St. Marys Entrance, North Jetty Tides Today
Open this station in TidalMapLive water level, free for 7 days
St. Marys Entrance, North Jetty runs a mean tidal range of about 5.5 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 28.
| High tide | 12:45 AM | 5.9 ft |
| Low tide | 7:04 AM | 0.6 ft |
| High tide | 1:19 PM | 7.0 ft |
| Low tide | 8:01 PM | 1.0 ft |
Today on the water at St. Marys Entrance, North Jetty
Today at St. Marys Entrance, North Jetty: high tide at 12:45 AM (5.9 ft) and 1:19 PM (7.0 ft), low tide at 7:04 AM (0.6 ft) and 8:01 PM (1.0 ft). The National Weather Service forecast for today is chance rain showers with NE winds 13 to 22 mph, 74°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: Small Craft Advisory. Sunrise is at 7:39 AM and sunset at 6:39 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Today | Chance Rain Showers | NE 13 to 22 mph | 74°F |
| Tonight | Chance Rain Showers | NE 22 mph | 70°F |
Forecast: National Weather Service point forecast for this location.
Where St. Marys Entrance, North Jetty is
St. Marys Entrance, North Jetty sits at 30.7200° N, 81.4450° W on the Carolina and Georgia coast on the South Atlantic Bight, about 1 mi north of Fernandina Beach, FL. The station here is a subordinate tide prediction point. NOAA has no gauge in the water at this spot; its times and heights are published as offsets from a reference gauge, named below. The closest gauge measuring live water level is Fernandina Beach, Amelia River (NOAA 8720030), 3.6 mi away, and high and low water here run on average about 19 min earlier than there. The nearest weather station is Fernandina Beach, FL, a shore station reporting wind and, at most sites, water temperature, 3.3 mi away.
The tide at St. Marys Entrance, North Jetty
St. Marys Entrance, North Jetty 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. 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
- NOAA predicts tides here from Fernandina Beach, Amelia River, station 8720030. High tide comes about 36 min earlier and low tide about 3 min earlier than there.
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 publishes no datums for this point. Its predictions are offsets from Fernandina Beach, Amelia River and are referenced to MLLW there. Source: NOAA CO-OPS station 8679997. The tide times and heights are published as time and height offsets from its reference gauge; TidalMap republishes them daily and does not alter them.
Tide stations near St. Marys Entrance, North Jetty
- Beach Creek ent., Cumberland Island: 1.9 mi, tides about 17 min later
- Seacamp Dock, Cumberland Island: 3.4 mi, tides about 28 min later
- Kings Bay, Msf Pier: 4.9 mi, tides about 32 min later
- St. Marys: 6.1 mi, tides about 45 min later
- Cumberland Wharf, Cumberland River: 14.5 mi, tides about 32 min later
TidalMapMonthly tide calendar
🌊 Biggest flood tides at St. Marys Entrance, North Jetty this month: Oct 10, Oct 11, Oct 12, 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 Entrance, North Jetty this month: Oct 27, Oct 28. 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 Entrance, North Jetty, 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 🌖 | 5:05–7:05 AM 5:30–7:30 PM | 10:49–12:49 AM 12:27–2:27 PM | 55 |
| Sun Nov 1 🌗 | 6:05–8:05 AM 6:30–8:30 PM | — 1:13–3:13 PM | 42 |
| Mon Nov 2 🌗 | 7:01–9:01 AM 7:26–9:26 PM | 12:00–2:00 AM 1:53–3:53 PM | 33 |
| Tue Nov 3 🌗 | 7:52–9:52 AM 8:17–10:17 PM | 1:09–3:09 AM 2:27–4:27 PM | 47 |
| Wed Nov 4 🌗 | 8:40–10:40 AM 9:05–11:05 PM | 2:14–4:14 AM 2:58–4:58 PM | 60 |
| Thu Nov 5 🌘 | 9:26–11:26 AM 9:51–11:51 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 3:57–5:57 PM | 83 |
Predictions & observations: NOAA CO-OPS station 8679997. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
Open this station in TidalMapLive water level, free for 7 days
Set your own flood/low lines, moon & solunar, weather and live tides in the app, start a free TidalMap trial.