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 19m at 1:02 am (5.0 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:54 am
Moon phase : First Quarter (33% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Jun 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:004.58:327.52:49-1.02:111.35:417:51Full Moon1Sat
2Sun9:544.49:127.63:37-1.52:541.65:417:51Full Moon2Sun
3Mon10:484.39:547.54:25-1.83:362.05:417:52Full Moon3Mon
4Tue11:454.110:367.25:13-1.74:192.35:407:52Full Moon4Tue
5Wed12:463.96:02-1.45:042.65:407:53Waning Gibbous5Wed
6Thu1:533.86:53-0.95:563.05:407:53Waning Gibbous6Thu
7Fri12:116.03:023.97:47-0.47:083.25:407:54Waning Gibbous7Fri
8Sat1:065.34:114.18:430.08:443.35:407:54Third Quarter8Sat
9Sun2:114.75:064.49:390.510:303.05:407:55Third Quarter9Sun
10Mon3:264.15:454.810:310.811:532.45:407:55Third Quarter10Mon
11Tue4:523.86:155.111:171.15:407:56Third Quarter11Tue
12Wed6:123.76:415.512:471.811:57 AM1.45:407:56Waning Crescent12Wed
13Thu7:153.77:085.81:291.212:331.65:407:57Waning Crescent13Thu
14Fri8:073.87:366.12:060.61:081.95:407:57Waning Crescent14Fri
15Sat8:523.88:066.42:420.11:422.15:407:57Waning Crescent15Sat
16Sun9:343.98:376.53:17-0.32:172.25:407:58New Moon16Sun
17Mon10:133.99:086.63:52-0.52:502.45:407:58New Moon17Mon
18Tue10:533.99:406.64:27-0.73:222.55:407:58New Moon18Tue
19Wed11:353.810:136.65:03-0.83:552.75:407:58New Moon19Wed
20Thu12:203.85:40-0.84:302.85:417:59Waxing Crescent20Thu
21Fri1:083.96:20-0.75:112.95:417:59Waxing Crescent21Fri
22Sat1:574.07:02-0.56:093.05:417:59Waxing Crescent22Sat
23Sun12:185.72:464.37:48-0.27:333.15:417:59Waxing Crescent23Sun
24Mon1:205.23:344.68:360.29:102.85:427:59First Quarter24Mon
25Tue2:354.64:235.19:270.610:432.15:428:00First Quarter25Tue
26Wed4:034.15:115.710:211.011:581.35:428:00First Quarter26Wed
27Thu5:373.85:586.311:151.35:438:00Waxing Gibbous27Thu
28Fri7:003.86:446.912:590.412:071.65:438:00Waxing Gibbous28Fri
29Sat8:094.07:297.31:55-0.512:581.95:438:00Waxing Gibbous29Sat
30Sun9:094.18:147.62:46-1.11:492.15:448:00Waxing Gibbous30Sun
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 33% 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 First Quarter (33% 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