Redirect to a page after a few seconds

by

Though wp_redirect() doesn’t allow a delay, PHP’s header() ( which is what wp_redirect uses ) does via refresh.

This may work for you. 

<?php 
  header( "refresh:5;url=wherever.php" ); 
  echo 'You\'ll be redirected in about 5 secs. If not, click <a href="https://wordpress.stackexchange.com/questions/149730/wherever.php">here</a>.';
?>