Access to St Marys Island - Tide Times

Access to the Island is restricted due to the tide as the causeway is covered by the sea for aproximately 4 Hours at each high tide. (Aproximately 2 hours either side if the high tide time.)

The exact amount of time depends on the height of the tides and weather conditions.

A notice is posted beside the causeway which gives more exact times when the causeway will be covered

St. Mary\’s Lighthouse and Visitor Centre have a facebook page which gives the crossing times on their timeline. - For Link Click Here

Details are given below of the high and low tide times and are to be used as a guide only. Details posted locally should be checked. The table also give the height of each of the tides.

2020-01-01	Low Tide	1:11 AM GMT	1.40 m	High Tide	7:25 AM GMT	4.21 m
	Low Tide	1:11 PM GMT	1.86 m	High Tide	7:22 PM GMT	4.48 m
2020-01-02	Low Tide	1:55 AM GMT	1.58 m	High Tide	8:13 AM GMT	4.05 m
	Low Tide	1:56 PM GMT	2.03 m	High Tide	8:11 PM GMT	4.30 m
2020-01-03	Low Tide	2:45 AM GMT	1.75 m	High Tide	9:08 AM GMT	3.93 m
	Low Tide	2:52 PM GMT	2.17 m	High Tide	9:09 PM GMT	4.14 m
2020-01-04	Low Tide	3:45 AM GMT	1.86 m	High Tide	10:11 AM GMT	3.89 m
	Low Tide	4:00 PM GMT	2.25 m	High Tide	10:14 PM GMT	4.06 m
2020-01-05	Low Tide	4:51 AM GMT	1.88 m	High Tide	11:14 AM GMT	3.95 m
	Low Tide	5:14 PM GMT	2.20 m	High Tide	11:20 PM GMT	4.09 m
2020-01-06	Low Tide	5:55 AM GMT	1.80 m	High Tide	12:12 PM GMT	4.09 m
	Low Tide	6:21 PM GMT	2.03 m
2020-01-07	High Tide	12:19 AM GMT	4.21 m	Low Tide	6:50 AM GMT	1.66 m
	High Tide	1:01 PM GMT	4.28 m	Low Tide	7:16 PM GMT	1.80 m
2020-01-08	High Tide	1:11 AM GMT	4.40 m	Low Tide	7:38 AM GMT	1.50 m
	High Tide	1:45 PM GMT	4.49 m	Low Tide	8:04 PM GMT	1.53 m
2020-01-09	High Tide	1:59 AM GMT	4.60 m	Low Tide	8:21 AM GMT	1.33 m
	High Tide	2:26 PM GMT	4.70 m	Low Tide	8:48 PM GMT	1.26 m
2020-01-10	High Tide	2:44 AM GMT	4.80 m	Low Tide	9:03 AM GMT	1.19 m
	High Tide	3:06 PM GMT	4.89 m	Low Tide	9:31 PM GMT	1.01 m
2020-01-11	High Tide	3:29 AM GMT	4.96 m	Low Tide	9:46 AM GMT	1.09 m
	High Tide	3:47 PM GMT	5.05 m	Low Tide	10:15 PM GMT	0.80 m
2020-01-12	High Tide	4:15 AM GMT	5.06 m	Low Tide	10:28 AM GMT	1.05 m
	High Tide	4:29 PM GMT	5.16 m	Low Tide	10:59 PM GMT	0.67 m
2020-01-13	High Tide	5:01 AM GMT	5.09 m	Low Tide	11:11 AM GMT	1.06 m
	High Tide	5:12 PM GMT	5.21 m	Low Tide	11:44 PM GMT	0.61 m
2020-01-14	High Tide	5:48 AM GMT	5.04 m	Low Tide	11:54 AM GMT	1.13 m
	High Tide	5:57 PM GMT	5.19 m
2020-01-15	Low Tide	12:31 AM GMT	0.65 m	High Tide	6:37 AM GMT	4.92 m
	Low Tide	12:39 PM GMT	1.26 m	High Tide	6:45 PM GMT	5.10 m
2020-01-16	Low Tide	1:20 AM GMT	0.77 m	High Tide	7:28 AM GMT	4.75 m
	Low Tide	1:28 PM GMT	1.43 m	High Tide	7:38 PM GMT	4.94 m
