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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide : 8:38 am (0.0 ft)
Next high tide : in 3h 22m at 1:33 am (5.4 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Jun 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:504.27:14-0.36:532.55:417:51Waxing Crescent1Wed
2Thu12:445.32:494.28:010.18:012.75:417:52Waxing Crescent2Thu
3Fri1:394.73:524.38:520.69:272.75:407:52First Quarter3Fri
4Sat2:464.14:504.59:461.011:042.45:407:53First Quarter4Sat
5Sun4:103.85:364.810:421.35:407:53First Quarter5Sun
6Mon5:313.66:145.112:151.911:31 AM1.55:407:54First Quarter6Mon
7Tue6:373.76:475.41:061.412:141.65:407:54Waxing Gibbous7Tue
8Wed7:323.87:195.81:470.912:531.75:407:55Waxing Gibbous8Wed
9Thu8:183.97:516.12:240.41:301.85:407:55Waxing Gibbous9Thu
10Fri8:594.08:236.32:590.02:071.85:407:56Waxing Gibbous10Fri
11Sat9:384.28:556.53:33-0.42:431.95:407:56Full Moon11Sat
12Sun10:164.29:296.64:08-0.63:201.95:407:56Full Moon12Sun
13Mon10:564.310:046.64:45-0.83:572.05:407:57Full Moon13Mon
14Tue11:394.310:426.55:23-0.94:382.15:407:57Waning Gibbous14Tue
15Wed12:254.46:03-0.85:242.25:407:57Waning Gibbous15Wed
16Thu1:144.56:46-0.66:202.35:407:58Waning Gibbous16Thu
17Fri12:145.82:064.67:31-0.37:292.45:407:58Waning Gibbous17Fri
18Sat1:125.23:034.88:210.18:532.35:407:58Third Quarter18Sat
19Sun2:254.64:035.29:160.510:281.95:407:59Third Quarter19Sun
20Mon3:544.15:005.610:160.911:511.35:417:59Third Quarter20Mon
21Tue5:254.05:526.111:171.25:417:59Waning Crescent21Tue
22Wed6:434.06:406.512:570.612:131.45:417:59Waning Crescent22Wed
23Thu7:504.27:276.91:52-0.11:061.55:417:59Waning Crescent23Thu
24Fri8:454.48:117.12:41-0.61:571.65:428:00Waning Crescent24Fri
25Sat9:334.58:547.23:25-1.02:441.75:428:00New Moon25Sat
26Sun10:174.69:357.14:06-1.13:291.75:428:00New Moon26Sun
27Mon10:594.610:146.84:46-1.14:111.85:438:00New Moon27Mon
28Tue11:414.610:536.45:24-0.94:542.05:438:00Waxing Crescent28Tue
29Wed12:244.66:01-0.65:372.15:438:00Waxing Crescent29Wed
30Thu1:064.66:38-0.26:252.35:448:00Waxing Crescent30Thu
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 5:05 am — 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 transitional phase. Tonight's moon is 28% 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 shifting between spring and neap.

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 Waxing Crescent (28% illuminated). This places National City, San Diego Bay, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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