Tides Today & Tomorrow in National City, San Diego Bay, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide (tomorrow) : 2:58 am (-1.2 ft)
Next high tide : in 3h 39m at 7:21 pm (7.2 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - May 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:514.47:595.72:060.81:470.96:007:30Waning Crescent1Fri
2Sat8:334.48:235.92:410.32:141.15:597:31Waning Crescent2Sat
3Sun9:114.38:476.03:130.02:391.45:587:32New Moon3Sun
4Mon9:484.19:116.13:45-0.33:041.65:577:32New Moon4Mon
5Tue10:244.09:376.14:17-0.43:281.85:567:33New Moon5Tue
6Wed11:033.810:036.14:50-0.53:532.05:557:34New Moon6Wed
7Thu11:463.710:315.95:26-0.44:172.25:557:34Waxing Crescent7Thu
8Fri12:353.56:06-0.24:422.45:547:35Waxing Crescent8Fri
9Sat1:333.46:510.05:102.75:537:36Waxing Crescent9Sat
10Sun2:433.37:420.15:542.95:527:37Waxing Crescent10Sun
11Mon12:295.14:003.58:390.37:333.15:517:37First Quarter11Mon
12Tue1:364.84:553.99:390.49:432.95:517:38First Quarter12Tue
13Wed3:064.45:324.410:370.511:182.45:507:39First Quarter13Wed
14Thu4:394.36:045.011:260.65:497:40First Quarter14Thu
15Fri5:554.36:385.612:221.512:100.75:497:40Waxing Gibbous15Fri
16Sat7:014.47:136.21:160.612:510.95:487:41Waxing Gibbous16Sat
17Sun8:024.57:506.82:07-0.21:331.15:477:42Waxing Gibbous17Sun
18Mon8:574.58:307.22:55-1.02:151.35:477:42Full Moon18Mon
19Tue9:514.59:127.43:43-1.52:581.55:467:43Full Moon19Tue
20Wed10:444.49:567.44:31-1.83:421.75:467:44Full Moon20Wed
21Thu11:394.210:437.25:20-1.84:291.95:457:44Waning Gibbous21Thu
22Fri12:374.16:12-1.55:202.25:457:45Waning Gibbous22Fri
23Sat1:384.17:05-1.16:212.45:447:46Waning Gibbous23Sat
24Sun12:286.12:424.28:00-0.67:342.65:447:46Waning Gibbous24Sun
25Mon1:305.43:484.38:57-0.19:042.65:437:47Third Quarter25Mon
26Tue2:424.74:474.69:550.310:472.45:437:48Third Quarter26Tue
27Wed4:054.25:345.010:500.85:427:48Third Quarter27Wed
28Thu5:273.96:125.312:071.811:37 AM1.15:427:49Third Quarter28Thu
29Fri6:393.86:455.61:061.312:171.55:427:50Waning Crescent29Fri
30Sat7:393.77:155.81:510.712:521.75:417:50Waning Crescent30Sat
31Sun8:303.87:456.02:290.31:262.05:417:51Waning Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410152)

Common Questions About National City, San Diego Bay, CA Tides

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What time does the tide turn (slack tide) in National City, San Diego Bay, CA today?

Slack tide in National City, San Diego Bay, CA is approximately 11:09 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 National City, San Diego Bay, CA?

National City, San Diego Bay, CA is currently in a spring phase. Tonight's moon is 10% 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 National City, 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 National City, San Diego Bay, CA?

Tide predictions for National City, 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 National City, San Diego Bay, CA?

Tide data for National City, San Diego Bay, CA is sourced from NOAA Station #9410152. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410152.

What is the moon phase in National City, San Diego Bay, CA tonight?

Tonight the moon over National City, San Diego Bay, CA is Waning Crescent (10% illuminated). This places National City, 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