2020-01-17	Low Tide	2:14 AM GMT	0.97 m	High Tide	8:24 AM GMT	4.55 m
	Low Tide	2:23 PM GMT	1.62 m	High Tide	8:37 PM GMT	4.75 m
2020-01-18	Low Tide	3:14 AM GMT	1.19 m	High Tide	9:25 AM GMT	4.38 m
	Low Tide	3:28 PM GMT	1.79 m	High Tide	9:44 PM GMT	4.57 m
2020-01-19	Low Tide	4:23 AM GMT	1.38 m	High Tide	10:32 AM GMT	4.27 m
	Low Tide	4:45 PM GMT	1.87 m	High Tide	10:57 PM GMT	4.46 m
2020-01-20	Low Tide	5:36 AM GMT	1.49 m	High Tide	11:41 AM GMT	4.27 m
	Low Tide	6:06 PM GMT	1.80 m
2020-01-21	High Tide	12:10 AM GMT	4.46 m	Low Tide	6:46 AM GMT	1.49 m
	High Tide	12:46 PM GMT	4.36 m	Low Tide	7:16 PM GMT	1.61 m
2020-01-22	High Tide	1:17 AM GMT	4.54 m	Low Tide	7:44 AM GMT	1.44 m
	High Tide	1:42 PM GMT	4.52 m	Low Tide	8:14 PM GMT	1.37 m
2020-01-23	High Tide	2:13 AM GMT	4.64 m	Low Tide	8:33 AM GMT	1.37 m
	High Tide	2:31 PM GMT	4.70 m	Low Tide	9:02 PM GMT	1.16 m
2020-01-24	High Tide	3:02 AM GMT	4.73 m	Low Tide	9:15 AM GMT	1.31 m
	High Tide	3:14 PM GMT	4.85 m	Low Tide	9:44 PM GMT	1.00 m
2020-01-25	High Tide	3:45 AM GMT	4.78 m	Low Tide	9:53 AM GMT	1.27 m
	High Tide	3:53 PM GMT	4.97 m	Low Tide	10:23 PM GMT	0.91 m
2020-01-26	High Tide	4:25 AM GMT	4.79 m	Low Tide	10:28 AM GMT	1.25 m
	High Tide	4:29 PM GMT	5.03 m	Low Tide	10:59 PM GMT	0.88 m
2020-01-27	High Tide	5:02 AM GMT	4.74 m	Low Tide	11:00 AM GMT	1.26 m
	High Tide	5:04 PM GMT	5.02 m	Low Tide	11:33 PM GMT	0.93 m
2020-01-28	High Tide	5:37 AM GMT	4.66 m	Low Tide	11:32 AM GMT	1.31 m
	High Tide	5:37 PM GMT	4.95 m
2020-01-29	Low Tide	12:05 AM GMT	1.03 m	High Tide	6:11 AM GMT	4.54 m
	Low Tide	12:03 PM GMT	1.40 m	High Tide	6:10 PM GMT	4.82 m
2020-01-30	Low Tide	12:37 AM GMT	1.18 m	High Tide	6:45 AM GMT	4.39 m
	Low Tide	12:36 PM GMT	1.53 m	High Tide	6:43 PM GMT	4.66 m
2020-01-31	Low Tide	1:10 AM GMT	1.34 m	High Tide	7:21 AM GMT	4.24 m
	Low Tide	1:13 PM GMT	1.69 m	High Tide	7:21 PM GMT	4.46 m
2020-02-01	Low Tide	1:48 AM GMT	1.53 m	High Tide	8:04 AM GMT	4.07 m
	Low Tide	1:55 PM GMT	1.88 m	High Tide	8:07 PM GMT	4.26 m
2020-02-02	Low Tide	2:35 AM GMT	1.72 m	High Tide	8:56 AM GMT	3.93 m
	Low Tide	2:50 PM GMT	2.06 m	High Tide	9:05 PM GMT	4.07 m
2020-02-03	Low Tide	3:34 AM GMT	1.88 m	High Tide	10:00 AM GMT	3.85 m
	Low Tide	4:01 PM GMT	2.17 m	High Tide	10:16 PM GMT	3.97 m
2020-02-04	Low Tide	4:48 AM GMT	1.95 m	High Tide	11:11 AM GMT	3.88 m
	Low Tide	5:25 PM GMT	2.12 m	High Tide	11:32 PM GMT	4.02 m
2020-02-05	Low Tide	6:04 AM GMT	1.88 m	High Tide	12:17 PM GMT	4.03 m
	Low Tide	6:40 PM GMT	1.90 m
2020-02-06	High Tide	12:40 AM GMT	4.20 m	Low Tide	7:08 AM GMT	1.70 m
	High Tide	1:13 PM GMT	4.28 m	Low Tide	7:40 PM GMT	1.56 m
2020-02-07	High Tide	1:39 AM GMT	4.46 m	Low Tide	8:01 AM GMT	1.46 m
	High Tide	2:02 PM GMT	4.56 m	Low Tide	8:31 PM GMT	1.18 m
2020-02-08	High Tide	2:30 AM GMT	4.74 m	Low Tide	8:48 AM GMT	1.22 m
