Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide : in 4h 36m at 4:50 am (-0.6 ft)
Next high tide : 11:10 am (4.6 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:01 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Aug 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:065.65:44-0.45:551.46:027:46Waxing Crescent1Wed
2Thu12:465.66:180.36:501.66:037:46Waxing Crescent2Thu
3Fri12:414.91:285.56:521.07:551.86:047:45Waxing Crescent3Fri
4Sat1:374.02:155.47:261.79:171.86:047:44First Quarter4Sat
5Sun2:513.33:095.38:052.311:031.76:057:43First Quarter5Sun
6Mon5:203.04:165.39:052.86:067:42First Quarter6Mon
7Tue7:353.35:285.412:291.210:40 AM3.16:067:41First Quarter7Tue
8Wed8:163.76:265.71:210.811:59 AM3.06:077:40Waxing Gibbous8Wed
9Thu8:413.97:126.01:590.412:542.86:087:39Waxing Gibbous9Thu
10Fri9:024.27:516.32:310.11:402.56:087:38Waxing Gibbous10Fri
11Sat9:234.48:276.53:00-0.22:192.36:097:37Waxing Gibbous11Sat
12Sun9:444.79:016.63:27-0.32:562.06:107:36Full Moon12Sun
13Mon10:074.99:336.63:53-0.33:311.86:107:35Full Moon13Mon
14Tue10:315.110:066.34:19-0.34:051.66:117:34Full Moon14Tue
15Wed10:575.310:396.04:43-0.14:401.56:127:33Full Moon15Wed
16Thu11:245.511:155.55:070.35:171.46:127:32Waning Gibbous16Thu
17Fri11:545.611:564.95:310.76:001.46:137:31Waning Gibbous17Fri
18Sat12:285.75:551.16:541.46:147:30Waning Gibbous18Sat
19Sun12:484.31:105.76:211.68:051.46:147:29Third Quarter19Sun
20Mon2:003.62:055.76:532.29:391.36:157:28Third Quarter20Mon
21Tue3:443.23:175.87:452.711:160.96:167:26Third Quarter21Tue
22Wed6:123.34:416.09:473.06:167:25Third Quarter22Wed
23Thu7:203.85:586.412:280.211:34 AM2.96:177:24Waning Crescent23Thu
24Fri8:004.47:006.91:22-0.312:452.46:187:23Waning Crescent24Fri
25Sat8:344.97:537.22:08-0.71:431.96:187:22Waning Crescent25Sat
26Sun9:085.38:417.22:49-0.92:341.46:197:20New Moon26Sun
27Mon9:405.79:267.03:26-0.93:221.06:207:19New Moon27Mon
28Tue10:126.010:096.64:01-0.64:060.76:207:18New Moon28Tue
29Wed10:456.110:516.04:33-0.24:500.66:217:17New Moon29Wed
30Thu11:176.111:335.35:040.45:340.76:227:16Waxing Crescent30Thu
31Fri11:516.05:321.06:201.06:227:14Waxing Crescent31Fri
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 8:00 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 spring phase. Tonight's moon is 99% 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 maximum.

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 Full Moon (99% illuminated). This places South San Diego Bay, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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