Tides / United Kingdom / England / St Marys

St Marys

Tide station

St Marys in England, United Kingdom. Heights are metres above lowest astronomical tide, with the same height in feet. Tide times on this page are local time at this station (BST). If you are in another timezone, these clocks are not your phone's time.

Next high tide

4.0 m (13.2 ft)Today · 12:51 PM

Next low tide

2.2 m (7.3 ft)Today · 7:33 PM

High tide is 2 hr 31 min from now and will rise 0.5 m (1.8 ft).

Tide stations 67Flood gauges 0

Tide station

Predicted rise and fall

This column is the predicted rise and fall from the moon and the sun, in metres and in feet. It is not a flood warning, and it is not the depth under the boat. The clocks are local time at this station.

High tide is 2 hr 31 min from now and will rise 0.5 m (1.8 ft).

High and low tides for the next seven days
Day	Tide	Time	Height
Tuesday, October 20	High	12:51 PM	4.03 m (13.21 ft)
Tuesday, October 20	Low	7:33 PM	2.24 m (7.34 ft)
Wednesday, October 21	High	1:46 AM	3.98 m (13.05 ft)
	Low	7:55 AM	2.24 m (7.36 ft)
	High	2:09 PM	4.28 m (14.03 ft)
	Low	8:37 PM	1.93 m (6.35 ft)
Thursday, October 22	High	2:44 AM	4.31 m (14.14 ft)
	Low	8:53 AM	1.89 m (6.21 ft)
	High	3:00 PM	4.61 m (15.13 ft)
	Low	9:24 PM	1.57 m (5.17 ft)
Friday, October 23	High	3:27 AM	4.68 m (15.35 ft)
	Low	9:38 AM	1.51 m (4.96 ft)
	High	3:42 PM	4.96 m (16.26 ft)
	Low	10:04 PM	1.23 m (4.02 ft)
Saturday, October 24	High	4:05 AM	5.04 m (16.53 ft)
	Low	10:19 AM	1.16 m (3.81 ft)
	High	4:20 PM	5.27 m (17.30 ft)
	Low	10:42 PM	0.93 m (3.06 ft)
Sunday, October 25	High	3:42 AM	5.36 m (17.58 ft)
	Low	9:58 AM	0.88 m (2.90 ft)
	High	3:57 PM	5.53 m (18.13 ft)
	Low	10:21 PM	0.73 m (2.40 ft)
Monday, October 26	High	4:19 AM	5.60 m (18.38 ft)
	Low	10:39 AM	0.71 m (2.32 ft)
	High	4:35 PM	5.69 m (18.67 ft)
	Low	11:01 PM	0.64 m (2.10 ft)
Tuesday, October 27	High	4:57 AM	5.74 m (18.84 ft)

