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 (tomorrow) : 7:30 am (1.9 ft)
Next high tide (tomorrow) : in 5h 23m at 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 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:574.86:22-1.16:062.25:448:00Waning Gibbous1Sat
2Sun12:106.31:524.97:12-0.77:162.35:448:00Waning Gibbous2Sun
3Mon1:095.62:505.18:04-0.18:392.35:458:00Third Quarter3Mon
4Tue2:184.83:515.39:000.510:122.05:458:00Third Quarter4Tue
5Wed3:384.24:525.610:001.011:401.55:467:59Third Quarter5Wed
6Thu5:143.85:485.911:001.45:467:59Third Quarter6Thu
7Fri6:433.86:366.312:480.911:57 AM1.75:477:59Waning Crescent7Fri
8Sat7:503.97:186.51:420.312:481.95:477:59Waning Crescent8Sat
9Sun8:424.17:576.72:27-0.11:342.05:487:59Waning Crescent9Sun
10Mon9:244.28:336.83:07-0.42:172.05:487:58Waning Crescent10Mon
11Tue10:014.39:076.73:42-0.52:562.15:497:58New Moon11Tue
12Wed10:344.39:406.64:14-0.63:332.25:497:58New Moon12Wed
13Thu11:064.410:136.44:45-0.54:072.25:507:58New Moon13Thu
14Fri11:404.410:456.25:16-0.44:412.35:517:57New Moon14Fri
15Sat12:154.45:47-0.25:152.55:517:57Waxing Crescent15Sat
16Sun12:524.46:180.15:542.65:527:56Waxing Crescent16Sun
17Mon1:314.46:500.56:412.75:527:56Waxing Crescent17Mon
18Tue12:304.92:134.57:230.97:472.85:537:55Waxing Crescent18Tue
19Wed1:194.32:594.78:011.29:112.75:547:55First Quarter19Wed
20Thu2:283.83:504.98:481.610:402.35:547:54First Quarter20Thu
21Fri3:583.54:465.39:471.911:521.65:557:54First Quarter21Fri
22Sat5:353.55:405.810:542.15:557:53First Quarter22Sat
23Sun6:523.76:296.312:480.911:55 AM2.15:567:53Waxing Gibbous23Sun
24Mon7:514.17:176.91:370.112:512.05:577:52Waxing Gibbous24Mon
25Tue8:404.48:037.32:23-0.61:431.95:577:52Waxing Gibbous25Tue
26Wed9:254.88:497.63:07-1.12:341.75:587:51Full Moon26Wed
27Thu10:085.09:357.73:51-1.43:241.55:597:50Full Moon27Thu
28Fri10:515.210:217.54:33-1.54:131.45:597:50Full Moon28Fri
29Sat11:355.311:097.05:15-1.35:031.46:007:49Waning Gibbous29Sat
30Sun12:215.45:57-0.95:581.56:017:48Waning Gibbous30Sun
31Mon12:006.31:115.56:41-0.37:001.76:017:47Waning Gibbous31Mon
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 4:51 am — 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