diff --git a/homeassistant/components/climate/__init__.py b/homeassistant/components/climate/__init__.py
index af64b06ebe694..3ea0f887e7611 100644
--- a/homeassistant/components/climate/__init__.py
+++ b/homeassistant/components/climate/__init__.py
@@ -69,6 +69,7 @@
     FAN_TOP,
     HVAC_MODES,
     INTENT_GET_TEMPERATURE,
+    INTENT_SET_TEMPERATURE,
     PRESET_ACTIVITY,
     PRESET_AWAY,
     PRESET_BOOST,
diff --git a/homeassistant/components/climate/const.py b/homeassistant/components/climate/const.py
index 111401a225196..d347ccbbb298e 100644
--- a/homeassistant/components/climate/const.py
+++ b/homeassistant/components/climate/const.py
@@ -127,6 +127,7 @@ class HVACAction(StrEnum):
 DOMAIN = "climate"
 
 INTENT_GET_TEMPERATURE = "HassClimateGetTemperature"
+INTENT_SET_TEMPERATURE = "HassClimateSetTemperature"
 
 SERVICE_SET_AUX_HEAT = "set_aux_heat"
 SERVICE_SET_FAN_MODE = "set_fan_mode"
diff --git a/homeassistant/components/climate/intent.py b/homeassistant/components/climate/intent.py
index 9a8dfdda4ec3e..9837a326188a2 100644
--- a/homeassistant/components/climate/intent.py
+++ b/homeassistant/components/climate/intent.py
@@ -4,15 +4,24 @@
 
 import voluptuous as vol
 
+from homeassistant.const import ATTR_ENTITY_ID
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers import intent
+from homeassistant.helpers import config_validation as cv, intent
 
-from . import DOMAIN, INTENT_GET_TEMPERATURE
+from . import (
+    ATTR_TEMPERATURE,
+    DOMAIN,
+    INTENT_GET_TEMPERATURE,
+    INTENT_SET_TEMPERATURE,
+    SERVICE_SET_TEMPERATURE,
+    ClimateEntityFeature,
+)
 
 
 async def async_setup_intents(hass: HomeAssistant) -> None:
     """Set up the climate intents."""
     intent.async_register(hass, GetTemperatureIntent())
+    intent.async_register(hass, SetTemperatureIntent())
 
 
 class GetTemperatureIntent(intent.IntentHandler):
@@ -52,3 +61,84 @@ async def async_handle(self, intent_obj: intent.Intent) -> intent.IntentResponse
         response.response_type = intent.IntentResponseType.QUERY_ANSWER
         response.async_set_states(matched_states=match_result.states)
         return response
+
+
+class SetTemperatureIntent(intent.IntentHandler):
+    """Handle SetTemperature intents."""
+
+    intent_type = INTENT_SET_TEMPERATURE
+    description = "Sets the target temperature of a climate device or entity"
+    slot_schema = {
+        vol.Required("temperature"): vol.Coerce(float),
+        vol.Optional("area"): intent.non_empty_string,
+        vol.Optional("name"): intent.non_empty_string,
+        vol.Optional("floor"): intent.non_empty_string,
+        vol.Optional("preferred_area_id"): cv.string,
+        vol.Optional("preferred_floor_id"): cv.string,
+    }
+    platforms = {DOMAIN}
+
+    async def async_handle(self, intent_obj: intent.Intent) -> intent.IntentResponse:
+        """Handle the intent."""
+        hass = intent_obj.hass
+        slots = self.async_validate_slots(intent_obj.slots)
+
+        temperature: float = slots["temperature"]["value"]
+
+        name: str | None = None
+        if "name" in slots:
+            name = slots["name"]["value"]
+
+        area_name: str | None = None
+        if "area" in slots:
+            area_name = slots["area"]["value"]
+
+        floor_name: str | None = None
+        if "floor" in slots:
+            floor_name = slots["floor"]["value"]
+
+        match_constraints = intent.MatchTargetsConstraints(
+            name=name,
+            area_name=area_name,
+            floor_name=floor_name,
+            domains=[DOMAIN],
+            assistant=intent_obj.assistant,
+            features=ClimateEntityFeature.TARGET_TEMPERATURE,
+            single_target=True,
+        )
+        match_preferences = intent.MatchTargetsPreferences(
+            area_id=slots.get("preferred_area_id", {}).get("value"),
+            floor_id=slots.get("preferred_floor_id", {}).get("value"),
+        )
+        match_result = intent.async_match_targets(
+            hass, match_constraints, match_preferences
+        )
+        if not match_result.is_match:
+            raise intent.MatchFailedError(
+                result=match_result, constraints=match_constraints
+            )
+
+        assert match_result.states
+        climate_state = match_result.states[0]
+
+        await hass.services.async_call(
+            DOMAIN,
+            SERVICE_SET_TEMPERATURE,
+            service_data={ATTR_TEMPERATURE: temperature},
+            target={ATTR_ENTITY_ID: climate_state.entity_id},
+            blocking=True,
+        )
+
+        response = intent_obj.create_response()
+        response.response_type = intent.IntentResponseType.ACTION_DONE
+        response.async_set_results(
+            success_results=[
+                intent.IntentResponseTarget(
+                    type=intent.IntentResponseTargetType.ENTITY,
+                    name=climate_state.name,
+                    id=climate_state.entity_id,
+                )
+            ]
+        )
+        response.async_set_states(matched_states=[climate_state])
+        return response
diff --git a/tests/components/climate/test_intent.py b/tests/components/climate/test_intent.py
index d17f3a1747dea..00ab2f8d27846 100644
--- a/tests/components/climate/test_intent.py
+++ b/tests/components/climate/test_intent.py
@@ -1,13 +1,16 @@
 """Test climate intents."""
 
