The tidal range in the Bay of Fundy is about 16 metres (52 ft); the average tidal range worldwide is only one metre (3.3 ft). Some tides are higher than others, depending on the position of the moon, the sun, and atmospheric conditions.[3] Tides are semidiurnal, meaning they have two highs and two lows each day,[3] with about six hours and 13 minutes between each high and low tide.[3]