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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide : 10:51 pm (1.8 ft)
Next high tide : in 6h 21m at 3:46 pm (5.3 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Jul 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:283.76:256.012:511.211:47 AM1.85:448:00Waxing Gibbous1Mon
2Tue7:363.87:056.51:410.412:352.05:458:00Waxing Gibbous2Tue
3Wed8:334.07:487.02:28-0.31:242.15:458:00Waxing Gibbous3Wed
4Thu9:244.28:327.43:13-1.02:132.15:468:00Full Moon4Thu
5Fri10:124.49:187.63:58-1.43:032.15:468:00Full Moon5Fri
6Sat11:004.510:047.64:43-1.73:522.05:477:59Full Moon6Sat
7Sun11:484.610:537.45:29-1.64:442.05:477:59Waning Gibbous7Sun
8Mon12:384.76:16-1.45:412.15:487:59Waning Gibbous8Mon
9Tue1:294.87:03-1.06:442.25:487:59Waning Gibbous9Tue
10Wed12:416.22:225.07:50-0.47:572.25:497:58Waning Gibbous10Wed
11Thu1:435.43:185.28:390.29:242.15:497:58Third Quarter11Thu
12Fri2:564.64:155.49:300.911:011.85:507:58Third Quarter12Fri
13Sat4:264.05:105.710:261.45:507:57Third Quarter13Sat
14Sun6:023.75:596.012:231.211:23 AM1.95:517:57Waning Crescent14Sun
15Mon7:263.76:446.21:260.612:162.25:527:57Waning Crescent15Mon
16Tue8:303.97:256.32:160.21:052.45:527:56Waning Crescent16Tue
17Wed9:164.08:036.42:57-0.21:502.55:537:56Waning Crescent17Wed
18Thu9:514.18:396.53:31-0.32:302.55:537:55New Moon18Thu
19Fri10:224.29:136.54:03-0.43:062.55:547:55New Moon19Fri
20Sat10:514.29:456.54:33-0.43:402.45:557:54New Moon20Sat
21Sun11:224.310:176.45:03-0.44:142.45:557:54New Moon21Sun
22Mon11:534.310:496.25:33-0.34:492.45:567:53Waxing Crescent22Mon
23Tue12:264.46:03-0.15:272.45:577:53Waxing Crescent23Tue
24Wed1:004.46:330.26:102.55:577:52Waxing Crescent24Wed
25Thu1:364.57:030.57:022.55:587:51Waxing Crescent25Thu
26Fri12:374.92:154.77:331.08:102.55:597:51First Quarter26Fri
27Sat1:304.33:014.98:051.49:402.35:597:50First Quarter27Sat
28Sun2:513.73:545.18:461.811:161.86:007:49First Quarter28Sun
29Mon4:463.44:515.59:452.26:017:48First Quarter29Mon
30Tue6:273.55:476.012:281.111:00 AM2.56:017:48Waxing Gibbous30Tue
31Wed7:403.86:406.61:250.312:102.66:027:47Waxing Gibbous31Wed
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 7:18 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 neap phase. Tonight's moon is 50% 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 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 Third Quarter (50% illuminated). This places National City, 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