 from collections.abc import Generator
+from typing import Any
 
 import pytest
 
 from homeassistant.components import conversation
 from homeassistant.components.climate import (
+    ATTR_TEMPERATURE,
     DOMAIN,
     ClimateEntity,
+    ClimateEntityFeature,
     HVACMode,
     intent as climate_intent,
 )
@@ -15,7 +18,12 @@
 from homeassistant.config_entries import ConfigEntry, ConfigFlow
 from homeassistant.const import Platform, UnitOfTemperature
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers import area_registry as ar, entity_registry as er, intent
+from homeassistant.helpers import (
+    area_registry as ar,
+    entity_registry as er,
+    floor_registry as fr,
+    intent,
+)
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.setup import async_setup_component
 
@@ -107,6 +115,20 @@ class MockClimateEntity(ClimateEntity):
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
     _attr_hvac_mode = HVACMode.OFF
     _attr_hvac_modes = [HVACMode.OFF, HVACMode.HEAT]
+    _attr_supported_features = ClimateEntityFeature.TARGET_TEMPERATURE
+
+    async def async_set_temperature(self, **kwargs: Any) -> None:
+        """Set the thermostat temperature."""
+        value = kwargs[ATTR_TEMPERATURE]
+        self._attr_target_temperature = value
+
+
+class MockClimateEntityNoSetTemperature(ClimateEntity):
+    """Mock Climate device to use in tests."""
+
+    _attr_temperature_unit = UnitOfTemperature.CELSIUS
+    _attr_hvac_mode = HVACMode.OFF
+    _attr_hvac_modes = [HVACMode.OFF, HVACMode.HEAT]
 
