Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Sunday, July 19, 2026
The tide is currently rising in South San Diego Bay, CA.
Next low tide : 7:34 am (0.7 ft)
Next high tide : in 3h 12m at 1:02 am (5.0 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Jul 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:543.98:016.52:380.01:412.25:458:00Waxing Gibbous1Mon
2Tue9:294.18:376.73:12-0.32:212.25:458:00Full Moon2Tue
3Wed10:034.39:126.83:45-0.63:002.15:458:00Full Moon3Wed
4Thu10:364.49:476.84:18-0.83:382.15:468:00Full Moon4Thu
5Fri11:114.510:226.64:50-0.84:162.15:467:59Full Moon5Fri
6Sat11:484.711:006.35:23-0.74:572.15:477:59Waning Gibbous6Sat
7Sun12:284.85:57-0.55:442.15:477:59Waning Gibbous7Sun
8Mon1:115.06:34-0.26:412.25:487:59Waning Gibbous8Mon
9Tue12:335.31:585.27:140.37:532.15:487:59Waning Gibbous9Tue
10Wed1:354.62:495.47:590.89:191.95:497:58Third Quarter10Wed
11Thu2:514.03:475.78:531.310:491.45:507:58Third Quarter11Thu
12Fri4:273.64:506.19:591.75:507:58Third Quarter12Fri
13Sat6:083.65:526.512:070.711:10 AM2.05:517:57Waning Crescent13Sat
14Sun7:263.96:476.91:090.012:162.05:517:57Waning Crescent14Sun
15Mon8:244.27:387.22:02-0.61:152.05:527:57Waning Crescent15Mon
16Tue9:114.58:267.42:50-1.02:091.95:537:56New Moon16Tue
17Wed9:534.79:107.33:33-1.22:591.85:537:56New Moon17Wed
18Thu10:314.99:517.14:12-1.23:451.75:547:55New Moon18Thu
19Fri11:095.010:316.74:48-1.04:291.75:547:55New Moon19Fri
20Sat11:455.011:106.25:23-0.65:111.95:557:54Waxing Crescent20Sat
21Sun12:235.05:57-0.25:552.05:567:54Waxing Crescent21Sun
22Mon1:014.96:290.46:442.25:567:53Waxing Crescent22Mon
23Tue12:314.91:414.97:020.97:432.45:577:52Waxing Crescent23Tue
24Wed1:194.22:264.97:361.58:582.45:587:52First Quarter24Wed
25Thu2:203.63:164.98:152.010:322.25:587:51First Quarter25Thu
26Fri3:463.24:165.19:102.411:581.85:597:50First Quarter26Fri
27Sat5:563.15:195.310:262.66:007:50First Quarter27Sat
28Sun7:193.46:125.712:541.211:37 AM2.76:007:49Waxing Gibbous28Sun
29Mon8:023.76:586.01:350.712:332.66:017:48Waxing Gibbous29Mon
30Tue8:344.17:396.42:110.21:212.46:027:48Waxing Gibbous30Tue
31Wed9:044.48:176.72:45-0.22:052.16:027:47Waxing 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 4:18 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 24% 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 Waxing Crescent (24% 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