Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide : in 5h 22m at 8:34 pm (1.8 ft)
Next high tide (tomorrow) : 2:13 am (3.6 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 - Jul 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:524.610:067.24:30-1.43:571.95:448:00Full Moon1Sun
2Mon11:374.610:466.85:11-1.24:412.15:458:00Full Moon2Mon
3Tue12:224.55:51-0.85:252.35:458:00Waning Gibbous3Tue
4Wed1:094.56:31-0.46:132.55:468:00Waning Gibbous4Wed
5Thu12:095.61:574.57:120.17:112.75:468:00Waning Gibbous5Thu
6Fri12:564.92:454.57:540.68:232.85:477:59Third Quarter6Fri
7Sat1:494.33:374.68:381.19:502.75:477:59Third Quarter7Sat
8Sun2:563.84:304.89:291.511:202.35:487:59Third Quarter8Sun
9Mon4:233.45:215.110:241.85:487:59Third Quarter9Mon
10Tue5:593.46:055.512:251.811:20 AM2.05:497:58Waning Crescent10Tue
11Wed7:103.56:455.81:121.212:102.15:497:58Waning Crescent11Wed
12Thu8:013.87:226.21:520.712:552.15:507:58Waning Crescent12Thu
13Fri8:434.07:586.52:290.21:382.15:517:58Waning Crescent13Fri
14Sat9:204.28:346.73:05-0.22:192.15:517:57New Moon14Sat
15Sun9:554.49:106.93:39-0.62:592.05:527:57New Moon15Sun
16Mon10:314.69:476.94:14-0.83:382.05:527:56New Moon16Mon
17Tue11:084.710:246.84:48-0.94:172.05:537:56New Moon17Tue
18Wed11:474.811:056.55:23-0.84:592.05:547:55Waxing Crescent18Wed
19Thu12:294.96:01-0.65:482.15:547:55Waxing Crescent19Thu
20Fri1:155.06:40-0.26:472.15:557:54Waxing Crescent20Fri
21Sat12:425.42:055.27:240.38:012.15:567:54Waxing Crescent21Sat
22Sun1:464.73:005.48:130.89:291.95:567:53First Quarter22Sun
23Mon3:054.14:005.79:121.310:591.45:577:53First Quarter23Mon
24Tue4:413.75:046.010:191.75:577:52First Quarter24Tue
25Wed6:203.86:056.412:160.811:28 AM1.95:587:51Waxing Gibbous25Wed
26Thu7:344.16:586.81:170.112:302.05:597:51Waxing Gibbous26Thu
27Fri8:294.47:477.12:09-0.41:262.05:597:50Waxing Gibbous27Fri
28Sat9:154.68:327.22:54-0.82:171.96:007:49Full Moon28Sat
29Sun9:554.89:147.23:36-1.03:041.86:017:49Full Moon29Sun
30Mon10:324.99:537.04:13-0.93:471.86:017:48Full Moon30Mon
31Tue11:074.910:306.64:48-0.84:281.86:027:47Full Moon31Tue
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 11:23 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