In light winds and a strong tide the jib might not have the power to carry you against the tide. In this situation, leave the mainsail up and approach from upwind. Lose speed by gradually lowering the main. Take care to sheet the main in a little to clear the shrouds (if fitted).
If the boat is pointing into the wind, attach (or lower) the rudder and hoist the sails while moored. Hoist the mainsail first to keep the boat pointing