TidePlanet
Official alerts:
  • Coastal Flood Warning: significant flooding along the shore at high tide. Until Fri 30, 2:00 am. NWS Jacksonville FL
  • Rip Current Statement: dangerous rip currents at the beaches: swimming is risky. Until Fri 30, 8:00 pm. NWS Jacksonville FL
  • Small Craft Advisory: winds or seas hazardous to small boats. Until Fri 30, 6:00 am. NWS Jacksonville FL

Today in St. Marys there are high tides at 11:28 am (7.3 ft) and 11:41 pm (6.1 ft) and low tides at 4:50 am and 5:49 pm. Tide coefficient 78. Right now the tide is falling toward the low tide at 5:49 pm. The sun rises at 7:38 am and sets at 6:41 pm: 11 h 3 min of daylight. The moon is 91% illuminated (waning gibbous) and rises at 8:36 pm. Major solunar periods run from 2:02 am to 4:02 am and from 2:34 pm to 4:34 pm. The next spring tides arrive from October 26 to 28. The sea is moderate, with 7.1 ft waves. There's a moderate breeze from the northeast (16 mph). Clear sky, 73 °F.

Fishing

Fishing in St. Marys today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: medium
6
Average day · 6 out of 10 6:10–6:50 pm Also 10:40 pm–12:00 am
  • Low tide at 5:49 pm
  • Sunset at 6:41 pm, golden hour from 6:08 pm
  • Steady pressure (30.12 inHg), light onshore wind (11 mph) and 6.9 ft waves
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 78 (average tides)

Your day at a glance

The best window, 6:10 pm to 6:50 pm, combines the 5:49 pm low tide, sunset and a light onshore breeze. Also good from 10:40 pm to 12:00 am, with the 11:41 pm high tide and a light onshore breeze.

Species with the most records nearby: spot, striped mullet, Atlantic croaker and Atlantic Spanish mackerel. What you can catch

How it works · Next 7 days · Fishing rules

Beach

Beach day in St. Marys

Beach forecast, 7 days →

Is it a beach day?

1
Not a beach day · 1 out of 10 No good beach time today.
  • Sunny
  • Feels like 75 °F: pleasant
  • UV 5 (moderate): SPF 30 sunscreen
  • Water at 70 °F (nice)
  • Low tide at 5:49 pm: more sand
  • Moderate onshore wind (17 mph): choppy water

Dangerous surf during beach hours. Stay out if the red flag is up, and never swim where there is no lifeguard.

Today, hour by hour

  • Swimming Dangerous · 7.2 ft

    7.2 ft waves every 10 s: dangerous for swimming. Stay out if the red flag is up. High rip current risk (official statement in effect). If you're caught in a rip current, don't swim against it: swim parallel to shore and wave for help. Always follow the lifeguard's flags.

  • Water 70 °F

    Nice for swimming.

  • Sun & sunscreen UV 5 · SPF 30

    Max UV 5 (moderate): SPF 30 sunscreen, reapplied every 2 hours.

  • Wind 17 mph

    Moderate onshore wind (17 mph).

  • Tide & sand 5:49 pm

    Low tide at 4:50 am and 5:49 pm: that's when there's the most sand. High tide at 11:28 am and 11:41 pm.

We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority. How it works · The next 7 days

Beaches near St. Marys

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Water quality: check the official beach advisories for Georgia (Georgia Healthy Beaches).

Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap

Beaches and amenities: © OpenStreetMap contributors (ODbL).

Tides

Tides in St. Marys

Tides for 7 days →

Today's high and low tides

  • ▼ Low tide 4:50 am 0.0 ft
  • ▲ High tide 11:28 am 7.3 ft · coef. 78
  • ▲ High tide 11:41 pm 6.1 ft · coef. 77

↓ Falling The tide is falling. 55 min to low tide at 5:49 pm.

Tide coefficient 78 for the 11:28 am high tide and 77 for the 11:41 pm high tide. Average coefficient. The water rises and falls 7.3 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?

2026 extremes: the highest tide of the year is on November 25 (7.4 ft) and the lowest, on December 25 (-0.9 ft).