 
 async def test_get_temperature(
@@ -436,3 +458,231 @@ async def test_not_exposed(
                 assistant=conversation.DOMAIN,
             )
         assert err.value.result.no_match_reason == intent.MatchFailedReason.ASSISTANT
+
+
+async def test_set_temperature(
+    hass: HomeAssistant,
+    area_registry: ar.AreaRegistry,
+    entity_registry: er.EntityRegistry,
+    floor_registry: fr.FloorRegistry,
+) -> None:
+    """Test HassClimateSetTemperature intent."""
+    assert await async_setup_component(hass, "homeassistant", {})
+    await climate_intent.async_setup_intents(hass)
+
+    climate_1 = MockClimateEntity()
+    climate_1._attr_name = "Climate 1"
+    climate_1._attr_unique_id = "1234"
+    climate_1._attr_current_temperature = 10.0
+    climate_1._attr_target_temperature = 10.0
+    entity_registry.async_get_or_create(
+        DOMAIN, "test", "1234", suggested_object_id="climate_1"
+    )
+
+    climate_2 = MockClimateEntity()
+    climate_2._attr_name = "Climate 2"
+    climate_2._attr_unique_id = "5678"
+    climate_2._attr_current_temperature = 22.0
+    climate_2._attr_target_temperature = 22.0
+    entity_registry.async_get_or_create(
+        DOMAIN, "test", "5678", suggested_object_id="climate_2"
+    )
+
+    await create_mock_platform(hass, [climate_1, climate_2])
+
+    # Add climate entities to different areas:
+    # climate_1 => living room
+    # climate_2 => bedroom
+    # nothing in office
+    living_room_area = area_registry.async_create(name="Living Room")
+    bedroom_area = area_registry.async_create(name="Bedroom")
+    office_area = area_registry.async_create(name="Office")
+
+    entity_registry.async_update_entity(
+        climate_1.entity_id, area_id=living_room_area.id
+    )
+    entity_registry.async_update_entity(climate_2.entity_id, area_id=bedroom_area.id)
+
+    # Put areas on different floors:
+    # first floor => living room and office
+    # upstairs => bedroom
+    floor_registry = fr.async_get(hass)
+    first_floor = floor_registry.async_create("First floor")
+    living_room_area = area_registry.async_update(
+        living_room_area.id, floor_id=first_floor.floor_id
+    )
+    office_area = area_registry.async_update(
+        office_area.id, floor_id=first_floor.floor_id
+    )
+
+    second_floor = floor_registry.async_create("Second floor")
+    bedroom_area = area_registry.async_update(
+        bedroom_area.id, floor_id=second_floor.floor_id
+    )
+
+    # Cannot target multiple climate devices
+    with pytest.raises(intent.MatchFailedError) as err:
+        await intent.async_handle(
+            hass,
+            "test",
+            climate_intent.INTENT_SET_TEMPERATURE,
+            {"temperature": {"value": 20}},
+            assistant=conversation.DOMAIN,
+        )
+    assert err.value.result.no_match_reason == intent.MatchFailedReason.MULTIPLE_TARGETS
+
+    # Select by area explicitly (climate_2)
+    response = await intent.async_handle(
+        hass,
+        "test",
+        climate_intent.INTENT_SET_TEMPERATURE,
+        {"area": {"value": bedroom_area.name}, "temperature": {"value": 20.1}},
+        assistant=conversation.DOMAIN,
+    )
+    assert response.response_type == intent.IntentResponseType.ACTION_DONE
+    assert len(response.matched_states) == 1
+    assert response.matched_states[0].entity_id == climate_2.entity_id
+    state = hass.states.get(climate_2.entity_id)
+    assert state.attributes[ATTR_TEMPERATURE] == 20.1
+
+    # Select by area implicitly (climate_2)
+    response = await intent.async_handle(
+        hass,
+        "test",
+        climate_intent.INTENT_SET_TEMPERATURE,
+        {
+            "preferred_area_id": {"value": bedroom_area.id},
+            "temperature": {"value": 20.2},
+        },
+        assistant=conversation.DOMAIN,
+    )
+    assert response.response_type == intent.IntentResponseType.ACTION_DONE
+    assert response.matched_states
+    assert response.matched_states[0].entity_id == climate_2.entity_id
+    state = hass.states.get(climate_2.entity_id)
+    assert state.attributes[ATTR_TEMPERATURE] == 20.2
+
+    # Select by floor explicitly (climate_2)
+    response = await intent.async_handle(
+        hass,
+        "test",
+        climate_intent.INTENT_SET_TEMPERATURE,
+        {"floor": {"value": second_floor.name}, "temperature": {"value": 20.3}},
+        assistant=conversation.DOMAIN,
+    )
+    assert response.response_type == intent.IntentResponseType.ACTION_DONE
+    assert response.matched_states
