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 4h 41m 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 - Jan 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:145.56:043.612:111.06:504:53Waning Crescent1Mon
2Tue5:526.06:583.912:520.36:504:54Waning Crescent2Tue
3Wed6:296.47:444.112:031.81:32-0.46:514:55Waning Crescent3Wed
4Thu7:076.98:274.312:461.82:12-1.06:514:55Waning Crescent4Thu
5Fri7:467.29:104.51:291.72:52-1.46:514:56New Moon5Fri
6Sat8:267.49:524.62:121.73:32-1.66:514:57New Moon6Sat
7Sun9:087.310:374.62:561.74:13-1.66:514:58New Moon7Sun
8Mon9:517.111:254.73:421.84:56-1.46:514:59Waxing Crescent8Mon
9Tue10:396.54:331.95:41-1.06:515:00Waxing Crescent9Tue
10Wed12:164.711:33 AM5.85:332.16:29-0.46:515:00Waxing Crescent10Wed
11Thu1:114.812:355.06:482.27:210.26:515:01First Quarter11Thu
12Fri2:095.01:504.28:182.08:190.86:515:02First Quarter12Fri
13Sat3:115.33:253.69:561.69:231.36:515:03First Quarter13Sat
14Sun4:145.65:113.511:190.910:271.66:515:04First Quarter14Sun
15Mon5:106.06:313.712:210.36:505:05Waxing Gibbous15Mon
16Tue5:596.37:293.91:11-0.36:505:06Waxing Gibbous16Tue
17Wed6:416.58:134.112:171.81:53-0.76:505:07Waxing Gibbous17Wed
18Thu7:216.78:504.21:031.92:30-0.96:505:08Full Moon18Thu
19Fri7:576.79:234.31:461.93:03-1.06:495:09Full Moon19Fri
20Sat8:316.69:544.32:241.93:35-0.96:495:09Full Moon20Sat
21Sun9:046.410:254.32:591.94:05-0.86:495:10Full Moon21Sun
22Mon9:366.210:574.33:321.94:35-0.56:485:11Waning Gibbous22Mon
23Tue10:075.811:314.24:052.05:04-0.26:485:12Waning Gibbous23Tue
24Wed10:405.34:402.25:330.26:475:13Waning Gibbous24Wed
25Thu12:064.211:15 AM4.85:212.36:030.66:475:14Waning Gibbous25Thu
26Fri12:454.211:56 AM4.26:152.46:351.16:465:15Waning Gibbous26Fri
27Sat1:284.312:553.67:322.47:131.56:465:16Third Quarter27Sat
28Sun2:194.52:233.19:102.28:081.96:455:17Third Quarter28Sun
29Mon3:184.74:173.010:371.69:252.16:455:18Third Quarter29Mon
30Tue4:195.15:493.211:390.910:372.26:445:19Third Quarter30Tue
31Wed5:135.66:483.612:280.26:435:20Waning Crescent31Wed
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