Semidiurnal: two high and two low tides a day, of similar height.

Heights above mean lower low water (MLLW), the zero of US nautical charts. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. MLLW

Tide coefficient and range in October

The biggest tides of the month came from October 7 to 10 (coefficient 84, 7.3 ft range). The smallest, from October 17 to 19 (coefficient 49, 4.5 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Wed 28 7:38 am · 6:41 pm Low tide 4:50 am · 0.0 ft High tide 11:28 am · 7.3 ft Low tide 5:49 pm · 0.6 ft High tide 11:41 pm · 6.1 ft Coef. 78 91% Major periods 2:02 am · 2:34 pm Medium
Thu 29 7:39 am · 6:41 pm Low tide 5:41 am · 0.2 ft High tide 12:30 pm · 7.2 ft Low tide 6:45 pm · 0.8 ft — Coef. 75 84% Major periods 3:06 am · 3:38 pm Medium
Fri 30 7:40 am · 6:40 pm High tide 12:43 am · 5.9 ft Low tide 6:36 am · 0.4 ft High tide 1:32 pm · 7.1 ft Low tide 7:45 pm · 0.9 ft Coef. 73 74% Major periods 4:11 am · 4:42 pm Medium
Sat 31 7:40 am · 6:39 pm High tide 1:46 am · 5.9 ft Low tide 7:39 am · 0.6 ft High tide 2:32 pm · 7.0 ft Low tide 8:48 pm · 0.9 ft Coef. 69 63% Major periods 5:13 am · 5:42 pm Medium
Sun 1 6:41 am · 5:38 pm High tide 1:49 am · 6.0 ft Low tide 7:47 am · 0.8 ft High tide 2:33 pm · 6.9 ft Low tide 8:49 pm · 0.8 ft Coef. 68 Last quarter Major periods 5:11 am · 5:38 pm Medium
Mon 2 6:42 am · 5:37 pm High tide 2:52 am · 6.2 ft Low tide 8:56 am · 0.8 ft High tide 3:33 pm · 6.7 ft Low tide 9:46 pm · 0.6 ft Coef. 70 41% Major periods 6:03 am · 6:28 pm Medium
Tue 3 6:43 am · 5:36 pm High tide 3:55 am · 6.4 ft Low tide 10:00 am · 0.8 ft High tide 4:30 pm · 6.6 ft Low tide 10:38 pm · 0.4 ft Coef. 73 30% Major periods 6:52 am · 7:15 pm Medium

▲ high tide · ▼ low tide · heights above MLLW. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.

Where this tide comes from

A · Official station

Tides from the St. Marys station (NOAA), 0.7 mi from St. Marys. Times and heights are its predictions.

Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)

How we calculate the tide

Sea and waves

The sea at St. Marys

7-day waves

Sea stateSea state: moderate

Moderate Douglas 4 · strong breeze, Beaufort 6
Waves 7.1 ft · 7.4 s from the east-northeast (73°)
Wind waves — —
Current 0.2 mph toward the S

The waves you may find

  • Most commonMost common3.5 ft
  • Significant7.1 ft
  • Highest expectedHighest14 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 14 ft. Before heading out, expect waves of up to 14 ft.

Wind on the coast and offshore

On the coast 16 mph NE · gusts 28
Offshore (18 mi E)Offshore 27 mph NNE · gusts 35

Cross-onshore wind. The coast faces east and the wind comes in from the sea at an angle: a bit more surf at the shore and drift along the coast, toward land.

Cross-onshore Hourly wind →

Wave height, next 7 daysWaves, next 7 days

Waves stay much the same all week. The biggest waves arrive on Wednesday 28: 7.2 ft with a period of 7 s, from the east-northeast (moderate).

Water temperature

Water temperature →
Water now70.2 °F
Today 69.8–70.2 °F air: 60 / 75 °F

Water temperature changes how fish behave: in very cold or very warm water they feed less. The water warms over the next few days: about 71.7 °F by Tuesday 3.

Water colder than normal for late October (−3.7 °F).

Water temperature →

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 4:53 pm (local time).

