diff --git a/esphome/components/bang_bang/bang_bang_climate.cpp b/esphome/components/bang_bang/bang_bang_climate.cpp
index 13b0cd2a09..b34764907f 100644
--- a/esphome/components/bang_bang/bang_bang_climate.cpp
+++ b/esphome/components/bang_bang/bang_bang_climate.cpp
@@ -194,8 +194,8 @@ void BangBangClimate::dump_config() {
   ESP_LOGCONFIG(TAG, "  Supports HEAT: %s", YESNO(this->supports_heat_));
   ESP_LOGCONFIG(TAG, "  Supports COOL: %s", YESNO(this->supports_cool_));
   ESP_LOGCONFIG(TAG, "  Supports AWAY mode: %s", YESNO(this->supports_away_));
-  ESP_LOGCONFIG(TAG, "  Default Target Temperature Low: %.1f°C", this->normal_config_.default_temperature_low);
-  ESP_LOGCONFIG(TAG, "  Default Target Temperature High: %.1f°C", this->normal_config_.default_temperature_high);
+  ESP_LOGCONFIG(TAG, "  Default Target Temperature Low: %.2f°C", this->normal_config_.default_temperature_low);
+  ESP_LOGCONFIG(TAG, "  Default Target Temperature High: %.2f°C", this->normal_config_.default_temperature_high);
 }
 
 BangBangClimateTargetTempConfig::BangBangClimateTargetTempConfig() = default;