	High Tide	2:48 PM GMT	4.86 m	Low Tide	9:17 PM GMT	0.82 m
2020-02-09	High Tide	3:18 AM GMT	4.99 m	Low Tide	9:32 AM GMT	1.01 m
	High Tide	3:31 PM GMT	5.12 m	Low Tide	10:02 PM GMT	0.52 m
2020-02-10	High Tide	4:03 AM GMT	5.17 m	Low Tide	10:15 AM GMT	0.85 m
	High Tide	4:15 PM GMT	5.33 m	Low Tide	10:45 PM GMT	0.31 m
2020-02-11	High Tide	4:48 AM GMT	5.25 m	Low Tide	10:57 AM GMT	0.78 m
	High Tide	4:58 PM GMT	5.44 m	Low Tide	11:29 PM GMT	0.24 m
2020-02-12	High Tide	5:33 AM GMT	5.23 m	Low Tide	11:38 AM GMT	0.80 m
	High Tide	5:42 PM GMT	5.43 m
2020-02-13	Low Tide	12:13 AM GMT	0.31 m	High Tide	6:17 AM GMT	5.10 m
	Low Tide	12:21 PM GMT	0.91 m	High Tide	6:27 PM GMT	5.32 m
2020-02-14	Low Tide	12:58 AM GMT	0.52 m	High Tide	7:03 AM GMT	4.88 m
	Low Tide	1:05 PM GMT	1.11 m	High Tide	7:16 PM GMT	5.09 m
2020-02-15	Low Tide	1:46 AM GMT	0.84 m	High Tide	7:53 AM GMT	4.61 m
	Low Tide	1:54 PM GMT	1.37 m	High Tide	8:11 PM GMT	4.78 m
2020-02-16	Low Tide	2:42 AM GMT	1.22 m	High Tide	8:49 AM GMT	4.33 m
	Low Tide	2:54 PM GMT	1.66 m	High Tide	9:16 PM GMT	4.46 m
2020-02-17	Low Tide	3:48 AM GMT	1.58 m	High Tide	9:55 AM GMT	4.10 m
	Low Tide	4:13 PM GMT	1.87 m	High Tide	10:34 PM GMT	4.23 m
2020-02-18	Low Tide	5:10 AM GMT	1.80 m	High Tide	11:12 AM GMT	4.03 m
	Low Tide	5:49 PM GMT	1.87 m	High Tide	11:59 PM GMT	4.18 m
2020-02-19	Low Tide	6:31 AM GMT	1.82 m	High Tide	12:28 PM GMT	4.12 m
	Low Tide	7:10 PM GMT	1.66 m
2020-02-20	High Tide	1:13 AM GMT	4.29 m	Low Tide	7:35 AM GMT	1.71 m
	High Tide	1:31 PM GMT	4.33 m	Low Tide	8:08 PM GMT	1.39 m
2020-02-21	High Tide	2:10 AM GMT	4.44 m	Low Tide	8:24 AM GMT	1.56 m
	High Tide	2:20 PM GMT	4.56 m	Low Tide	8:54 PM GMT	1.14 m
2020-02-22	High Tide	2:55 AM GMT	4.58 m	Low Tide	9:03 AM GMT	1.41 m
	High Tide	3:01 PM GMT	4.77 m	Low Tide	9:32 PM GMT	0.96 m
2020-02-23	High Tide	3:33 AM GMT	4.69 m	Low Tide	9:37 AM GMT	1.27 m
	High Tide	3:36 PM GMT	4.92 m	Low Tide	10:06 PM GMT	0.84 m
2020-02-24	High Tide	4:07 AM GMT	4.75 m	Low Tide	10:08 AM GMT	1.16 m
	High Tide	4:10 PM GMT	5.02 m	Low Tide	10:37 PM GMT	0.79 m
2020-02-25	High Tide	4:39 AM GMT	4.77 m	Low Tide	10:38 AM GMT	1.10 m
	High Tide	4:41 PM GMT	5.04 m	Low Tide	11:07 PM GMT	0.81 m
2020-02-26	High Tide	5:10 AM GMT	4.74 m	Low Tide	11:07 AM GMT	1.09 m
	High Tide	5:10 PM GMT	4.99 m	Low Tide	11:35 PM GMT	0.88 m
2020-02-27	High Tide	5:39 AM GMT	4.67 m	Low Tide	11:36 AM GMT	1.14 m
	High Tide	5:39 PM GMT	4.89 m
2020-02-28	Low Tide	12:02 AM GMT	1.00 m	High Tide	6:08 AM GMT	4.56 m
	Low Tide	12:06 PM GMT	1.25 m	High Tide	6:09 PM GMT	4.75 m
2020-02-29	Low Tide	12:31 AM GMT	1.16 m	High Tide	6:38 AM GMT	4.42 m
	Low Tide	12:38 PM GMT	1.40 m	High Tide	6:41 PM GMT	4.58 m

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