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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide (tomorrow) : 8:38 am (0.0 ft)
Next high tide (tomorrow) : in 4h 40m 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 - May 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:124.45:57-1.15:281.66:007:30Waxing Crescent1Sun
2Mon1:124.16:48-0.76:162.05:597:31Waxing Crescent2Mon
3Tue12:235.82:213.97:44-0.27:162.45:587:31Waxing Crescent3Tue
4Wed1:185.23:423.98:460.28:372.75:577:32First Quarter4Wed
5Thu2:264.65:024.19:570.510:262.75:577:33First Quarter5Thu
6Fri3:504.25:574.411:050.711:552.35:567:33First Quarter6Fri
7Sat5:134.16:364.711:580.85:557:34First Quarter7Sat
8Sun6:194.17:065.012:521.812:390.95:547:35Waxing Gibbous8Sun
9Mon7:114.27:335.31:331.31:141.05:537:36Waxing Gibbous9Mon
10Tue7:554.38:005.62:090.81:441.15:527:36Waxing Gibbous10Tue
11Wed8:344.38:265.82:420.42:141.25:527:37Waxing Gibbous11Wed
12Thu9:114.48:526.03:150.02:431.35:517:38Full Moon12Thu
13Fri9:484.39:206.23:47-0.33:121.55:507:39Full Moon13Fri
14Sat10:254.39:486.24:21-0.53:421.65:497:39Full Moon14Sat
15Sun11:054.210:196.24:57-0.54:121.85:497:40Full Moon15Sun
16Mon11:504.010:526.15:36-0.54:452.05:487:41Waning Gibbous16Mon
17Tue12:403.96:18-0.45:232.25:477:41Waning Gibbous17Tue
18Wed1:373.97:05-0.36:132.55:477:42Waning Gibbous18Wed
19Thu12:195.52:414.07:58-0.17:262.75:467:43Waning Gibbous19Thu
20Fri1:215.13:484.28:570.29:052.65:467:43Third Quarter20Fri
21Sat2:424.64:494.610:010.310:462.25:457:44Third Quarter21Sat
22Sun4:154.45:395.211:020.55:457:45Third Quarter22Sun
23Mon5:384.46:245.812:021.511:56 AM0.65:447:45Waning Crescent23Mon
24Tue6:474.57:066.31:030.712:450.75:447:46Waning Crescent24Tue
25Wed7:494.67:476.81:56-0.11:310.85:437:47Waning Crescent25Wed
26Thu8:444.78:287.12:44-0.72:161.05:437:47Waning Crescent26Thu
27Fri9:344.79:097.23:30-1.13:001.25:427:48New Moon27Fri
28Sat10:234.79:507.14:15-1.33:421.45:427:49New Moon28Sat
29Sun11:124.610:316.84:59-1.34:251.65:427:49New Moon29Sun
30Mon12:024.55:43-1.15:101.95:417:50Waxing Crescent30Mon
31Tue12:554.36:28-0.85:582.25:417:50Waxing Crescent31Tue
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