See more tides through Sunday, November 29

High and low tides after the first week
Day	Tide	Time	Height
Tuesday, October 27	Low	11:20 AM	0.64 m (2.09 ft)
	High	5:15 PM	5.73 m (18.81 ft)
	Low	11:42 PM	0.67 m (2.19 ft)
Wednesday, October 28	High	5:36 AM	5.76 m (18.89 ft)
	Low	12:04 PM	0.68 m (2.24 ft)
	High	5:56 PM	5.65 m (18.52 ft)
Thursday, October 29	Low	12:25 AM	0.81 m (2.66 ft)
	High	6:18 AM	5.65 m (18.53 ft)
	Low	12:49 PM	0.83 m (2.72 ft)
	High	6:40 PM	5.43 m (17.81 ft)
Friday, October 30	Low	1:11 AM	1.05 m (3.44 ft)
	High	7:03 AM	5.43 m (17.81 ft)
	Low	1:38 PM	1.06 m (3.49 ft)
	High	7:28 PM	5.12 m (16.78 ft)
Saturday, October 31	Low	2:01 AM	1.35 m (4.43 ft)
	High	7:53 AM	5.14 m (16.85 ft)
	Low	2:34 PM	1.35 m (4.42 ft)
	High	8:24 PM	4.76 m (15.60 ft)
Sunday, November 1	Low	2:59 AM	1.66 m (5.45 ft)
	High	8:53 AM	4.83 m (15.85 ft)
	Low	3:39 PM	1.61 m (5.29 ft)
	High	9:32 PM	4.44 m (14.57 ft)
Monday, November 2	Low	4:11 AM	1.90 m (6.22 ft)
	High	10:09 AM	4.61 m (15.12 ft)
	Low	4:59 PM	1.75 m (5.75 ft)
	High	11:00 PM	4.30 m (14.11 ft)
Tuesday, November 3	Low	5:36 AM	1.94 m (6.36 ft)
	High	11:37 AM	4.59 m (15.06 ft)
	Low	6:21 PM	1.69 m (5.53 ft)
Wednesday, November 4	High	12:27 AM	4.42 m (14.49 ft)
	Low	6:53 AM	1.76 m (5.78 ft)
	High	12:54 PM	4.77 m (15.66 ft)
	Low	7:29 PM	1.48 m (4.85 ft)
Thursday, November 5	High	1:31 AM	4.67 m (15.34 ft)
	Low	7:54 AM	1.49 m (4.88 ft)
	High	1:52 PM	5.01 m (16.45 ft)
	Low	8:22 PM	1.25 m (4.10 ft)
Friday, November 6	High	2:21 AM	4.95 m (16.25 ft)
	Low	8:43 AM	1.23 m (4.03 ft)
	High	2:39 PM	5.23 m (17.14 ft)
	Low	9:06 PM	1.07 m (3.52 ft)
Saturday, November 7	High	3:02 AM	5.19 m (17.02 ft)
	Low	9:26 AM	1.05 m (3.43 ft)
	High	3:20 PM	5.36 m (17.60 ft)
	Low	9:45 PM	0.98 m (3.21 ft)
Sunday, November 8	High	3:40 AM	5.36 m (17.57 ft)
	Low	10:05 AM	0.96 m (3.15 ft)
	High	3:58 PM	5.42 m (17.77 ft)
	Low	10:20 PM	0.97 m (3.17 ft)
Monday, November 9	High	4:15 AM	5.44 m (17.84 ft)
	Low	10:41 AM	0.97 m (3.18 ft)
	High	4:33 PM	5.39 m (17.68 ft)
	Low	10:54 PM	1.02 m (3.34 ft)
Tuesday, November 10	High	4:49 AM	5.44 m (17.85 ft)
	Low	11:16 AM	1.04 m (3.42 ft)
	High	5:07 PM	5.30 m (17.38 ft)
	Low	11:27 PM	1.11 m (3.65 ft)
Wednesday, November 11	High	5:22 AM	5.37 m (17.61 ft)
	Low	11:50 AM	1.16 m (3.80 ft)
	High	5:40 PM	5.15 m (16.91 ft)
	Low	11:59 PM	1.24 m (4.07 ft)
Thursday, November 12	High	5:55 AM	5.24 m (17.19 ft)
	Low	12:24 PM	1.30 m (4.26 ft)
	High	6:14 PM	4.98 m (16.32 ft)
Friday, November 13	Low	12:33 AM	1.39 m (4.57 ft)
	High	6:29 AM	5.07 m (16.64 ft)
	Low	12:59 PM	1.46 m (4.80 ft)
	High	6:50 PM	4.77 m (15.65 ft)
Saturday, November 14	Low	1:08 AM	1.57 m (5.16 ft)
	High	7:05 AM	4.88 m (16.00 ft)
	Low	1:37 PM	1.65 m (5.40 ft)
	High	7:28 PM	4.55 m (14.93 ft)
Sunday, November 15	Low	1:46 AM	1.78 m (5.83 ft)
	High	7:44 AM	4.67 m (15.31 ft)
	Low	2:19 PM	1.84 m (6.05 ft)
	High	8:11 PM	4.33 m (14.20 ft)
Monday, November 16	Low	2:30 AM	1.99 m (6.52 ft)
	High	8:30 AM	4.46 m (14.63 ft)
	Low	3:09 PM	2.03 m (6.66 ft)
	High	9:04 PM	4.13 m (13.56 ft)
Tuesday, November 17	Low	3:23 AM	2.17 m (7.13 ft)
	High	9:27 AM	4.29 m (14.07 ft)
	Low	4:11 PM	2.15 m (7.06 ft)
	High	10:11 PM	4.02 m (13.19 ft)
Wednesday, November 18	Low	4:30 AM	2.27 m (7.44 ft)
	High	10:39 AM	4.21 m (13.82 ft)
	Low	5:24 PM	2.14 m (7.03 ft)
	High	11:32 PM	4.06 m (13.32 ft)
Thursday, November 19	Low	5:46 AM	2.21 m (7.23 ft)
	High	11:59 AM	4.30 m (14.11 ft)
	Low	6:34 PM	1.97 m (6.48 ft)
Friday, November 20	High	12:43 AM	4.27 m (14.02 ft)
	Low	6:55 AM	1.98 m (6.50 ft)
	High	1:05 PM	4.53 m (14.87 ft)
	Low	7:32 PM	1.70 m (5.58 ft)
Saturday, November 21	High	1:39 AM	4.59 m (15.05 ft)
	Low	7:52 AM	1.67 m (5.47 ft)
	High	1:58 PM	4.83 m (15.85 ft)
	Low	8:22 PM	1.40 m (4.59 ft)
Sunday, November 22	High	2:26 AM	4.94 m (16.20 ft)
	Low	8:42 AM	1.35 m (4.41 ft)
	High	2:45 PM	5.14 m (16.87 ft)
	Low	9:09 PM	1.13 m (3.69 ft)
Monday, November 23	High	3:10 AM	5.27 m (17.30 ft)
	Low	9:30 AM	1.06 m (3.48 ft)
	High	3:30 PM	5.41 m (17.74 ft)
	Low	9:54 PM	0.92 m (3.01 ft)
Tuesday, November 24	High	3:54 AM	5.55 m (18.20 ft)
	Low	10:17 AM	0.85 m (2.78 ft)
	High	4:14 PM	5.59 m (18.34 ft)
	Low	10:40 PM	0.79 m (2.61 ft)
Wednesday, November 25	High	4:37 AM	5.73 m (18.78 ft)
	Low	11:05 AM	0.72 m (2.35 ft)
	High	4:59 PM	5.66 m (18.56 ft)
	Low	11:28 PM	0.76 m (2.50 ft)
Thursday, November 26	High	5:22 AM	5.79 m (18.99 ft)
	Low	11:54 AM	0.68 m (2.24 ft)
	High	5:45 PM	5.60 m (18.38 ft)
Friday, November 27	Low	12:16 AM	0.82 m (2.69 ft)
	High	6:08 AM	5.73 m (18.81 ft)
	Low	12:43 PM	0.74 m (2.43 ft)
	High	6:33 PM	5.44 m (17.85 ft)
Saturday, November 28	Low	1:05 AM	0.96 m (3.14 ft)
	High	6:55 AM	5.58 m (18.31 ft)
	Low	1:34 PM	0.89 m (2.91 ft)
	High	7:23 PM	5.20 m (17.05 ft)
Sunday, November 29	Low	1:55 AM	1.16 m (3.79 ft)
Sunday, November 29	High	7:47 AM	5.36 m (17.58 ft)

