31.1317’ N, 81.3967’ W

St. Simons Island, GA

76°
H -°
L 75°
S
1mph
High tide
7:38 am

Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Wednesday, August 26, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 1:49 pm (0.7 ft)
Next high tide : in 4h 25m at 7:38 am (6.5 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:58 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Sep 1921

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:028.08:278.82:10-0.42:31-0.87:017:49New Moon1Thu
2Fri8:568.39:188.73:02-0.73:26-0.97:017:48New Moon2Fri
3Sat9:488.510:108.53:52-0.84:18-0.87:027:47New Moon3Sat
4Sun10:418.411:028.24:39-0.85:09-0.57:037:46Waxing Crescent4Sun
5Mon11:348.311:547.85:26-0.56:00-0.17:037:44Waxing Crescent5Mon
6Tue12:288.06:13-0.16:540.47:047:43Waxing Crescent6Tue
7Wed12:467.41:217.77:030.37:500.97:047:42First Quarter7Wed
8Thu1:397.02:157.47:560.88:501.27:057:41First Quarter8Thu
9Fri2:326.73:097.28:531.19:481.47:067:39First Quarter9Fri
10Sat3:276.54:047.19:501.310:431.57:067:38First Quarter10Sat
11Sun4:226.45:007.010:451.311:331.47:077:37Waxing Gibbous11Sun
12Mon5:176.55:527.111:371.37:077:36Waxing Gibbous12Mon
13Tue6:096.76:407.312:201.312:261.27:087:34Waxing Gibbous13Tue
14Wed6:566.97:237.41:041.11:121.17:087:33Waxing Gibbous14Wed
15Thu7:387.28:037.51:450.91:550.97:097:32Full Moon15Thu
16Fri8:177.38:397.52:240.82:360.87:107:30Full Moon16Fri
17Sat8:537.59:137.43:000.63:150.87:107:29Full Moon17Sat
18Sun9:277.69:477.33:350.63:520.87:117:28Full Moon18Sun
19Mon10:017.610:217.24:090.64:280.97:117:27Waning Gibbous19Mon
20Tue10:387.610:587.14:440.65:061.07:127:25Waning Gibbous20Tue
21Wed11:197.711:426.95:210.75:471.17:127:24Waning Gibbous21Wed
22Thu12:077.76:030.86:341.37:137:23Waning Gibbous22Thu
23Fri12:316.81:007.76:520.97:321.57:147:21Third Quarter23Fri
24Sat1:276.81:587.77:511.08:391.57:147:20Third Quarter24Sat
25Sun1:296.82:027.77:591.08:491.36:156:19Third Quarter25Sun
26Mon2:366.93:097.99:090.89:551.06:156:18Waning Crescent26Mon
27Tue3:457.24:168.110:160.510:570.66:166:16Waning Crescent27Tue
28Wed4:517.65:198.311:200.211:540.26:176:15Waning Crescent28Wed
29Thu5:518.16:168.612:20-0.16:176:14Waning Crescent29Thu
30Fri6:468.67:088.712:48-0.21:17-0.46:186:12New Moon30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

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Is this week a spring tide or neap tide in St. Simons Island, GA?

St. Simons Island, GA is currently in a spring phase. Tonight's moon is 98% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are St. Simons Island, GA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for St. Simons Island, GA?

Tide predictions for St. Simons Island, GA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for St. Simons Island, GA?

Tide data for St. Simons Island, GA is sourced from NOAA Station #8677344. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8677344.

What is the moon phase in St. Simons Island, GA tonight?

Tonight the moon over St. Simons Island, GA is Full Moon (98% illuminated). This places St. Simons Island, GA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA