Next Monday and Tuesday the orbits of the Moon and the Sun will bring them both to their closest points to Earth. This alignment is likely to cause tides of between 20 and 30 per cent higher than normal and more if wind and weather are adverse.

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Next week's tides are spring tides, which are the higher tides that occur at each full moon and new moon (next week will be a new moon). They are also equinoctial tides occurring just after the autumn equinox, which are also often higher.