This water today

Sunset is 6:25 PM, 68 minutes before the low at 7:33 PM. Anglers often fish the two hours around a turn that meets dusk. The tide at St Marys is rising toward a high of 4.0 m (13.2 ft) at 12:51 PM. The highest tide on this page is 5.8 m (19.0 ft) on Thursday, November 26, in 37 days. That is 1.8 m (5.9 ft) above today's higher high.

King tide and neap

The next king tide is Wednesday, October 28, 2026. That is 8 days from today. It is the highest high tide in the coming lunar cycle, about a month of tides. What a king tide is.

The next neap is Tuesday, October 20, 2026. That is today. That day has the smallest rise and fall in the coming two weeks, the opposite of a king tide.

Five-day fishing snapshot

This is the next five days at St Marys. It uses the tide prediction at this station, the sun and moon at this coordinate, and the MET Norway forecast. A day is highlighted when a high or low falls within two hours of sunrise or sunset. Tide and sun times are local time at this station.

Tuesday

The moon is a waxing gibbous, about 68% lit. The larger tides fall nearer the new moon and the full moon. Sunrise is 7:54 AM and sunset is 6:25 PM. The tides are a high of 3.8 m (12.4 ft) at 12:12 AM, a low of 2.5 m (8.0 ft) at 6:30 AM, a high of 4.0 m (13.2 ft) at 12:51 PM, and a low of 2.2 m (7.3 ft) at 7:33 PM. The low at 6:30 AM is 84 minutes before sunrise. The low at 7:33 PM is 68 minutes after sunset. The forecast is Rain, 14°C, wind 27 kn NW, rain 11.6 mm, waves 2.2 m (7.2 ft), pressure 1010 hPa (29.83 in), falling. That forecast is rough water.

Wednesday

The moon is a waxing gibbous, about 77% lit. The larger tides fall nearer the new moon and the full moon. Sunrise is 7:56 AM and sunset is 6:23 PM. The tides are a high of 4.0 m (13.1 ft) at 1:46 AM, a low of 2.2 m (7.4 ft) at 7:55 AM, a high of 4.3 m (14.0 ft) at 2:09 PM, and a low of 1.9 m (6.3 ft) at 8:37 PM. The low at 7:55 AM is 1 minute before sunrise. The forecast is Rain, 14°C, wind 36 kn NW, rain 3.8 mm. That forecast is rough water.

