diff --git a/esphome/components/sm300d2/sm300d2.cpp b/esphome/components/sm300d2/sm300d2.cpp
index c726faec48..365271cec9 100644
--- a/esphome/components/sm300d2/sm300d2.cpp
+++ b/esphome/components/sm300d2/sm300d2.cpp
@@ -42,7 +42,7 @@ void SM300D2Sensor::update() {
 
   this->status_clear_warning();
 
-  ESP_LOGW(TAG, "Successfully read SM300D2 data");
+  ESP_LOGD(TAG, "Successfully read SM300D2 data");
 
   const uint16_t co2 = (response[2] * 256) + response[3];
   const uint16_t formaldehyde = (response[4] * 256) + response[5];