components/daikin/test_zone_climate.py
+++ b/tests/components/daikin/test_zone_climate.py
@@ -112,6 +112,27 @@ async def test_setup_entry_skips_zone_climates_without_support(
     assert _zone_entity_id(entity_registry, zone_device, 0) is None
 
 
+async def test_setup_entry_handles_missing_zone_temperature_key(
+    hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
+    zone_device: ZoneDevice,
+) -> None:
+    """Missing zone temperature keys do not break climate setup."""
+    configure_zone_device(zone_device, zones=[["Living", "1", 22]])
+    zone_device.values.pop("lztemp_h")
+
+    await _async_setup_daikin(hass, zone_device)
+
+    assert _zone_entity_id(entity_registry, zone_device, 0) is None
+    main_entity_id = entity_registry.async_get_entity_id(
+        CLIMATE_DOMAIN,
+        DOMAIN,
+        zone_device.mac,
+    )
+    assert main_entity_id is not None
+    assert hass.states.get(main_entity_id) is not None
+
+
 @pytest.mark.parametrize(
     ("mode", "expected_zone_key"),
     [("hot", "lztemp_h"), ("cool", "lztemp_c")],