Thursday

The moon is a waxing gibbous, about 85% lit. The larger tides fall nearer the new moon and the full moon. Sunrise is 7:58 AM and sunset is 6:21 PM. The tides are a high of 4.3 m (14.1 ft) at 2:44 AM, a low of 1.9 m (6.2 ft) at 8:53 AM, a high of 4.6 m (15.1 ft) at 3:00 PM, and a low of 1.6 m (5.2 ft) at 9:24 PM. The low at 8:53 AM is 55 minutes after sunrise. The forecast is Rain, 15°C, wind 34 kn SE, rain 8.3 mm. That forecast is rough water.

Friday

The moon is a waxing gibbous, about 92% lit. The larger tides fall nearer the new moon and the full moon. Sunrise is 7:59 AM and sunset is 6:19 PM. The tides are a high of 4.7 m (15.3 ft) at 3:27 AM, a low of 1.5 m (5.0 ft) at 9:38 AM, a high of 5.0 m (16.3 ft) at 3:42 PM, and a low of 1.2 m (4.0 ft) at 10:04 PM. The low at 9:38 AM is 99 minutes after sunrise. The forecast is Rain, 15°C, wind 44 kn NW, rain 5.2 mm. That forecast is rough water.

Saturday

The moon is a waxing gibbous, about 97% lit. The larger tides fall nearer the new moon and the full moon. Sunrise is 8:01 AM and sunset is 6:17 PM. The tides are a high of 5.0 m (16.5 ft) at 4:05 AM, a low of 1.2 m (3.8 ft) at 10:19 AM, a high of 5.3 m (17.3 ft) at 4:20 PM, and a low of 0.9 m (3.1 ft) at 10:42 PM. The high at 4:20 PM is 117 minutes before sunset. The forecast is Rain, 15°C, wind 38 kn SW, rain 11.3 mm. That forecast is rough water.

Tuesday, Wednesday, Thursday, Friday, and Saturday are the days in this snapshot where a turn meets sunrise or sunset.

Average tide levels

Mean tide range: 3.65 m (11.98 ft)
Mean high water: 4.95 m (16.23 ft)
Mean low water: 1.30 m (4.26 ft)
Mean sea level: 3.10 m (10.16 ft)

These levels use the same zero as the tide table, lowest astronomical tide. Each height is shown in metres and in feet. Mean tide range is the average rise from low to high.

Sun and moon

First light: 6:07 AM
Nautical twilight begins: 6:44 AM
Dawn: 7:22 AM
Blue hour, morning: 7:22 AM to 7:34 AM
Golden hour, morning: 7:34 AM to 8:40 AM
Sunrise: 7:55 AM
Solar noon: 1:10 PM
Golden hour, evening: 5:40 PM to 6:45 PM
Sunset: 6:25 PM
Blue hour, evening: 6:45 PM to 6:57 PM
Dusk: 6:57 PM
Nautical twilight ends: 7:35 PM
Last light: 8:12 PM
Day length: 10 hours 30 minutes
Moon: First Quarter, about 67% lit
Moonrise: 4:15 PM
Moonset: 12:51 AM

The larger tides, called spring tides, fall near the new moon and the full moon. The smaller neap tides fall near the quarters. Light times are for this coordinate, in local time at this station.

Forecast

Tuesday 14°C
Rain
27 kn NW · Rain 11.6 mm · 1010 hPa (29.83 in), falling · Waves 2.2 m (7.2 ft)
Wednesday 14°C
Rain
36 kn NW · Rain 3.8 mm
Thursday 15°C
Rain
34 kn SE · Rain 8.3 mm
Friday 15°C
Rain
44 kn NW · Rain 5.2 mm
Saturday 15°C
Rain
38 kn SW · Rain 11.3 mm

Data from MET Norway. Temperature is Celsius and wind is knots.

Hart-Davis, Michael; Dettmering, Denise; Seitz, Florian (2025). TICON-4: TIdal CONstants based on GESLA-4 sea-level records. SEANOE. https://doi.org/10.17882/109129. Licensed CC BY 4.0.

On the water nearby

The closest named places from OpenStreetMap. A place with no name on that map is left off. Private and customer-only launches are labeled.

Boat ramps

Rechabite Slip0.2 mi

Marinas

St Mary's Harbour0.1 mi

Beaches

Arlo Porth0.1 mi
Town Beach0.2 mi
Little Porth0.3 mi
Porthcressa Beach0.3 mi
Porth Mellon0.4 mi
Thomas' Porth or Shark's Pit0.4 mi

Parks

Holgates Green0.2 mi
Parsons Field0.3 mi
The Triangle1.2 mi

Nature reserves

Higher Moors1.3 mi

Nearby tide stations

Newlyn37 mi · England
Port Isaac80 mi · England
Devonport99 mi · England
Ilfracombe132 mi · England
Teignmouth Pier132 mi · England
Milford Haven135 mi · Wales

On the water, use the app. Widgets, Apple Watch, and offline tides.

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