Nearest buoy

Offshore Fernandina Beach, FL (132) Buoy 41112 · 15 mi E of here Measured at 3:56 pm, 57 min ago
Waves 6.9 ft · 11 s from the east (93°)
Water 71.8 °F

This is a real measurement of the sea, not a forecast. Data from station 41112, courtesy of CDIP (Coastal Data Information Program, Scripps Institution of Oceanography), via the NOAA National Data Buoy Center.

Diving

Diving in St. Marys today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: fair
4
Fair day · 4 out of 10 5:10–6:40 pm Also 9:20 am–12:20 pm
  • Slack water around low tide (5:49 pm): little current from 5:30 pm to 6:10 pm
  • 7.0 ft waves: careful getting in and out
  • Moderate onshore wind (14 mph)
  • 0.2 mph current toward the southwest, weak (model)
  • Daylight
Swell 7.0 ft —
Likely visibility Fair Snorkeling: poor
Water and suit 69.8 °F 5 mm wetsuit
Current 0.2 mph toward the SW
  • Slack water today: low tide 4:50 am (4:30–5:10 am), high tide 11:28 am (10:40 am–12:10 pm), low tide 5:49 pm (5:30–6:10 pm) and high tide 11:41 pm (11:00 pm–12:20 am)
  • Likely visibility: fair. Swell (up to 7.2 ft) over the last few days has stirred up the water. Based on the last 24 hours of data.
  • Water at 69.8 °F: a 5 mm wetsuit.
  • Snorkeling: better not, with these waves, wind or current.
  • Night dive: dark from 7:06 pm. Waning gibbous (91%), rising at 8:36 pm: a bright night.

Your diving day at a glance

The best window, 5:10 pm to 6:40 pm, combines slack water at low tide and weak current, though with waves and moderate wind. Also worth a look from 9:20 am to 12:20 pm, with slack water at high tide and the sun high, though with waves, moderate wind and current.

Slack water comes from the tide: in inlets, channels and between islands the water can keep running for an hour or two after. Ask the local dive shop.

Never dive alone and check with the local dive shop: this rating is a guide, not a substitute for a professional.

How it works · Next 7 days

Dive sites, wrecks and dive shops nearby

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Within 12 mi. Some may be missing or closed; marine reserves usually need a permit. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap

Wreck and reef positions are approximate and not for navigation; a wreck’s depth runs from the top of the hull to the seabed.

Sites: © OpenStreetMap contributors (ODbL). US wrecks: NOAA electronic navigational charts (ENC), a U.S. Government work; not for navigation. Artificial reefs: NOAA and BOEM (MarineCadastre.gov), a U.S. Government work.

Weather

Weather in St. Marys

14-day weather

Now in St. Marys

Now 73 °F Clear sky · feels like 73 °F · 60 / 75 °F
Low / high
60 / 75 °F
Rain
0.00 in · 6%
Clouds
5%
Humidity
82%
Dew pointDew point
67 °F
Visibility
10 mi
UV indexUV
1 · low
Air qualityAir
Moderate · 52
Saharan dust
No

Pressure and fishing

  • ↗ RisingRising Anglers say fish bite less for a while
  • → SteadySteady · now Anglers expect normal activity
  • ↘ FallingFalling Anglers say fish feed more before the change

Steady now (+0.02 inHg in 3 hours). It barely changes over the next 48 hours. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Today, hour by hourHour by hour

Bars: mean wind. Dashed line: gusts. Arrows point where the wind blows to.

