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 1h 36m at 6:57 am (1.4 ft)
Next high tide : 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 - Oct 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:015.711:354.74:501.45:280.96:426:33Waxing Crescent1Mon
2Tue11:255.65:091.86:051.16:436:32Waxing Crescent2Tue
3Wed12:174.211:52 AM5.55:272.36:521.36:436:31Waxing Crescent3Wed
4Thu1:143.812:275.35:442.67:581.46:446:30Waxing Crescent4Thu
5Fri2:343.51:255.16:083.09:261.46:456:28First Quarter5Fri
6Sat4:353.52:545.07:433.410:511.16:456:27First Quarter6Sat
7Sun6:134.04:295.110:383.411:540.66:466:26First Quarter7Sun
8Mon6:484.55:465.511:562.86:476:24Waxing Gibbous8Mon
9Tue7:195.16:476.012:430.212:512.16:486:23Waxing Gibbous9Tue
10Wed7:525.77:406.41:26-0.21:391.36:486:22Waxing Gibbous10Wed
11Thu8:256.28:296.62:07-0.32:260.66:496:21Waxing Gibbous11Thu
12Fri9:006.79:176.52:47-0.33:12-0.16:506:19Full Moon12Fri
13Sat9:357.010:056.23:250.03:58-0.56:506:18Full Moon13Sat
14Sun10:127.210:545.74:020.44:45-0.66:516:17Full Moon14Sun
15Mon10:507.111:485.14:390.95:34-0.56:526:16Waning Gibbous15Mon
16Tue11:316.85:171.66:28-0.26:536:15Waning Gibbous16Tue
17Wed12:504.512:176.35:572.37:300.26:536:13Waning Gibbous17Wed
18Thu2:074.01:125.86:472.98:450.66:546:12Third Quarter18Thu
19Fri3:583.92:215.28:113.410:120.76:556:11Third Quarter19Fri
20Sat5:574.23:484.910:143.411:290.76:566:10Third Quarter20Sat
21Sun6:474.65:204.911:543.06:576:09Third Quarter21Sun
22Mon7:185.06:275.012:230.612:492.56:576:08Waning Crescent22Mon
23Tue7:435.37:155.21:030.61:292.06:586:07Waning Crescent23Tue
24Wed8:055.67:555.31:360.62:041.56:596:06Waning Crescent24Wed
25Thu8:265.88:315.42:060.62:361.07:006:05Waning Crescent25Thu
26Fri8:486.19:055.32:340.83:070.77:016:04New Moon26Fri
27Sat9:116.29:395.23:011.03:380.47:016:03New Moon27Sat
28Sun8:356.39:135.02:261.23:100.26:025:02New Moon28Sun
29Mon8:596.39:494.72:511.53:420.26:035:01New Moon29Mon
30Tue9:246.210:284.43:131.94:150.26:045:00Waxing Crescent30Tue
31Wed9:496.111:154.03:332.24:520.36:054:59Waxing Crescent31Wed
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 10:23 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 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