St. Marys Tides Today
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St. Marys runs a mean tidal range of about 5.7 ft. This month the highest water, 7.5 ft, comes on the morning of Oct 27, and the lowest, a -0.0 ft minus tide, on the morning of Oct 27.
| High tide | 1:49 AM | 5.8 ft |
| Low tide | 7:42 AM | 0.6 ft |
| High tide | 2:27 PM | 7.0 ft |
| Low tide | 8:45 PM | 1.0 ft |
Today on the water at St. Marys
Today at St. Marys: high tide at 1:49 AM (5.8 ft) and 2:27 PM (7.0 ft), low tide at 7:42 AM (0.6 ft) and 8:45 PM (1.0 ft). The National Weather Service forecast for today is chance rain showers with NE winds 7 to 15 mph, 76°F. Wind that strong can hold water in or push it out, so the real tide may run above or below these predictions. In effect now: Rip Current Statement and High Surf Advisory. Sunrise is at 7:39 AM and sunset at 6:40 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Today | Chance Rain Showers | NE 7 to 15 mph | 76°F |
| Tonight | Chance Rain Showers | NE 14 mph | 66°F |
Forecast: National Weather Service point forecast for this location.
Where St. Marys is
St. Marys sits at 30.7200° N, 81.5483° W on the Carolina and Georgia coast on the South Atlantic Bight, at St. Marys, GA, in Camden County. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1973 until 1985, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is Kings Bay, Msf Pier (NOAA 8679598), 5.2 mi away, and high and low water here run on average about 13 min later than there. The nearest weather station is Kings Bay MSF Pier, GA, a shore station reporting wind and, at most sites, water temperature, 5.4 mi away.
The tide at St. Marys
St. Marys has a semidiurnal tide: two highs and two lows a day of about the same size, roughly 12 hours 25 minutes apart. This month's predictions average 1.9 high tides a day here. The mean range from lower low to higher high is 6.4 ft, and 5.9 ft between the average high and the average low, a large tide. On an average day the higher high tops the lower high by 0.3 ft and the lower low sits 0.2 ft below the other low. For the water around it: Lowcountry tides are semidiurnal, two highs and two lows a day of near equal size, and the range grows toward Georgia, where 6 to 9 ft is normal.
About this station
- High tide reaches St. Marys about 2.0 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
- Highest water on record: 7.9 ft on Feb 9, 1978.
- Lowest on record: -2.7 ft on Apr 5, 1977.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at St. Marys from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 6.4 ft above it and mean sea level 3.3 ft. These datums are controlled from NOAA's Fernandina Beach, FL gauge. Source: NOAA CO-OPS station 8679964, established 1973, gauge removed 1985. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them.
Tide stations near St. Marys
- Beach Creek ent., Cumberland Island: 4.3 mi, tides about 28 min earlier
- Kings Bay, Msf Pier: 5.2 mi, tides about 13 min earlier
- Seacamp Dock, Cumberland Island: 5.4 mi, tides about 17 min earlier
- St. Marys Entrance, North Jetty: 6.1 mi, tides about 45 min earlier
- Cumberland Wharf, Cumberland River: 15.7 mi, tides about 13 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides at St. Marys this month: Oct 8, Oct 9, Oct 10, Oct 11, Oct 25, Oct 26, Oct 27, Oct 28, Oct 29, Oct 30. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.
🔻 Negative (minus) low tides at St. Marys this month: Oct 27. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for St. Marys, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌖 | 5:06–7:06 AM 5:31–7:31 PM | 10:50–12:50 AM 12:27–2:27 PM | 55 |
| Sun Nov 1 🌗 | 6:06–8:06 AM 6:31–8:31 PM | — 1:14–3:14 PM | 42 |
| Mon Nov 2 🌗 | 7:01–9:01 AM 7:26–9:26 PM | 12:01–2:01 AM 1:53–3:53 PM | 33 |
| Tue Nov 3 🌗 | 7:53–9:53 AM 8:18–10:18 PM | 1:09–3:09 AM 2:27–4:27 PM | 47 |
| Wed Nov 4 🌗 | 8:41–10:41 AM 9:06–11:06 PM | 2:14–4:14 AM 2:58–4:58 PM | 60 |
| Thu Nov 5 🌘 | 9:27–11:27 AM 9:52–11:52 PM | 3:17–5:17 AM 3:28–5:28 PM | 73 |
| Fri Nov 6 🌘 | 10:11–12:11 PM 10:36–12:36 AM | 4:18–6:18 AM 3:58–5:58 PM | 83 |
Predictions & observations: NOAA CO-OPS station 8679964. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
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