At 18:01 water level is -0.15m and it will keep falling by 0.08m until the low tide at 19:39
The low tide with -0.23m is 30% of the lowest astronomical tide (-0.75m)
At 18:01 water level is -0.15m and it will keep falling by 0.08m until the low tide at 19:39
The low tide with -0.23m is 30% of the lowest astronomical tide (-0.75m)