How accurate is mobiletide?
mobiletide is synchronised to the moon’s daily cycle of 24hrs 50mins and 28 seconds. On average across a Lunar day (month) this is how much the tide moves on by each day. Working to an average tidal progression means that mobiletide will remain accurate over a longer period of time, so in 5 days, 5 months or 5 years mobiletide will still be showing the correct tide. It does mean that throughout a month mobiletide will fluctuate in and out, however it will remain within 0-30mins for the majority of the time. There are other influences on sea levels that affect exact tide times and these should be taken into account: Strong on / off shore winds Changing volume of river flows Atmospheric pressure Please note that due to the variable nature of tides mobiletide is only intended as a guide to tide times and therefore should not be used for navigational purposes.
