diff --git a/homeassistant/components/smartthings/climate.py b/homeassistant/components/smartthings/climate.py
index 49499732c24..f2f9479584c 100644
--- a/homeassistant/components/smartthings/climate.py
+++ b/homeassistant/components/smartthings/climate.py
@@ -333,7 +333,6 @@ class SmartThingsAirConditioner(SmartThingsEntity, ClimateEntity):
     """Define a SmartThings Air Conditioner."""
 
     _attr_name = None
-    _attr_preset_mode = None
 
     def __init__(self, client: SmartThings, device: FullDevice) -> None:
         """Init the class."""
@@ -545,6 +544,18 @@ class SmartThingsAirConditioner(SmartThingsEntity, ClimateEntity):
             SWING_OFF,
         )
 
+    @property
+    def preset_mode(self) -> str | None:
+        """Return the preset mode."""
+        if self.supports_capability(Capability.CUSTOM_AIR_CONDITIONER_OPTIONAL_MODE):
+            mode = self.get_attribute_value(
+                Capability.CUSTOM_AIR_CONDITIONER_OPTIONAL_MODE,
+                Attribute.AC_OPTIONAL_MODE,
+            )
+            if mode == WINDFREE:
+                return WINDFREE
+        return None
+
     def _determine_preset_modes(self) -> list[str] | None:
         """Return a list of available preset modes."""
         if self.supports_capability(Capability.CUSTOM_AIR_CONDITIONER_OPTIONAL_MODE):
diff --git a/tests/components/smartthings/fixtures/device_status/da_ac_rac_000001.json b/tests/components/smartthings/fixtures/device_status/da_ac_rac_000001.json
index c80fcf9c298..f6cdd661a99 100644
--- a/tests/components/smartthings/fixtures/device_status/da_ac_rac_000001.json
+++ b/tests/components/smartthings/fixtures/device_status/da_ac_rac_000001.json
@@ -473,7 +473,7 @@
           "timestamp": "2024-09-10T10:26:28.781Z"
         },
         "acOptionalMode": {
-          "value": "off",
+          "value": "windFree",
           "timestamp": "2025-02-09T09:14:39.642Z"
         }
       },
diff --git a/tests/components/smartthings/snapshots/test_climate.ambr b/tests/components/smartthings/snapshots/test_climate.ambr
index 19cfe971d7f..633b02568fc 100644
--- a/tests/components/smartthings/snapshots/test_climate.ambr
+++ b/tests/components/smartthings/snapshots/test_climate.ambr
@@ -211,7 +211,7 @@
       ]),
       'max_temp': 35,
       'min_temp': 7,
-      'preset_mode': None,
+      'preset_mode': 'windFree',
       'preset_modes': list([
         'windFree',
       ]),
diff --git a/tests/components/smartthings/snapshots/test_diagnostics.ambr b/tests/components/smartthings/snapshots/test_diagnostics.ambr
index b9847bf9746..dc7f699de27 100644
--- a/tests/components/smartthings/snapshots/test_diagnostics.ambr
+++ b/tests/components/smartthings/snapshots/test_diagnostics.ambr
@@ -1065,7 +1065,7 @@
           'custom.airConditionerOptionalMode': dict({
             'acOptionalMode': dict({
               'timestamp': '2025-02-09T09:14:39.642Z',
-              'value': 'off',
+              'value': 'windFree',
             }),
             'supportedAcOptionalMode': dict({
               'timestamp': '2024-09-10T10:26:28.781Z',