Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in South San Diego Bay, CA.
Next low tide : 7:12 am (2.7 ft)
Next high tide : in 19m at 2:49 am (3.2 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 6:15 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Oct 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:487.29:305.72:380.53:22-0.75:425:33Full Moon1Thu
2Fri9:257.310:225.13:130.94:10-0.75:435:32Waning Gibbous2Fri
3Sat10:047.211:204.53:471.55:02-0.55:445:30Waning Gibbous3Sat
4Sun10:496.84:242.16:04-0.15:445:29Waning Gibbous4Sun
5Mon12:324.011:43 AM6.35:052.77:180.35:455:28Third Quarter5Mon
6Tue2:113.712:525.86:113.28:460.55:465:27Third Quarter6Tue
7Wed4:273.92:195.48:133.510:110.55:465:25Third Quarter7Wed
8Thu5:304.43:555.210:133.111:110.55:475:24Third Quarter8Thu
9Fri6:054.95:125.311:262.511:550.45:485:23Waning Crescent9Fri
10Sat6:335.36:075.412:161.95:485:22Waning Crescent10Sat
11Sun6:575.66:515.412:300.512:561.45:495:20Waning Crescent11Sun
12Mon7:205.97:295.41:010.71:310.95:505:19Waning Crescent12Mon
13Tue7:426.28:045.31:290.92:040.65:515:18New Moon13Tue
14Wed8:056.38:385.11:551.12:360.35:515:17New Moon14Wed
15Thu8:286.49:124.92:201.43:070.25:525:15New Moon15Thu
16Fri8:526.49:474.62:431.73:390.25:535:14New Moon16Fri
17Sat9:166.310:254.23:042.04:120.35:545:13Waxing Crescent17Sat
18Sun9:416.111:093.93:232.34:490.55:545:12Waxing Crescent18Sun
19Mon10:065.93:372.65:320.75:555:11Waxing Crescent19Mon
20Tue12:073.610:35 AM5.63:502.96:271.05:565:10Waxing Crescent20Tue
21Wed1:253.411:20 AM5.34:033.27:381.15:575:09First Quarter21Wed
22Thu12:414.98:531.05:585:08First Quarter22Thu
23Fri4:394.02:224.78:483.69:570.95:585:06First Quarter23Fri
24Sat5:024.53:534.810:223.010:460.75:595:05First Quarter24Sat
25Sun5:295.15:055.111:202.111:290.66:005:04Waxing Gibbous25Sun
26Mon5:585.86:045.312:081.26:015:03Waxing Gibbous26Mon
27Tue6:306.56:575.512:090.612:550.26:025:02Waxing Gibbous27Tue
28Wed7:047.17:485.512:480.71:41-0.56:025:01Full Moon28Wed
29Thu7:417.58:385.41:260.92:27-1.16:035:00Full Moon29Thu
30Fri8:197.89:295.12:051.23:14-1.46:044:59Full Moon30Fri
31Sat8:597.810:224.72:441.64:02-1.36:054:59Full Moon31Sat
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 5:00 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 neap phase. Tonight's moon is 47% 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 minimum.

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 First Quarter (47% illuminated). This places South San Diego Bay, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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