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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 4h 20m at 5:33 pm (2.2 ft)
Next high tide : 11:38 pm (6.9 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Jul 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:545.02:264.77:470.68:172.45:448:00Third Quarter1Sun
2Mon1:454.33:134.88:221.29:412.35:458:00Third Quarter2Mon
3Tue2:553.64:045.09:011.711:202.05:458:00Third Quarter3Tue
4Wed4:363.24:555.29:492.15:468:00Third Quarter4Wed
5Thu6:233.25:435.412:351.510:49 AM2.45:467:59Third Quarter5Thu
6Fri7:443.46:275.71:281.011:49 AM2.65:467:59Waning Crescent6Fri
7Sat8:323.67:096.02:090.512:422.65:477:59Waning Crescent7Sat
8Sun9:063.87:486.32:440.01:302.65:487:59Waning Crescent8Sun
9Mon9:374.08:266.63:17-0.42:142.45:487:59Waning Crescent9Mon
10Tue10:074.29:036.83:50-0.62:562.35:497:58New Moon10Tue
11Wed10:384.49:406.94:23-0.83:362.15:497:58New Moon11Wed
12Thu11:114.610:186.84:56-0.94:172.05:507:58New Moon12Thu
13Fri11:464.810:596.55:29-0.85:021.95:507:57Waxing Crescent13Fri
14Sat12:245.06:03-0.65:531.95:517:57Waxing Crescent14Sat
15Sun1:045.26:38-0.26:521.85:517:57Waxing Crescent15Sun
16Mon12:345.31:485.47:140.48:031.85:527:56Waxing Crescent16Mon
17Tue1:364.52:395.67:521.09:301.65:537:56First Quarter17Tue
18Wed2:583.83:395.88:391.611:071.15:537:55First Quarter18Wed
19Thu4:483.44:456.19:432.15:547:55First Quarter19Thu
20Fri6:333.55:486.412:280.511:03 AM2.45:557:54Waxing Gibbous20Fri
21Sat7:493.86:466.71:30-0.112:182.55:557:54Waxing Gibbous21Sat
22Sun8:404.17:397.02:21-0.61:212.45:567:53Waxing Gibbous22Sun
23Mon9:204.48:277.23:05-0.92:162.15:577:53Full Moon23Mon
24Tue9:554.79:107.13:44-1.13:031.95:577:52Full Moon24Tue
25Wed10:284.99:507.04:19-1.03:461.85:587:51Full Moon25Wed
26Thu11:015.010:276.64:52-0.84:271.75:587:51Full Moon26Thu
27Fri11:345.111:046.15:23-0.45:081.75:597:50Waning Gibbous27Fri
28Sat12:075.15:530.05:491.86:007:49Waning Gibbous28Sat
29Sun12:405.16:200.56:351.96:007:48Waning Gibbous29Sun
30Mon12:194.91:145.16:461.07:272.06:017:48Waning Gibbous30Mon
31Tue1:034.21:525.07:111.68:342.16:027:47Third Quarter31Tue
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 8:35 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 Waxing 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