You can now use the Amazon Redshift Query Editor with Amazon Redshift clusters in the AWS GovCloud (US) Regions. You can query data in your Amazon Redshift cluster directly from your AWS Management console, using the Query Editor. The Redshift Query Editor provides an easier way for admins and end-users to run SQL queries without having to install and setup an external JDBC/ODBC client. Query results are instantly visible within the console.
Source:: Amazon AWS