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky ClearClearPartly cloudyPartly cloudyClear skyClear skyClear skyClear
Temperature 65°65°63°63°74°75°71°69°
Wind (mph) 8 NNE8 NNE8 N10 N16 NNE17 NE14 NE12 NE
Gusts 2626222426282930
Waves 7.1 ft7.1 ft7.2 ft7.0 ft7.2 ft7.1 ft7.0 ft6.8 ft
Rain 0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
  • 6:00 pm 71° 14 NE 7.0 ft
  • 9:00 pm 69° 12 NE 6.8 ft
  • 12:00 am 68° 11 NE 6.7 ft
  • 3:00 am 68° 10 NNE 6.8 ft
  • 6:00 am 68° 12 NNE 7.0 ft
  • 9:00 am 70° 14 NNE 7.0 ft
  • 12:00 pm 73° 15 NNE 7.0 ft
  • 3:00 pm 74° 15 NNE 6.5 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 28 Overcast 60 / 75 °F 17 mph NNE 7.2 ft 11:28 am · 11:41 pm
Thu 29 Overcast 68 / 74 °F 15 mph NNE 7.2 ft 12:30 pm
Fri 30 Overcast 66 / 75 °F 13 mph NNE 5.9 ft 12:43 am · 1:32 pm
Sat 31 Light drizzle 68 / 76 °F 12 mph ENE 5.4 ft 1:46 am · 2:32 pm
Sun 1 Rain 67 / 73 °F 13 mph ENE 5.9 ft 1:49 am · 2:33 pm
Mon 2 Rain 65 / 73 °F 12 mph NE 6.8 ft 2:52 am · 3:33 pm
Tue 3 Light drizzle 63 / 74 °F 11 mph NE 6.6 ft 3:55 am · 4:30 pm
Wed 4 Mainly clear 64 / 76 °F 10 mph ENE 5.6 ft 4:54 am · 5:23 pm
Thu 5 Light drizzle 62 / 75 °F 9 mph SSE 5.0 ft 5:47 am · 6:10 pm
Fri 6 Light rain 59 / 74 °F 7 mph WSW 4.0 ft 6:35 am · 6:52 pm
Sat 7 Light drizzle 56 / 70 °F 7 mph N 3.2 ft 7:19 am · 7:31 pm
Sun 8 Light drizzle 54 / 71 °F 9 mph NW 3.1 ft 7:59 am · 8:09 pm
Mon 9 Light drizzle 58 / 67 °F 9 mph N 4.7 ft 8:39 am · 8:47 pm
Tue 10 Light drizzle 59 / 68 °F 10 mph N 4.1 ft 9:18 am · 9:27 pm
  • Thu 29 Overcast 68° / 74° 7.2 ft
  • Fri 30 Overcast 66° / 75° 5.9 ft
  • Sat 31 Light drizzle 68° / 76° 5.4 ft
  • Sun 1 Rain 67° / 73° 5.9 ft
  • Mon 2 Rain 65° / 73° 6.8 ft
  • Tue 3 Light drizzle 63° / 74° 6.6 ft
  • Wed 4 Mainly clear 64° / 76° 5.6 ft
See all 14 days →

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 4:53 pm (local time).

Sun

The sun in St. Marys

Sunrise and sunset →

Sunrise and sunset

Rises 7:38 am in the ESE (105°)ESE
Sets 6:41 pm in the WSW (255°)WSW
  • First light 6:45 am
  • Full dark 7:35 pm
  • Civil dawn 7:13 am
  • Civil dusk 7:06 pm
  • Solar noon 1:10 pm (46° high)
  • Daylight 11 h 3 min (−2 min)
  • Evening golden hour 6:08 pm
  • Full dark 7:35 pm

Golden hour and the day-night map

Morning golden hour7:38–8:11 am
Evening golden hour6:08–6:41 pm
St. Marys

Today the sun is 92,354,329 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in St. Marys

The moon for 7 days →

Moon phase and position

Waning gibbous · 91% 91% illuminated · 18.0 days old New moon on Mon, Nov 9 · 2:03 am
Rises 8:36 pm in the ENE (58°)ENE
Sets 11:38 am tomorrow · in the WNW (303°) · set at 10:29 am
Transit 3:02 am overhead
Visible 15 h 2 min from 8:36 pm to 11:38 am

Today the moon is 226,429 mi away and looks 32′ 47″ across.

Solunar periods

Today's activity: medium
  • 2:02–4:02 am Major · the moon passes overhead · high activity
  • 2:34–4:34 pm Major · the moon passes underfoot · high activity
  • 9:59–10:59 am Minor · moonset · medium activity
  • 8:06–9:06 pm Minor · moonrise · medium activity

According to solunar theory, fish feed more when the moon passes overhead or underfoot (major periods, about 2 h) and when it rises or sets (minor periods, 1 h). It works best around new and full moon.

