Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide (tomorrow) : in 7h 17m at 1:43 am (0.6 ft)
Next high tide (tomorrow) : 8:35 am (3.5 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Jul 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:043.87:336.32:000.61:062.05:458:00Waning Crescent1Sat
2Sun8:474.08:086.62:370.11:472.05:458:00Waning Crescent2Sun
3Mon9:274.28:436.83:13-0.42:262.05:458:00New Moon3Mon
4Tue10:054.39:196.93:49-0.73:052.15:468:00New Moon4Tue
5Wed10:444.49:557.04:25-0.93:442.15:467:59New Moon5Wed
6Thu11:254.510:346.85:02-1.04:252.15:477:59New Moon6Thu
7Fri12:084.65:40-0.95:092.25:477:59Waxing Crescent7Fri
8Sat12:554.76:20-0.76:022.35:487:59Waxing Crescent8Sat
9Sun12:046.01:454.87:04-0.37:082.45:497:59Waxing Crescent9Sun
10Mon1:015.42:375.07:520.28:292.35:497:58First Quarter10Mon
11Tue2:094.73:345.38:450.710:002.05:507:58First Quarter11Tue
12Wed3:304.14:345.79:451.111:271.45:507:58First Quarter12Wed
13Thu5:073.85:336.110:491.55:517:57First Quarter13Thu
14Fri6:373.96:266.612:370.711:50 AM1.75:517:57Waxing Gibbous14Fri
15Sat7:484.17:156.91:340.012:471.85:527:57Waxing Gibbous15Sat
16Sun8:434.38:017.22:25-0.51:391.95:537:56Waxing Gibbous16Sun
17Mon9:304.58:437.23:10-0.92:281.95:537:56Full Moon17Mon
18Tue10:114.69:247.23:50-1.03:141.95:547:55Full Moon18Tue
19Wed10:494.710:026.94:28-1.03:562.05:547:55Full Moon19Wed
20Thu11:264.710:396.65:04-0.84:352.15:557:54Full Moon20Thu
21Fri12:034.65:38-0.55:152.25:567:54Waning Gibbous21Fri
22Sat12:414.66:12-0.15:562.45:567:53Waning Gibbous22Sat
23Sun1:214.66:450.46:442.65:577:52Waning Gibbous23Sun
24Mon12:335.02:024.67:200.97:442.75:587:52Waning Gibbous24Mon
25Tue1:214.42:474.67:571.49:022.75:587:51Third Quarter25Tue
26Wed2:223.83:394.88:411.810:352.45:597:50Third Quarter26Wed
27Thu3:463.44:365.09:372.211:541.96:007:50Third Quarter27Thu
28Fri5:333.35:315.310:442.46:007:49Third Quarter28Fri
29Sat6:563.56:195.712:491.311:45 AM2.46:017:48Waning Crescent29Sat
30Sun7:493.87:036.21:320.712:382.46:027:47Waning Crescent30Sun
31Mon8:304.17:446.62:120.21:252.26:027:47Waning Crescent31Mon
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 5:09 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 72% 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 Waxing Gibbous (72% 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