diff --git a/esphome/components/climate/__init__.py b/esphome/components/climate/__init__.py
index 1f449ad2a4..f5b91c502c 100644
--- a/esphome/components/climate/__init__.py
+++ b/esphome/components/climate/__init__.py
@@ -8,6 +8,7 @@ from esphome.const import (
     CONF_AWAY_COMMAND_TOPIC,
     CONF_AWAY_STATE_TOPIC,
     CONF_CURRENT_HUMIDITY_STATE_TOPIC,
+    CONF_CURRENT_TEMPERATURE,
     CONF_CURRENT_TEMPERATURE_STATE_TOPIC,
     CONF_CUSTOM_FAN_MODE,
     CONF_CUSTOM_PRESET,
@@ -112,7 +113,6 @@ CLIMATE_SWING_MODES = {
 
 validate_climate_swing_mode = cv.enum(CLIMATE_SWING_MODES, upper=True)
 
-CONF_CURRENT_TEMPERATURE = "current_temperature"
 CONF_MIN_HUMIDITY = "min_humidity"
 CONF_MAX_HUMIDITY = "max_humidity"
 CONF_TARGET_HUMIDITY = "target_humidity"
diff --git a/esphome/components/haier/climate.py b/esphome/components/haier/climate.py
index 8c3649058f..6c208f6caa 100644
--- a/esphome/components/haier/climate.py
+++ b/esphome/components/haier/climate.py
@@ -3,15 +3,11 @@ import logging
 from esphome import automation
 import esphome.codegen as cg
 from esphome.components import climate, logger, uart
-from esphome.components.climate import (
-    CONF_CURRENT_TEMPERATURE,
-    ClimateMode,
-    ClimatePreset,
-    ClimateSwingMode,
-)
+from esphome.components.climate import ClimateMode, ClimatePreset, ClimateSwingMode
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_BEEPER,
+    CONF_CURRENT_TEMPERATURE,
     CONF_DISPLAY,
     CONF_ID,
     CONF_LEVEL,
diff --git a/esphome/components/template/water_heater/__init__.py b/esphome/components/template/water_heater/__init__.py
index 71f98c826a..cb5f2dbe56 100644
--- a/esphome/components/template/water_heater/__init__.py
+++ b/esphome/components/template/water_heater/__init__.py
@@ -4,6 +4,7 @@ from esphome.components import water_heater
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_AWAY,
+    CONF_CURRENT_TEMPERATURE,
     CONF_ID,
     CONF_MODE,
     CONF_OPTIMISTIC,
@@ -18,7 +19,6 @@ from esphome.types import ConfigType
 
 from .. import template_ns
 
-CONF_CURRENT_TEMPERATURE = "current_temperature"
 CONF_IS_ON = "is_on"
 
 TemplateWaterHeater = template_ns.class_(
diff --git a/esphome/const.py b/esphome/const.py
index 060e962573..88e3c33fbc 100644
--- a/esphome/const.py
+++ b/esphome/const.py
@@ -274,6 +274,7 @@ CONF_CURRENT = "current"
 CONF_CURRENT_HUMIDITY_STATE_TOPIC = "current_humidity_state_topic"
 CONF_CURRENT_OPERATION = "current_operation"
 CONF_CURRENT_RESISTOR = "current_resistor"
+CONF_CURRENT_TEMPERATURE = "current_temperature"
 CONF_CURRENT_TEMPERATURE_STATE_TOPIC = "current_temperature_state_topic"
 CONF_CUSTOM = "custom"
 CONF_CUSTOM_FAN_MODE = "custom_fan_mode"