The tide rises 1.36 metres higher on 8 September than on 29 September and falls 1.59 metres lower. The highest tides in the world occur in the Bay of Fundy in Nova Scotia, Canada. The bay is very narrow, so the tide which brings water rushing in from the ocean can rise and fall up to 20 metres a day. The Moon takes 29 and a half days to go around the Earth. Each quarter way around is called a phase and these are shown on the picture below.
Spring tides are the ones that rise and fall most.
At full and new phases of the moon the Sun and Moon pull together. So their combined pull is stronger and there are Spring tides. Neap tides are the ones that rise and fall least. At first quarter and last quarter phases of the moon the Sun and Moon do not pull together. So their combined pull is weaker and there are Neap tides.