+    assert response.matched_states[0].entity_id == climate_2.entity_id
+    state = hass.states.get(climate_2.entity_id)
+    assert state.attributes[ATTR_TEMPERATURE] == 20.3
+
+    # Select by floor implicitly (climate_2)
+    response = await intent.async_handle(
+        hass,
+        "test",
+        climate_intent.INTENT_SET_TEMPERATURE,
+        {
+            "preferred_floor_id": {"value": second_floor.floor_id},
+            "temperature": {"value": 20.4},
+        },
+        assistant=conversation.DOMAIN,
+    )
+    assert response.response_type == intent.IntentResponseType.ACTION_DONE
+    assert response.matched_states
+    assert response.matched_states[0].entity_id == climate_2.entity_id
+    state = hass.states.get(climate_2.entity_id)
+    assert state.attributes[ATTR_TEMPERATURE] == 20.4
+
+    # Select by name (climate_2)
+    response = await intent.async_handle(
+        hass,
+        "test",
+        climate_intent.INTENT_SET_TEMPERATURE,
+        {"name": {"value": "Climate 2"}, "temperature": {"value": 20.5}},
+        assistant=conversation.DOMAIN,
+    )
+    assert response.response_type == intent.IntentResponseType.ACTION_DONE
+    assert len(response.matched_states) == 1
+    assert response.matched_states[0].entity_id == climate_2.entity_id
+    state = hass.states.get(climate_2.entity_id)
+    assert state.attributes[ATTR_TEMPERATURE] == 20.5
+
+    # Check area with no climate entities (explicit)
+    with pytest.raises(intent.MatchFailedError) as error:
+        response = await intent.async_handle(
+            hass,
+            "test",
+            climate_intent.INTENT_SET_TEMPERATURE,
+            {"area": {"value": office_area.name}, "temperature": {"value": 20.6}},
+            assistant=conversation.DOMAIN,
+        )
+
+    # Exception should contain details of what we tried to match
+    assert isinstance(error.value, intent.MatchFailedError)
+    assert error.value.result.no_match_reason == intent.MatchFailedReason.AREA
+    constraints = error.value.constraints
+    assert constraints.name is None
+    assert constraints.area_name == office_area.name
+    assert constraints.domains and (set(constraints.domains) == {DOMAIN})
+    assert constraints.device_classes is None
+
+    # Implicit area with no climate entities will fail with multiple targets
+    with pytest.raises(intent.MatchFailedError) as err:
+        await intent.async_handle(
+            hass,
+            "test",
+            climate_intent.INTENT_SET_TEMPERATURE,
+            {
+                "preferred_area_id": {"value": office_area.id},
+                "temperature": {"value": 20.7},
+            },
+            assistant=conversation.DOMAIN,
+        )
+    assert err.value.result.no_match_reason == intent.MatchFailedReason.MULTIPLE_TARGETS
+
+
+async def test_set_temperature_no_entities(
+    hass: HomeAssistant,
+) -> None:
+    """Test HassClimateSetTemperature intent with no climate entities."""
+    assert await async_setup_component(hass, "homeassistant", {})
+    await climate_intent.async_setup_intents(hass)
+
+    await create_mock_platform(hass, [])
+
+    with pytest.raises(intent.MatchFailedError) as err:
+        await intent.async_handle(
+            hass,
+            "test",
+            climate_intent.INTENT_SET_TEMPERATURE,
+            {"temperature": {"value": 20}},
+            assistant=conversation.DOMAIN,
+        )
+    assert err.value.result.no_match_reason == intent.MatchFailedReason.DOMAIN
+
+
+async def test_set_temperature_not_supported(hass: HomeAssistant) -> None:
+    """Test HassClimateSetTemperature intent when climate entity doesn't support required feature."""
+    assert await async_setup_component(hass, "homeassistant", {})
+    await climate_intent.async_setup_intents(hass)
+
+    climate_1 = MockClimateEntityNoSetTemperature()
+    climate_1._attr_name = "Climate 1"
+    climate_1._attr_unique_id = "1234"
+    climate_1._attr_current_temperature = 10.0
+    climate_1._attr_target_temperature = 10.0
+
+    await create_mock_platform(hass, [climate_1])
+
+    with pytest.raises(intent.MatchFailedError) as error:
+        await intent.async_handle(
+            hass,
+            "test",
+            climate_intent.INTENT_SET_TEMPERATURE,
+            {"temperature": {"value": 20.0}},
+            assistant=conversation.DOMAIN,
+        )
+
+    # Exception should contain details of what we tried to match
+    assert isinstance(error.value, intent.MatchFailedError)
+    assert error.value.result.no_match_reason == intent.MatchFailedReason.FEATURE