Tide & Current Problems
Question 1 of 10
Rule of Twelfths (per hour)
1/12
hr 1
2/12
hr 2
3/12
hr 3
3/12
hr 4
2/12
hr 5
1/12
hr 6
Rising tide: LW → HW. Apply in reverse for falling tide.
Rule of Twelfths
Height at Specific Time — Rule of Twelfths
| Time | Height | Type |
|---|---|---|
| 0612 | 0.4m | Low Water |
| 1224 | 4.8m | High Water |
Using the rule of twelfths, what is the approximate height of tide at 0812?