Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide : in 4h 41m at 8:34 pm (1.8 ft)
Next high tide (tomorrow) : 2:13 am (3.6 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:04 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Aug 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:424.911:076.15:22-0.45:071.96:037:46Waning Gibbous1Wed
2Thu12:174.95:540.05:472.16:037:45Waning Gibbous2Thu
3Fri12:544.86:260.56:322.36:047:45Waning Gibbous3Fri
4Sat12:245.01:344.86:581.07:272.46:057:44Waning Gibbous4Sat
5Sun1:104.42:184.87:321.58:392.56:067:43Third Quarter5Sun
6Mon2:093.83:084.88:122.010:102.46:067:42Third Quarter6Mon
7Tue3:313.44:094.99:092.411:381.96:077:41Third Quarter7Tue
8Wed5:283.35:125.210:252.66:087:40Third Quarter8Wed
9Thu6:583.56:065.612:381.411:36 AM2.66:087:39Waning Crescent9Thu
10Fri7:463.96:536.01:220.912:312.56:097:38Waning Crescent10Fri
11Sat8:224.27:346.42:000.31:192.36:107:37Waning Crescent11Sat
12Sun8:544.58:146.82:37-0.12:032.16:107:36Waning Crescent12Sun
13Mon9:274.98:547.03:12-0.52:451.86:117:35New Moon13Mon
14Tue10:005.19:337.13:46-0.73:261.56:127:34New Moon14Tue
15Wed10:345.410:146.94:21-0.84:081.36:127:33New Moon15Wed
16Thu11:105.510:576.64:55-0.64:521.26:137:32Waxing Crescent16Thu
17Fri11:505.711:446.05:31-0.35:401.26:147:31Waxing Crescent17Fri
18Sat12:335.76:090.26:371.36:147:29Waxing Crescent18Sat
19Sun12:385.31:215.76:500.87:451.46:157:28Waxing Crescent19Sun
20Mon1:434.62:175.77:381.59:091.46:167:27First Quarter20Mon
21Tue3:043.93:225.88:392.110:431.16:167:26First Quarter21Tue
22Wed4:553.74:375.910:012.46:177:25First Quarter22Wed
23Thu6:393.95:506.112:050.611:25 AM2.56:187:24Waxing Gibbous23Thu
24Fri7:414.36:506.41:070.212:332.36:187:23Waxing Gibbous24Fri
25Sat8:244.77:406.71:56-0.21:292.16:197:21Waxing Gibbous25Sat
26Sun9:005.08:246.82:38-0.42:171.86:207:20Waxing Gibbous26Sun
27Mon9:325.29:036.83:15-0.52:591.66:207:19Full Moon27Mon
28Tue10:015.39:396.63:47-0.43:371.46:217:18Full Moon28Tue
29Wed10:295.410:146.34:18-0.24:131.46:217:16Full Moon29Wed
30Thu10:575.410:485.94:460.14:481.46:227:15Full Moon30Thu
31Fri11:255.311:225.45:130.55:231.56:237:14Waning Gibbous31Fri
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 11:23 pm — 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 64% 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 Third Quarter (64% 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