Upcoming moon phases

2026 moon calendar →
  • Last quarter Sun, Nov 1 · 3:29 pmNov 1 in 4 days
  • New moon Mon, Nov 9 · 2:03 amNov 9 in 12 days
  • First quarter Tue, Nov 17 · 6:48 amNov 17 in 20 days
  • Full moon Tue, Nov 24 · 9:54 amNov 24 in 27 days

Perigee on October 28, 226,426 mi away, coinciding with the spring tides from October 26 to 28: they will be stronger than usual.

Place

Where to fish in St. Marys

All places in Georgia →

Piers, ramps and tackle shops nearby

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Within 9.3 mi. A spot may be missing or closed. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap

Spots: © OpenStreetMap contributors (ODbL) and Overture Maps. Boat ramp facilities: FWC-FWRI (Florida).

Water depth

Shallow, gradual

Shallow, gradual bottom: 16 ft at 0.9 mi from shore and 0.3 ft at 1.5 mi.

From the shoreline (1.1 mi from St. Marys) out to sea, heading east.

How far from shore

  • 16 ft deep0.9 mi
  • 33 ft deepnot within 1.5 mi
  • 66 ft deepnot within 1.5 mi
  • 164 ft deepnot within 1.5 mi

For fishing, swimming and diving

  • Shore fishing. Shallow, gradual bottom (16 ft at 0.9 mi): cast far from the beach and fish the high tide, when there is more water close in.
  • Swimming. A very gentle way in with plenty of shallow water, good for kids. At low tide the water can be far out.
  • Diving. Shallow: the water doesn't reach 33 ft within 1.5 mi. For deeper dives, take a boat farther out.

Inside bays, estuaries and harbors the bottom changes a lot from spot to spot (channels and shoals): use this only as a rough guide. There is land ahead (an island, a headland or the far shore) 1.5 mi out.

Source: NOAA U.S. Coastal Relief Model (public domain), cells of about 300 ft; depth below mean sea level. For reference only: not for navigation or anchoring.

Tides near St. MarysTides nearby

All places in Georgia, A to Z (128) →

St. Marys at a glance

  • Town or city of about 17,968 people. Coordinates: 30.731° N, 81.546° W.
  • It is 97 mi south of Savannah, the main place in Georgia. The sun rises at the same time and sets 4 min later than in Savannah.
  • The nearest tide station, St. Marys, is 0.7 mi to the south.
  • Its coast faces east.
  • Beaches and harbors nearby: Dungeness Wharf (4.6 mi).

Questions about St. MarysQuestions

What time is high tide today in St. Marys?

Today in St. Marys there are high tides at 11:28 am (7.3 ft) and 11:41 pm (6.1 ft) and low tides at 4:50 am and 5:49 pm. Tide coefficient 78.

What time is sunset today in St. Marys?

At 6:41 pm. There is light until the end of civil twilight, at 7:06 pm.

What time is sunrise tomorrow in St. Marys?

At 7:39 am. First light comes at 6:46 am.

What phase is the moon today?

Waning gibbous, 91% illuminated. New moon on Mon, Nov 9 · 2:03 am.

When are the next spring tides?

From October 26 to 28, together with the lunar perigee: they will be stronger than usual.

What are today's solunar periods?

Major 2:02–4:02 am, Minor 9:59–10:59 am, Major 2:34–4:34 pm, Minor 8:06–9:06 pm. Today's activity is medium.

What's the weather like today in St. Marys?

Overcast, from 60 °F to 75 °F, with a moderate breeze from the northeast (16 mph) and a 6% chance of rain.

How is the sea today in St. Marys?

Moderate (Douglas 4): 7.1 ft waves with a period of 7.4 s from the east-northeast. The water is 70.2 °F.

When is the best time to visit St. Marys?

The best time to visit St. Marys is from March to May and from October to November: highs of 72 °F to 84 °F, about 7 rainy days a month and 7 hours of sunshine a day.

Can I use this data for navigation?

No. These are predictions for fishing and leisure; for navigation, use the official publications.

Where this data comes from

Tide: NOAA station St. Marys (public domain), via Slackwater database. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).

Spotted a mistake? Tell us · How we calculate the tide

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