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 2h 57m 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 - Nov 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:414.64:214.411:062.911:091.06:064:58Third Quarter1Wed
2Thu6:035.05:234.611:502.411:460.96:074:57Waning Crescent2Thu
3Fri6:245.36:114.812:251.86:074:56Waning Crescent3Fri
4Sat6:455.76:515.012:190.912:591.26:084:55Waning Crescent4Sat
5Sun7:096.17:295.112:500.91:330.76:094:54Waning Crescent5Sun
6Mon7:356.48:075.11:201.02:060.36:104:53New Moon6Mon
7Tue8:026.68:445.01:501.12:40-0.16:114:53New Moon7Tue
8Wed8:306.79:234.92:191.43:15-0.36:124:52New Moon8Wed
9Thu8:596.810:064.62:471.63:52-0.46:134:51New Moon9Thu
10Fri9:306.710:544.43:161.94:32-0.46:144:50Waxing Crescent10Fri
11Sat10:066.511:534.13:482.35:19-0.26:154:50Waxing Crescent11Sat
12Sun10:486.24:252.76:150.06:154:49Waxing Crescent12Sun
13Mon1:034.011:45 AM5.75:213.07:210.26:164:49First Quarter13Mon
14Tue2:224.11:025.27:023.38:330.46:174:48First Quarter14Tue
15Wed3:424.52:324.99:003.19:430.46:184:47First Quarter15Wed
16Thu4:415.04:034.810:302.410:410.46:194:47First Quarter16Thu
17Fri5:265.65:204.911:341.611:310.56:204:46Waxing Gibbous17Fri
18Sat6:046.26:225.112:270.76:214:46Waxing Gibbous18Sat
19Sun6:416.77:165.112:160.61:150.06:224:45Waxing Gibbous19Sun
20Mon7:177.18:055.112:570.81:59-0.56:234:45Full Moon20Mon
21Tue7:527.38:515.01:371.02:42-0.86:244:45Full Moon21Tue
22Wed8:277.39:364.82:151.43:23-0.96:244:44Full Moon22Wed
23Thu9:017.110:224.52:511.74:03-0.86:254:44Full Moon23Thu
24Fri9:366.711:114.23:262.14:43-0.56:264:44Waning Gibbous24Fri
25Sat10:106.24:002.55:26-0.16:274:43Waning Gibbous25Sat
26Sun12:064.010:47 AM5.74:352.96:120.36:284:43Waning Gibbous26Sun
27Mon1:093.911:29 AM5.25:213.27:050.66:294:43Waning Gibbous27Mon
28Tue2:243.912:254.66:433.58:030.96:304:43Third Quarter28Tue
29Wed3:444.11:394.28:373.49:041.16:314:42Third Quarter29Wed
30Thu4:344.53:073.910:183.09:591.26:314:42Third Quarter30Thu
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