The normal range of the tides is up to three meters.

The proximity of the moon in relation to the earth does have an effect on the range of the tides at any given time.

The increases in the range of the tides is seen by a slightly higher than average high tide, as well as a slightly lower than average low tide.

Additionally, twice each month, around the times of the new moon and full moon, when the earth, sun, and moon are nearly in line, there is an increase in the average range of the tides.