Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in South San Diego Bay, CA.
Next low tide : in 3h 03m at 9:20 am (0.7 ft)
Next high tide : 4:19 pm (5.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:41 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Apr 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:554.67:063.411:140.610:383.16:357:08First Quarter1Wed
2Thu4:384.87:203.912:170.16:347:09First Quarter2Thu
3Fri5:585.27:454.512:052.61:05-0.46:327:10Waxing Gibbous3Fri
4Sat6:595.78:145.01:021.91:47-0.86:317:11Waxing Gibbous4Sat
5Sun7:526.18:455.61:521.12:27-0.96:307:11Waxing Gibbous5Sun
6Mon8:416.39:186.12:390.33:05-0.86:287:12Full Moon6Mon
7Tue9:296.29:516.53:25-0.33:41-0.66:277:13Full Moon7Tue
8Wed10:175.910:276.74:11-0.84:17-0.16:267:13Full Moon8Wed
9Thu11:065.311:036.64:57-1.04:520.56:257:14Waning Gibbous9Thu
10Fri12:004.65:47-0.95:261.26:237:15Waning Gibbous10Fri
11Sat1:024.06:41-0.66:021.96:227:16Waning Gibbous11Sat
12Sun12:276.02:203.47:45-0.26:442.56:217:16Waning Gibbous12Sun
13Mon1:205.44:343.39:030.28:013.16:207:17Third Quarter13Mon
14Tue2:284.96:363.710:350.310:173.26:197:18Third Quarter14Tue
15Wed3:584.67:164.111:530.36:177:18Third Quarter15Wed
16Thu5:334.67:434.412:042.812:450.16:167:19Third Quarter16Thu
17Fri6:404.78:054.81:012.31:240.16:157:20Waning Crescent17Fri
18Sat7:284.98:245.01:421.71:560.16:147:21Waning Crescent18Sat
19Sun8:085.08:445.32:161.22:240.26:137:21Waning Crescent19Sun
20Mon8:435.19:045.62:490.82:510.36:127:22Waning Crescent20Mon
21Tue9:185.09:255.83:200.43:160.66:117:23New Moon21Tue
22Wed9:514.89:485.93:510.13:410.86:097:23New Moon22Wed
23Thu10:264.610:115.94:22-0.14:031.26:087:24New Moon23Thu
24Fri11:024.310:345.94:54-0.24:231.56:077:25New Moon24Fri
25Sat11:423.910:585.75:27-0.14:411.96:067:26Waxing Crescent25Sat
26Sun12:303.66:050.04:582.36:057:26Waxing Crescent26Sun
27Mon1:333.36:520.25:152.66:047:27Waxing Crescent27Mon
28Tue2:563.27:530.35:383.06:037:28Waxing Crescent28Tue
29Wed12:535.14:593.49:080.47:253.36:027:28First Quarter29Wed
30Thu2:214.86:013.810:260.310:293.26:017:29First Quarter30Thu
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 12:49 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 neap phase. Tonight's moon is 49% 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 minimum.

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 (49% illuminated). This places South San Diego Bay, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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