Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide (tomorrow) : in 6h 54m at 12:53 am (1.1 ft)
Next high tide (tomorrow) : 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 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:414.62:375.47:561.19:161.86:037:46First Quarter1Sat
2Sun2:533.93:375.48:501.810:521.76:037:45First Quarter2Sun
3Mon4:353.54:455.59:572.26:047:45First Quarter3Mon
4Tue6:323.55:495.712:161.311:09 AM2.56:057:44First Quarter4Tue
5Wed7:393.86:415.91:130.812:122.56:057:43Waxing Gibbous5Wed
6Thu8:224.17:236.11:560.51:042.46:067:42Waxing Gibbous6Thu
7Fri8:544.38:016.32:320.21:472.26:077:41Waxing Gibbous7Fri
8Sat9:214.58:356.53:03-0.12:272.16:077:40Waxing Gibbous8Sat
9Sun9:474.79:086.53:32-0.23:031.96:087:39Full Moon9Sun
10Mon10:124.89:406.54:00-0.23:371.86:097:38Full Moon10Mon
11Tue10:395.010:126.34:27-0.14:101.86:097:37Full Moon11Tue
12Wed11:075.010:436.04:540.04:431.76:107:36Full Moon12Wed
13Thu11:375.111:165.65:200.35:171.86:117:35Waning Gibbous13Thu
14Fri12:085.15:450.65:551.86:117:34Waning Gibbous14Fri
15Sat12:435.16:111.06:431.96:127:33Waning Gibbous15Sat
16Sun12:364.61:255.26:411.47:482.06:137:32Waning Gibbous16Sun
17Mon1:374.02:165.37:181.89:131.86:137:31Third Quarter17Mon
18Tue3:023.63:215.48:162.310:461.56:147:30Third Quarter18Tue
19Wed4:493.54:355.79:472.56:157:29Third Quarter19Wed
20Thu6:233.85:456.212:000.811:17 AM2.56:157:27Waning Crescent20Thu
21Fri7:234.36:456.712:580.212:262.26:167:26Waning Crescent21Fri
22Sat8:094.87:397.11:48-0.41:251.86:177:25Waning Crescent22Sat
23Sun8:505.38:287.42:33-0.82:181.36:177:24New Moon23Sun
24Mon9:305.79:167.43:16-1.03:081.06:187:23New Moon24Mon
25Tue10:085.910:017.13:56-1.03:560.76:197:21New Moon25Tue
26Wed10:466.110:476.64:34-0.74:430.66:197:20New Moon26Wed
27Thu11:266.111:345.95:12-0.25:310.76:207:19Waxing Crescent27Thu
28Fri12:076.05:490.46:221.06:217:18Waxing Crescent28Fri
29Sat12:245.212:515.86:261.17:211.36:217:17Waxing Crescent29Sat
30Sun1:214.41:405.57:071.88:331.66:227:15First Quarter30Sun
31Mon2:323.82:385.27:572.410:051.66:237:14First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410135)

Common Questions About South San Diego Bay, CA Tides

Show All
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