Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide : in 5h 49m at 3:33 am (-1.7 ft)
Next high tide : 10:02 am (4.4 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Apr 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:315.65:253.29:290.08:073.06:367:08First Quarter1Sun
2Mon2:535.26:453.711:040.010:383.06:357:09First Quarter2Mon
3Tue4:335.07:194.212:13-0.16:337:09First Quarter3Tue
4Wed6:015.07:464.612:132.51:02-0.26:327:10Waxing Gibbous4Wed
5Thu7:035.28:115.01:121.81:41-0.26:317:11Waxing Gibbous5Thu
6Fri7:515.38:345.41:571.22:13-0.16:297:11Waxing Gibbous6Fri
7Sat8:335.28:565.72:360.72:420.16:287:12Waxing Gibbous7Sat
8Sun9:105.19:195.93:110.23:080.46:277:13Full Moon8Sun
9Mon9:454.99:416.03:440.03:330.76:267:14Full Moon9Mon
10Tue10:194.610:046.04:16-0.23:561.16:247:14Full Moon10Tue
11Wed10:544.210:285.94:48-0.24:171.56:237:15Full Moon11Wed
12Thu11:313.910:515.75:21-0.14:341.86:227:16Waning Gibbous12Thu
13Fri12:143.55:570.14:472.26:217:16Waning Gibbous13Fri
14Sat1:093.16:390.44:532.56:197:17Waning Gibbous14Sat
15Sun2:272.97:350.64:502.76:187:18Waning Gibbous15Sun
16Mon12:224.98:480.86:177:19Third Quarter16Mon
17Tue1:334.67:163.410:090.89:163.46:167:19Third Quarter17Tue
18Wed3:164.46:403.811:140.611:202.96:157:20Third Quarter18Wed
19Thu4:504.56:524.312:010.36:147:21Third Quarter19Thu
20Fri6:034.77:144.912:202.212:410.26:127:21Waning Crescent20Fri
21Sat7:015.07:405.61:081.31:180.16:117:22Waning Crescent21Sat
22Sun7:535.28:116.21:530.41:540.26:107:23Waning Crescent22Sun
23Mon8:435.28:436.82:38-0.42:300.46:097:24New Moon23Mon
24Tue9:325.19:187.13:23-1.13:060.76:087:24New Moon24Tue
25Wed10:224.89:567.34:09-1.53:421.16:077:25New Moon25Wed
26Thu11:154.410:367.24:56-1.64:191.66:067:26Waxing Crescent26Thu
27Fri12:144.05:47-1.54:582.06:057:26Waxing Crescent27Fri
28Sat1:253.66:44-1.15:422.56:047:27Waxing Crescent28Sat
29Sun12:126.32:513.57:50-0.66:472.96:037:28Waxing Crescent29Sun
30Mon1:165.64:343.79:03-0.28:363.16:027:29First Quarter30Mon
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 6:47 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 spring phase. Tonight's moon is 4% 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 Crescent (4% 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