Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide : in 2h 51m at 12:53 am (1.1 ft)
Next high tide : 7:40 am (3.2 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Aug 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:054.17:596.42:390.11:432.56:027:47Waxing Gibbous1Sun
2Mon9:354.38:346.63:12-0.22:232.46:037:46Waxing Gibbous2Mon
3Tue10:034.49:086.73:42-0.43:002.36:037:45Full Moon3Tue
4Wed10:304.59:416.64:12-0.43:352.26:047:44Full Moon4Wed
5Thu10:594.610:136.54:41-0.44:082.26:057:43Full Moon5Thu
6Fri11:294.710:456.35:10-0.34:422.16:067:42Full Moon6Fri
7Sat12:014.75:38-0.15:182.26:067:41Waning Gibbous7Sat
8Sun12:354.86:070.26:012.26:077:40Waning Gibbous8Sun
9Mon1:125.06:370.66:552.26:087:39Waning Gibbous9Mon
10Tue12:464.81:555.17:101.18:082.16:087:38Third Quarter10Tue
11Wed1:514.22:465.37:511.69:381.96:097:37Third Quarter11Wed
12Thu3:193.73:475.68:482.111:091.36:107:36Third Quarter12Thu
13Fri5:103.54:556.010:072.46:107:35Third Quarter13Fri
14Sat6:473.86:006.512:220.611:29 AM2.56:117:34Waning Crescent14Sat
15Sun7:514.26:587.01:20-0.212:362.46:127:33Waning Crescent15Sun
16Mon8:394.67:517.42:12-0.81:352.16:127:32Waning Crescent16Mon
17Tue9:204.98:407.62:58-1.22:281.86:137:31New Moon17Tue
18Wed9:595.29:277.63:41-1.33:181.56:147:30New Moon18Wed
19Thu10:375.410:127.34:21-1.24:061.36:147:29New Moon19Thu
20Fri11:145.510:566.74:58-0.94:521.36:157:28Waxing Crescent20Fri
21Sat11:535.511:406.05:35-0.35:391.46:167:27Waxing Crescent21Sat
22Sun12:325.46:100.36:301.66:167:25Waxing Crescent22Sun
23Mon12:275.21:135.36:451.07:291.86:177:24Waxing Crescent23Mon
24Tue1:214.41:585.27:211.78:422.06:187:23First Quarter24Tue
25Wed2:283.72:505.18:032.310:171.96:187:22First Quarter25Wed
26Thu4:163.33:555.09:062.811:531.66:197:21First Quarter26Thu
27Fri6:563.55:095.110:383.16:207:19First Quarter27Fri
28Sat7:493.86:115.412:531.111:55 AM3.06:207:18Waxing Gibbous28Sat
29Sun8:194.16:595.81:360.712:502.86:217:17Waxing Gibbous29Sun
30Mon8:434.47:406.12:100.31:342.56:227:16Waxing Gibbous30Mon
31Tue9:054.68:166.42:410.02:122.26:227:14Waxing Gibbous31Tue
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 4:16 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 63% 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 (63% 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