Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in South San Diego Bay, CA.
Next low tide : 4:52 pm (2.1 ft)
Next high tide : in 5h 31m at 11:37 am (4.8 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Mar 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:576.18:114.612:531.91:53-0.86:155:45Waxing Gibbous1Mon
2Tue7:366.38:355.01:331.42:21-0.96:145:46Full Moon2Tue
3Wed8:156.49:015.42:120.82:50-0.96:125:47Full Moon3Wed
4Thu8:556.29:295.82:520.43:19-0.76:115:48Full Moon4Thu
5Fri9:365.810:006.03:320.03:47-0.26:105:49Full Moon5Fri
6Sat10:205.210:336.14:16-0.24:160.36:095:49Waning Gibbous6Sat
7Sun11:104.511:116.15:05-0.14:441.06:085:50Waning Gibbous7Sun
8Mon12:123.76:040.05:131.66:065:51Waning Gibbous8Mon
9Tue1:363.07:200.35:432.26:055:52Third Quarter9Tue
10Wed12:595.68:580.46:045:52Third Quarter10Wed
11Thu2:215.36:223.410:400.19:393.06:025:53Third Quarter11Thu
12Fri3:595.36:523.911:49-0.311:172.66:015:54Waning Crescent12Fri
13Sat5:215.67:194.312:37-0.66:005:55Waning Crescent13Sat
14Sun7:205.88:444.712:192.02:16-0.76:596:55Waning Crescent14Sun
15Mon8:086.09:095.12:081.42:49-0.76:576:56Waning Crescent15Mon
16Tue8:495.99:325.42:490.93:18-0.56:566:57New Moon16Tue
17Wed9:265.79:555.63:270.53:45-0.36:556:58New Moon17Wed
18Thu10:005.410:185.74:010.34:090.16:536:58New Moon18Thu
19Fri10:345.010:415.74:350.24:320.66:526:59New Moon19Fri
20Sat11:084.511:045.65:070.24:521.06:517:00Waxing Crescent20Sat
21Sun11:444.011:285.45:410.35:081.56:507:00Waxing Crescent21Sun
22Mon12:253.56:190.55:181.96:487:01Waxing Crescent22Mon
23Tue1:203.07:060.85:182.26:477:02Waxing Crescent23Tue
24Wed12:235.02:462.68:131.14:562.56:467:03First Quarter24Wed
25Thu1:094.79:521.26:447:03First Quarter25Thu
26Fri2:384.48:203.411:260.910:213.36:437:04First Quarter26Fri
27Sat4:254.47:423.712:210.56:427:05First Quarter27Sat
28Sun5:464.87:454.112:590.16:407:05Waxing Gibbous28Sun
29Mon6:445.28:014.612:502.21:33-0.26:397:06Waxing Gibbous29Mon
30Tue7:325.58:235.21:341.52:05-0.36:387:07Waxing Gibbous30Tue
31Wed8:165.78:495.72:160.72:37-0.36:367:08Waxing Gibbous31Wed
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 2:14 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 spring phase. Tonight's moon is 95% 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 maximum.

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 Gibbous (95% illuminated). This places South San Diego Bay, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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