Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in South San Diego Bay, CA.
Next low tide : 8:34 pm (1.8 ft)
Next high tide : in 37m at 1:50 pm (5.5 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:04 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Apr 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:145.97:195.212:131.512:56-0.85:366:08Waning Crescent1Sun
2Mon7:066.27:535.81:030.81:37-0.95:356:09Waning Crescent2Mon
3Tue7:556.38:296.21:510.12:17-0.95:346:09New Moon3Tue
4Wed8:436.29:046.42:38-0.42:55-0.65:326:10New Moon4Wed
5Thu9:305.89:416.53:24-0.73:32-0.15:316:11New Moon5Thu
6Fri10:195.310:196.44:10-0.84:080.55:306:11Waxing Crescent6Fri
7Sat11:114.611:006.14:59-0.64:441.25:286:12Waxing Crescent7Sat
8Sun12:124.05:53-0.25:221.95:276:13Waxing Crescent8Sun
9Mon1:273.56:560.26:112.55:266:13Waxing Crescent9Mon
10Tue12:395.13:303.38:130.57:342.95:256:14First Quarter10Tue
11Wed1:474.65:283.69:430.69:373.05:236:15First Quarter11Wed
12Thu3:164.46:124.010:570.511:102.65:226:16First Quarter12Thu
13Fri4:444.56:404.411:470.45:216:16First Quarter13Fri
14Sat5:454.77:024.712:022.212:250.35:206:17Waxing Gibbous14Sat
15Sun6:314.97:235.012:411.612:570.25:196:18Waxing Gibbous15Sun
16Mon7:095.07:435.31:151.21:260.25:176:18Waxing Gibbous16Mon
17Tue7:455.18:055.51:480.71:540.35:166:19Waxing Gibbous17Tue
18Wed8:195.18:295.72:200.42:210.55:156:20Full Moon18Wed
19Thu8:535.08:535.82:520.12:460.75:146:21Full Moon19Thu
20Fri9:274.79:185.93:23-0.13:111.05:136:21Full Moon20Fri
21Sat10:044.59:445.83:56-0.13:331.45:126:22Full Moon21Sat
22Sun10:454.110:115.74:31-0.13:551.75:106:23Waning Gibbous22Sun
23Mon11:343.810:425.65:100.04:192.15:096:23Waning Gibbous23Mon
24Tue12:363.56:000.14:482.55:086:24Waning Gibbous24Tue
25Wed1:553.47:030.35:402.95:076:25Third Quarter25Wed
26Thu12:285.03:323.58:200.37:513.15:066:26Third Quarter26Thu
27Fri1:564.84:484.09:370.29:522.85:056:26Third Quarter27Fri
28Sat3:304.85:324.610:410.011:072.15:046:27Third Quarter28Sat
29Sun5:525.07:105.212:33-0.26:037:28Waning Crescent29Sun
30Mon6:585.37:465.91:051.21:19-0.36:027:28Waning Crescent30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410135)

Common Questions About South San Diego Bay, CA Tides

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What time does the tide turn (slack tide) in South San Diego Bay, CA today?

Slack tide in South San Diego Bay, CA is approximately 5:12 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in South San Diego Bay, CA?

South San Diego Bay, CA is currently in a transitional phase. Tonight's moon is 64% 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 shifting between spring and neap.

What datum are South San Diego Bay, CA 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 South San Diego Bay, CA?

Tide predictions for South San Diego Bay, CA 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 South San Diego Bay, CA?

Tide data for South San Diego Bay, CA is sourced from NOAA Station #9410135. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410135.

What is the moon phase in South San Diego Bay, CA tonight?

Tonight the moon over South San Diego Bay, CA is Third Quarter (64% illuminated). This places South San Diego Bay, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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