Morning All

I use "The Fishing Almanac" as a gide to tides and times. Looking at next weeks tides there is some data I cannot understand.

the setting for Fremantle Has the following tides for Monday 9th Feb

06:41        0.25m/0.8ft     L

14:03       0.52m/1.71ft    H

14:31      0.52m,/1.71ft    L

22:51     0.9m/2.95ft       H

How can you have the high and low tides in the middle of the day at the same hieght and 28 minute apart? Is it high tide or low tide? Since the low tide listed at 06:41 is only 0.25m and the high tide at 22:51 is 0.9m what are the figures around 2 in the afternoon?