Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Monday, July 20, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide : in 5h 39m at 8:12 am (1.4 ft)
Next high tide : 3:04 pm (5.3 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (43% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Apr 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:445.57:134.712:41-0.65:366:08Waxing Gibbous1Mon
2Tue6:365.97:385.312:371.61:17-0.95:346:09Waxing Gibbous2Tue
3Wed7:246.28:075.81:230.81:53-0.95:336:10Waxing Gibbous3Wed
4Thu8:116.28:386.32:070.02:27-0.75:326:10Full Moon4Thu
5Fri8:586.09:106.62:52-0.63:01-0.25:306:11Full Moon5Fri
6Sat9:465.59:456.73:38-0.93:340.35:296:12Full Moon6Sat
7Sun10:374.810:226.64:26-1.04:061.05:286:12Waning Gibbous7Sun
8Mon11:364.111:046.35:18-0.84:381.75:276:13Waning Gibbous8Mon
9Tue12:513.46:20-0.55:112.45:256:14Waning Gibbous9Tue
10Wed2:493.17:36-0.15:572.95:246:14Third Quarter10Wed
11Thu12:585.35:393.59:110.18:183.35:236:15Third Quarter11Thu
12Fri2:264.86:164.010:390.110:363.15:226:16Third Quarter12Fri
13Sat4:094.76:424.411:38-0.111:472.55:206:17Third Quarter13Sat
14Sun5:264.97:054.712:21-0.15:196:17Waning Crescent14Sun
15Mon6:195.07:255.012:331.912:54-0.15:186:18Waning Crescent15Mon
16Tue7:015.17:445.31:111.31:220.05:176:19Waning Crescent16Tue
17Wed7:385.18:025.51:440.81:480.25:166:19Waning Crescent17Wed
18Thu8:125.08:225.72:160.42:120.55:156:20New Moon18Thu
19Fri8:464.88:435.92:460.12:350.85:136:21New Moon19Fri
20Sat9:204.69:055.93:17-0.12:571.25:126:22New Moon20Sat
21Sun9:554.29:275.93:48-0.13:161.65:116:22New Moon21Sun
22Mon10:333.99:485.84:20-0.13:311.95:106:23Waxing Crescent22Mon
23Tue11:193.510:115.64:560.03:422.35:096:24Waxing Crescent23Tue
24Wed12:183.15:400.23:502.65:086:24Waxing Crescent24Wed
25Thu1:443.06:370.43:492.85:076:25Waxing Crescent25Thu
26Fri7:530.55:066:26First Quarter26Fri
27Sat12:374.85:473.69:140.48:463.55:056:27First Quarter27Sat
28Sun3:274.66:404.111:200.211:322.96:047:27First Quarter28Sun
29Mon5:034.76:594.712:10-0.16:037:28First Quarter29Mon
30Tue6:165.07:255.312:322.012:52-0.26:027:29Waxing Gibbous30Tue
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 11:38 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 43% 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 (43% 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