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 44m 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 - Mar 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:055.110:360.56:165:45Third Quarter1Sun
2Mon3:445.37:003.511:45-0.210:492.86:155:46Third Quarter2Mon
3Tue5:065.87:214.012:35-0.86:135:47Waning Crescent3Tue
4Wed6:096.47:474.51:18-1.36:125:48Waning Crescent4Wed
5Thu7:026.88:165.112:551.61:57-1.56:115:48Waning Crescent5Thu
6Fri7:516.98:475.51:460.92:33-1.56:105:49New Moon6Fri
7Sat8:376.79:195.92:330.33:07-1.26:085:50New Moon7Sat
8Sun9:226.39:516.13:18-0.13:39-0.66:075:51New Moon8Sun
9Mon10:065.610:246.14:04-0.24:100.06:065:51Waxing Crescent9Mon
10Tue10:534.710:596.04:51-0.14:380.76:055:52Waxing Crescent10Tue
11Wed11:453.911:365.75:420.15:031.56:035:53Waxing Crescent11Wed
12Thu12:503.16:430.55:212.16:025:54Waxing Crescent12Thu
13Fri12:205.38:040.86:015:54First Quarter13Fri
14Sat1:194.910:030.96:005:55First Quarter14Sat
15Sun2:464.67:173.511:300.610:303.25:585:56First Quarter15Sun
16Mon4:284.77:243.812:180.25:575:57First Quarter16Mon
17Tue5:365.07:364.112:520.05:565:57Waxing Gibbous17Tue
18Wed6:235.37:494.412:272.31:20-0.25:545:58Waxing Gibbous18Wed
19Thu7:005.58:034.71:031.81:44-0.35:535:59Waxing Gibbous19Thu
20Fri7:345.68:205.01:361.32:08-0.35:525:59Waxing Gibbous20Fri
21Sat8:075.68:405.32:080.92:31-0.15:506:00Full Moon21Sat
22Sun8:395.59:005.52:400.52:530.15:496:01Full Moon22Sun
23Mon9:125.29:225.73:120.33:140.45:486:02Full Moon23Mon
24Tue9:464.89:455.83:440.13:330.85:466:02Full Moon24Tue
25Wed10:234.310:095.84:180.03:511.25:456:03Waning Gibbous25Wed
26Thu11:073.810:365.74:570.14:071.75:446:04Waning Gibbous26Thu
27Fri12:063.25:470.24:222.15:436:04Waning Gibbous27Fri
28Sat1:332.86:560.44:322.55:416:05Third Quarter28Sat
29Sun12:095.38:310.45:406:06Third Quarter29Sun
30Mon1:385.16:123.410:050.29:143.25:396:06Third Quarter30Mon
31Tue3:255.16:204.011:12-0.310:582.65:376:07Third Quarter31Tue
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