Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in South San Diego Bay, CA.
Next low tide : 4:52 pm (2.1 ft)
Next high tide : in 4h 25m at 11:37 am (4.8 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Apr 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:005.89:186.22:570.03:09-0.26:357:08Full Moon1Thu
2Fri9:455.69:506.63:39-0.63:400.16:347:09Full Moon2Fri
3Sat10:315.210:236.84:23-1.04:120.66:337:10Full Moon3Sat
4Sun11:214.711:006.85:08-1.14:441.16:317:10Waning Gibbous4Sun
5Mon12:174.05:59-1.05:161.76:307:11Waning Gibbous5Mon
6Tue1:273.56:58-0.75:512.26:297:12Waning Gibbous6Tue
7Wed12:326.13:033.28:11-0.36:402.86:287:13Third Quarter7Wed
8Thu1:385.65:363.49:380.08:423.16:267:13Third Quarter8Thu
9Fri3:035.16:383.911:060.010:592.96:257:14Third Quarter9Fri
10Sat4:434.97:114.412:11-0.16:247:15Third Quarter10Sat
11Sun6:074.97:394.812:232.312:58-0.16:237:15Waning Crescent11Sun
12Mon7:085.08:045.21:181.61:350.06:217:16Waning Crescent12Mon
13Tue7:565.18:285.62:021.02:070.26:207:17Waning Crescent13Tue
14Wed8:375.08:505.92:400.52:360.46:197:17Waning Crescent14Wed
15Thu9:154.89:136.03:150.13:030.76:187:18New Moon15Thu
16Fri9:504.69:366.13:48-0.23:281.06:177:19New Moon16Fri
17Sat10:254.410:006.14:20-0.33:511.46:157:20New Moon17Sat
18Sun11:014.110:255.94:52-0.34:121.76:147:20New Moon18Sun
19Mon11:403.710:495.85:25-0.24:292.16:137:21Waxing Crescent19Mon
20Tue12:273.46:030.04:422.46:127:22Waxing Crescent20Tue
21Wed1:263.16:470.34:502.66:117:23Waxing Crescent21Wed
22Thu7:430.66:107:23Waxing Crescent22Thu
23Fri12:274.98:530.76:097:24First Quarter23Fri
24Sat1:434.66:233.610:070.79:493.36:087:25First Quarter24Sat
25Sun3:234.46:224.011:070.511:272.86:077:25First Quarter25Sun
26Mon4:544.46:414.611:540.46:057:26First Quarter26Mon
27Tue6:064.67:065.212:252.012:340.36:047:27Waxing Gibbous27Tue
28Wed7:054.87:345.81:121.11:120.36:037:28Waxing Gibbous28Wed
29Thu7:585.08:066.51:570.21:490.56:027:28Waxing Gibbous29Thu
30Fri8:495.08:407.02:43-0.72:260.76:017:29Full Moon30Fri
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 2:14 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 spring phase. Tonight's moon is 95% 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 Waning Gibbous (95% 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