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

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 4h 15m at 5:03 pm (2.5 ft)
Next high tide : 11:04 pm (6.1 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Jul 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:193.87:316.52:140.11:062.25:448:00Waxing Gibbous1Fri
2Sat9:024.18:126.82:53-0.41:542.15:458:00Waxing Gibbous2Sat
3Sun9:414.38:537.13:31-0.92:412.05:458:00Full Moon3Sun
4Mon10:204.69:357.34:10-1.23:271.85:468:00Full Moon4Mon
5Tue11:014.810:197.24:49-1.34:141.75:468:00Full Moon5Tue
6Wed11:435.011:056.85:29-1.25:041.75:467:59Waning Gibbous6Wed
7Thu12:285.16:10-0.96:001.75:477:59Waning Gibbous7Thu
8Fri1:165.36:52-0.57:031.75:487:59Waning Gibbous8Fri
9Sat12:515.52:075.57:360.18:171.75:487:59Third Quarter9Sat
10Sun1:564.73:045.68:240.79:461.65:497:58Third Quarter10Sun
11Mon3:194.04:075.89:191.311:201.25:497:58Third Quarter11Mon
12Tue4:593.75:096.010:251.85:507:58Third Quarter12Tue
13Wed6:343.76:066.312:380.611:34 AM2.15:507:57Waning Crescent13Wed
14Thu7:473.96:586.51:380.112:362.25:517:57Waning Crescent14Thu
15Fri8:394.17:446.72:26-0.31:312.25:517:57Waning Crescent15Fri
16Sat9:194.38:266.73:06-0.52:182.15:527:56Waning Crescent16Sat
17Sun9:534.59:046.73:42-0.62:592.05:537:56New Moon17Sun
18Mon10:244.69:396.64:14-0.63:372.05:537:55New Moon18Mon
19Tue10:554.710:126.44:43-0.54:131.95:547:55New Moon19Tue
20Wed11:254.710:446.15:12-0.34:481.95:557:54New Moon20Wed
21Thu11:564.811:175.75:400.05:262.05:557:54Waxing Crescent21Thu
22Fri12:294.86:080.36:072.15:567:53Waxing Crescent22Fri
23Sat1:034.86:350.76:552.25:577:53Waxing Crescent23Sat
24Sun12:294.71:404.87:021.27:542.35:577:52Waxing Crescent24Sun
25Mon1:174.12:244.97:311.69:142.25:587:51First Quarter25Mon
26Tue2:273.53:205.08:042.010:532.05:587:51First Quarter26Tue
27Wed4:213.24:255.28:582.45:597:50First Quarter27Wed
28Thu6:093.35:265.612:111.410:28 AM2.66:007:49First Quarter28Thu
29Fri7:183.66:206.01:060.811:47 AM2.66:007:49Waxing Gibbous29Fri
30Sat8:034.07:096.51:510.212:482.46:017:48Waxing Gibbous30Sat
31Sun8:414.47:557.02:31-0.41:412.16:027:47Waxing Gibbous31Sun
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 8:03 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 93% 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 Gibbous (93% 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