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 : 8:34 pm (1.8 ft)
Next high tide : in 37m at 1:50 pm (5.5 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 - Apr 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:566.08:415.71:530.92:25-0.76:357:08Waxing Gibbous1Sun
2Mon8:446.29:166.12:400.23:04-0.76:347:09Full Moon2Mon
3Tue9:316.29:526.53:26-0.43:42-0.56:337:10Full Moon3Tue
4Wed10:185.910:296.64:11-0.84:20-0.26:317:10Full Moon4Wed
5Thu11:075.511:096.64:58-0.94:580.46:307:11Waning Gibbous5Thu
6Fri12:004.85:47-0.85:361.06:297:12Waning Gibbous6Fri
7Sat1:014.26:42-0.56:191.66:277:13Waning Gibbous7Sat
8Sun12:405.92:143.77:46-0.17:132.26:267:13Waning Gibbous8Sun
9Mon1:375.43:553.59:020.28:362.76:257:14Third Quarter9Mon
10Tue2:484.95:543.710:300.410:292.86:247:15Third Quarter10Tue
11Wed4:164.66:534.211:470.36:237:15Third Quarter11Wed
12Thu5:454.67:294.512:032.412:420.26:217:16Waning Crescent12Thu
13Fri6:494.87:584.91:021.91:230.26:207:17Waning Crescent13Fri
14Sat7:364.98:225.21:451.41:580.26:197:18Waning Crescent14Sat
15Sun8:165.08:455.42:211.02:280.36:187:18Waning Crescent15Sun
16Mon8:525.19:075.62:540.62:560.46:177:19Waning Crescent16Mon
17Tue9:255.09:315.73:260.33:240.66:157:20New Moon17Tue
18Wed9:594.99:565.83:570.13:500.86:147:20New Moon18Wed
19Thu10:324.710:215.84:28-0.14:141.16:137:21New Moon19Thu
20Fri11:084.410:465.75:00-0.14:371.56:127:22New Moon20Fri
21Sat11:474.111:125.55:330.04:581.86:117:23Waxing Crescent21Sat
22Sun12:333.76:100.25:192.16:107:23Waxing Crescent22Sun
23Mon1:303.56:550.45:442.56:097:24Waxing Crescent23Mon
24Tue12:175.12:423.37:520.56:272.86:087:25Waxing Crescent24Tue
25Wed1:134.84:103.59:040.68:283.16:067:25First Quarter25Wed
26Thu2:374.65:283.910:200.510:362.86:057:26First Quarter26Thu
27Fri4:124.56:154.411:240.311:532.26:047:27First Quarter27Fri
28Sat5:354.76:535.112:170.16:037:28Waxing Gibbous28Sat
29Sun6:425.17:305.712:501.41:03-0.16:027:28Waxing Gibbous29Sun
30Mon7:395.38:076.31:410.51:47-0.16:017:29Waxing Gibbous30Mon
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 5:12 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