At 18:27 water level is -0.26m and it will keep falling by 0.02m until the low tide at 19:28
The low tide with -0.28m is 50% of the lowest astronomical tide (-0.55m)
At 18:27 water level is -0.26m and it will keep falling by 0.02m until the low tide at 19:28
The low tide with -0.28m is 50% of the lowest astronomical tide (-0.55m)