diff --git a/src/posix/platform/openthread-core-posix-config.h b/src/posix/platform/openthread-core-posix-config.h
index 16dd0a3b3..35c13a74a 100644
--- a/src/posix/platform/openthread-core-posix-config.h
+++ b/src/posix/platform/openthread-core-posix-config.h
@@ -64,6 +64,27 @@
 #define OPENTHREAD_CONFIG_LOG_OUTPUT OPENTHREAD_CONFIG_LOG_OUTPUT_PLATFORM_DEFINED
 #endif
 
+/**
+ * @def OPENTHREAD_CONFIG_LOG_LEVEL
+ *
+ * Define the compile-time log level which is the lowest log level
+ * that can be set at run-time by `otLoggingSetLevel`.
+ *
+ */
+#ifndef OPENTHREAD_CONFIG_LOG_LEVEL
+#define OPENTHREAD_CONFIG_LOG_LEVEL OT_LOG_LEVEL_DEBG
+#endif
+
+/**
+ * @def OPENTHREAD_CONFIG_LOG_LEVEL_INIT
+ *
+ * The initial log level used when OpenThread is initialized. See
+ * `OPENTHREAD_CONFIG_LOG_LEVEL_DYNAMIC_ENABLE`.
+ */
+#ifndef OPENTHREAD_CONFIG_LOG_LEVEL_INIT
+#define OPENTHREAD_CONFIG_LOG_LEVEL_INIT OT_LOG_LEVEL_CRIT
+#endif
+
 /**
  * @def OPENTHREAD_CONFIG_LOG_LEVEL_DYNAMIC_ENABLE
  *