diff --git a/homeassistant/components/bme280/const.py b/homeassistant/components/bme280/const.py
index 19dee41c855..36753ef0292 100644
--- a/homeassistant/components/bme280/const.py
+++ b/homeassistant/components/bme280/const.py
@@ -6,6 +6,7 @@ from homeassistant.const import (
     DEVICE_CLASS_PRESSURE,
     DEVICE_CLASS_TEMPERATURE,
     PERCENTAGE,
+    TEMP_CELSIUS,
 )
 
 # Common
@@ -26,7 +27,7 @@ SENSOR_TEMP = "temperature"
 SENSOR_HUMID = "humidity"
 SENSOR_PRESS = "pressure"
 SENSOR_TYPES = {
-    SENSOR_TEMP: ["Temperature", None, DEVICE_CLASS_TEMPERATURE],
+    SENSOR_TEMP: ["Temperature", TEMP_CELSIUS, DEVICE_CLASS_TEMPERATURE],
     SENSOR_HUMID: ["Humidity", PERCENTAGE, DEVICE_CLASS_HUMIDITY],
     SENSOR_PRESS: ["Pressure", "mb", DEVICE_CLASS_PRESSURE],
 }
diff --git a/homeassistant/components/bme280/sensor.py b/homeassistant/components/bme280/sensor.py
index 3b9589d0a6a..de6d6eb0729 100644
--- a/homeassistant/components/bme280/sensor.py
+++ b/homeassistant/components/bme280/sensor.py
@@ -7,18 +7,12 @@ from i2csense.bme280 import BME280 as BME280_i2c  # pylint: disable=import-error
 import smbus
 
 from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN, SensorEntity
-from homeassistant.const import (
-    CONF_MONITORED_CONDITIONS,
-    CONF_NAME,
-    CONF_SCAN_INTERVAL,
-    TEMP_FAHRENHEIT,
-)
+from homeassistant.const import CONF_MONITORED_CONDITIONS, CONF_NAME, CONF_SCAN_INTERVAL
 from homeassistant.helpers.update_coordinator import (
     CoordinatorEntity,
     DataUpdateCoordinator,
     UpdateFailed,
 )
-from homeassistant.util.temperature import celsius_to_fahrenheit
 
 from .const import (
     CONF_DELTA_TEMP,
@@ -47,7 +41,6 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
     """Set up the BME280 sensor."""
     if discovery_info is None:
         return
-    SENSOR_TYPES[SENSOR_TEMP][1] = hass.config.units.temperature_unit
     sensor_conf = discovery_info[SENSOR_DOMAIN]
     name = sensor_conf[CONF_NAME]
     scan_interval = max(sensor_conf[CONF_SCAN_INTERVAL], MIN_TIME_BETWEEN_UPDATES)
@@ -110,7 +103,6 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
         entities.append(
             BME280Sensor(
                 condition,
-                SENSOR_TYPES[condition][1],
                 name,
                 coordinator,
             )
@@ -121,11 +113,10 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
 class BME280Sensor(CoordinatorEntity, SensorEntity):
     """Implementation of the BME280 sensor."""
 
-    def __init__(self, sensor_type, temp_unit, name, coordinator):
+    def __init__(self, sensor_type, name, coordinator):
         """Initialize the sensor."""
         super().__init__(coordinator)
         self._attr_name = f"{name} {SENSOR_TYPES[sensor_type][0]}"
-        self.temp_unit = temp_unit
         self.type = sensor_type
         self._attr_native_unit_of_measurement = SENSOR_TYPES[sensor_type][1]
         self._attr_device_class = SENSOR_TYPES[sensor_type][2]
@@ -135,8 +126,6 @@ class BME280Sensor(CoordinatorEntity, SensorEntity):
         """Return the state of the sensor."""
         if self.type == SENSOR_TEMP:
             temperature = round(self.coordinator.data.temperature, 1)
-            if self.temp_unit == TEMP_FAHRENHEIT:
-                temperature = round(celsius_to_fahrenheit(temperature), 1)
             state = temperature
         elif self.type == SENSOR_HUMID:
             state = round(self.coordinator.data.humidity, 1)