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Mont Saint Michel Tidal Calendar

Can anyone translate the tidal info for March 9 and 10th for me? I have not been able to find one in English. It looks like on the 9th, the tide comes in at 8:46am and goes back out at 9:02? And on the 10th, it comes in at 9:15am and goes out at 9:30pm. I have no idea if I'm reading that right. Please help! Thanks :)

https://www.ot-montsaintmichel.com/FCKeditor/UserFiles/Marees/HORAIRE-DES-MAREES-2019-Pdf.pdf

Posted by
755 posts

In order of flow and am/pm:

March 9: low tide 3:24 am, then high tide 8:46 am; low tide 3:41 pm, then high tide 9:02 pm

March 10: low tide 3:52 am, then high tide 9:15 am; low tide 4:09 pm, then high tide 9:30 pm

Hope this helps!

Posted by
119 posts

Hi,
We will be there on July 24th. For some reason that day is missing some details. Can someone please help determine the schedule for that day? It also says to arrive 2 hours before high tide. Any reason?

Thanks for the help.

Posted by
755 posts

The missing high tide for July 24 actually happened at 11:53 pm on July 23

So the schedule is July 23 high tide 11:53 pm; then July 24 low tide 6:43 am; high tide 12:16 pm: low tide 6:56 pm

Not sure about the 2 hour advance. Is it just on July 24, or a regular policy? But I’m sure someone on the forum will know!

Posted by
2088 posts

First: Why do you think needing the tidal calender?

However: My idea is that the tide table applies for those who want to walk from the main land to Le Mont-Saint-Michel THROUGH the bay, so over land and not over the new walkway which also is in use by the free ‘Passeur” shuttle bus. The walkway will only be flooded several hours a year marked with red on the tide table and the island will obviously not accessible.

In case you want to walk through the bay you have to know about the tidle movement as opcoming water can take you by surprise and for that reason doing this without a guide is very dangerous. I think the two hours is necessary to arrive before the water comes up as parts of the bay can already start to flood in an early stage, but have to say that is my idea and not 100% sure about it. But know that even if land is flooded a few centimeter it remains dangerous as deep pits are not visible anymore, you will risk braking a leg if you step into one or you can get stuck in the mud with even the risk of drowning. Some pits are covered with vegetation, so not visible and dangerous anyway, so again always use a guide in this case.

You don’t have to think about this using the walkway like the majority of the visitors do.

Posted by
755 posts

Ryan, regarding the two hours before high tide...when the tidal coefficient (difference between height of low and high tide) is 90 or higher, the tidal bore phenomenon (mascaret) happens at the entrance to several rivers and the bay of Mont St Michel. Unfortunately the coefficient is well below 90 on your dates.

However, Elizabeth, if you’re still checking in...the coefficient on your dates is 88 so you will probably see a small wave. Perhaps you already knew about the tidal bore and that is why you wanted the clarification on the tides? Your chart on your link shows when and where to see the mascaret.

Google mascaret and Mont Saint Michel to see videos of kayakers riding the tidal wave up one of the rivers.

Posted by
119 posts

Thank you for the clarification. I'm curious what people prefer...MSM at low tide or high tide?

Posted by
15 posts

Thank you all for responding! This helps! I'm a photographer so I didn't want to miss the different tide levels. Barbara, I had not heard of the tidal bore. Thank you for the info! Does it look like that will be visible on March 10th? I'm guessing that is something you'd mainly want to watch from shore.

Posted by
1229 posts

While I missed the extreme tides the two times I visited MSM, the most impressive tidal bores occur in North America in the Bay of Fundy. Google or go to Truro, Nova Scotia tidal bore to see some impressive waves.

That being said, I think the tidal flats around MSM are very impressive with or without the bore. It would be nice to see the two different extremes there.