Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide : in 4h 37m at 1:48 am (-0.6 ft)
Next high tide : 8:31 am (4.1 ft)
Sunset today : 7:40 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Nov 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:155.46:044.712:211.86:064:58Waning Crescent1Sun
2Mon6:345.76:474.712:051.112:551.26:074:57Waning Crescent2Mon
3Tue6:556.17:264.712:341.21:280.76:074:56Waning Crescent3Tue
4Wed7:186.38:034.71:021.42:000.36:084:55New Moon4Wed
5Thu7:426.58:394.61:291.62:320.06:094:54New Moon5Thu
6Fri8:076.69:164.41:551.93:05-0.26:104:53New Moon6Fri
7Sat8:336.69:554.22:192.13:39-0.36:114:53New Moon7Sat
8Sun9:006.610:393.92:422.44:15-0.26:124:52Waxing Crescent8Sun
9Mon9:286.411:323.73:042.64:55-0.16:134:51Waxing Crescent9Mon
10Tue10:006.23:272.95:430.16:144:51Waxing Crescent10Tue
11Wed12:373.610:41 AM5.93:563.16:390.36:144:50Waxing Crescent11Wed
12Thu1:523.711:42 AM5.54:533.47:430.46:154:49First Quarter12Thu
13Fri3:054.01:095.07:203.58:470.56:164:49First Quarter13Fri
14Sat3:594.52:444.79:233.19:460.66:174:48First Quarter14Sat
15Sun4:395.24:154.610:422.210:370.76:184:47First Quarter15Sun
16Mon5:165.95:304.711:401.211:230.96:194:47Waxing Gibbous16Mon
17Tue5:526.56:334.812:320.26:204:46Waxing Gibbous17Tue
18Wed6:297.17:304.812:051.11:21-0.66:214:46Waxing Gibbous18Wed
19Thu7:087.68:224.712:471.42:08-1.26:224:45Full Moon19Thu
20Fri7:477.89:134.61:291.62:54-1.56:234:45Full Moon20Fri
21Sat8:277.810:044.42:101.93:40-1.56:234:45Full Moon21Sat
22Sun9:077.510:584.12:502.24:26-1.36:244:44Waning Gibbous22Sun
23Mon9:497.011:584.03:312.55:14-0.86:254:44Waning Gibbous23Mon
24Tue10:326.44:142.96:04-0.36:264:44Waning Gibbous24Tue
25Wed1:053.911:20 AM5.75:073.26:570.16:274:43Waning Gibbous25Wed
26Thu2:164.012:175.06:263.47:530.66:284:43Third Quarter26Thu
27Fri3:254.21:274.48:143.48:491.06:294:43Third Quarter27Fri
28Sat4:164.62:503.910:043.09:411.26:304:43Third Quarter28Sat
29Sun4:504.94:223.711:142.310:261.56:314:42Third Quarter29Sun
30Mon5:175.35:363.711:591.611:061.76:314:42Waning Crescent30Mon
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 21% 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 Waning Crescent (21% 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