Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in South San Diego Bay, CA.
Next low tide : 7:12 am (2.7 ft)
Next high tide : in 1h 58m at 2:49 am (3.2 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 6:15 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Dec 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:126.93:592.45:31-0.96:324:42Waning Gibbous1Tue
2Wed12:144.311:01 AM6.24:532.76:21-0.36:334:42Waning Gibbous2Wed
3Thu1:154.311:56 AM5.46:013.07:130.26:344:42Third Quarter3Thu
4Fri2:174.412:594.67:293.08:070.76:354:42Third Quarter4Fri
5Sat3:194.72:164.09:152.89:031.26:364:42Third Quarter5Sat
6Sun4:125.03:523.610:482.39:561.56:364:42Third Quarter6Sun
7Mon4:535.35:223.611:461.610:431.86:374:42Waning Crescent7Mon
8Tue5:275.66:263.712:291.06:384:42Waning Crescent8Tue
9Wed5:596.07:153.81:060.56:394:43Waning Crescent9Wed
10Thu6:306.27:563.912:042.11:400.06:394:43Waning Crescent10Thu
11Fri7:026.58:324.012:412.22:14-0.36:404:43Waning Crescent11Fri
12Sat7:346.69:064.11:172.22:46-0.66:414:43New Moon12Sat
13Sun8:066.79:414.11:522.33:19-0.76:424:43New Moon13Sun
14Mon8:386.710:164.12:252.43:51-0.76:424:44New Moon14Mon
15Tue9:096.610:544.12:572.44:24-0.76:434:44New Moon15Tue
16Wed9:426.411:354.13:312.54:58-0.56:444:44Waxing Crescent16Wed
17Thu10:186.04:102.65:34-0.36:444:45Waxing Crescent17Thu
18Fri12:184.211:00 AM5.55:012.76:120.06:454:45Waxing Crescent18Fri
19Sat1:034.411:55 AM4.96:112.76:550.46:454:46First Quarter19Sat
20Sun1:514.71:084.27:432.67:450.96:464:46First Quarter20Sun
21Mon2:445.12:403.79:202.08:431.36:464:46First Quarter21Mon
22Tue3:395.64:233.510:421.29:461.66:474:47First Quarter22Tue
23Wed4:346.25:523.611:460.310:481.86:474:48Waxing Gibbous23Wed
24Thu5:266.87:003.912:42-0.56:484:48Waxing Gibbous24Thu
25Fri6:157.27:554.11:32-1.26:484:49Waxing Gibbous25Fri
26Sat7:037.68:434.312:391.92:19-1.66:494:49Full Moon26Sat
27Sun7:497.79:274.51:311.93:03-1.86:494:50Full Moon27Sun
28Mon8:347.610:104.52:211.93:45-1.76:494:51Full Moon28Mon
29Tue9:177.310:534.63:081.94:25-1.46:504:51Full Moon29Tue
30Wed9:596.711:364.63:542.05:03-1.06:504:52Waning Gibbous30Wed
31Thu10:426.04:432.15:40-0.46:504:53Waning Gibbous31Thu
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 5:00 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 neap phase. Tonight's moon is 47% 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 near their weekly minimum.

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 First Quarter (47% illuminated). This places South San Diego Bay, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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