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

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 4h 39m at 3:19 am (-0.3 ft)
Next high tide : 9:42 am (3.8 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - May 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:023.57:20-0.96:002.66:007:30Waxing Crescent1Sun
2Mon12:326.13:363.68:30-0.67:252.95:597:31First Quarter2Mon
3Tue1:455.55:023.99:46-0.39:262.95:587:32First Quarter3Tue
4Wed3:145.15:544.410:57-0.211:162.55:577:32First Quarter4Wed
5Thu4:454.96:334.911:53-0.15:567:33First Quarter5Thu
6Fri6:004.87:055.412:291.812:380.15:557:34Waxing Gibbous6Fri
7Sat7:014.77:355.81:241.11:160.45:557:34Waxing Gibbous7Sat
8Sun7:544.68:046.12:100.41:480.75:547:35Waxing Gibbous8Sun
9Mon8:414.48:306.32:500.02:171.15:537:36Waxing Gibbous9Mon
10Tue9:244.38:576.43:27-0.42:441.45:527:37Full Moon10Tue
11Wed10:054.19:226.34:02-0.63:101.85:517:37Full Moon11Wed
12Thu10:463.99:496.24:36-0.63:352.05:517:38Full Moon12Thu
13Fri11:293.710:166.15:12-0.64:002.35:507:39Full Moon13Fri
14Sat12:173.55:50-0.44:242.55:497:40Waning Gibbous14Sat
15Sun1:123.46:33-0.14:492.75:497:40Waning Gibbous15Sun
16Mon2:183.37:210.15:172.95:487:41Waning Gibbous16Mon
17Tue3:413.48:140.36:133.15:477:42Waning Gibbous17Tue
18Wed12:484.84:523.79:120.58:243.35:477:42Third Quarter18Wed
19Thu2:034.45:264.010:100.610:293.05:467:43Third Quarter19Thu
20Fri3:384.25:524.511:000.711:472.45:467:44Third Quarter20Fri
21Sat5:044.16:185.011:410.85:457:44Third Quarter21Sat
22Sun6:134.16:465.512:411.612:191.05:447:45Waning Crescent22Sun
23Mon7:144.17:166.11:290.812:551.25:447:46Waning Crescent23Mon
24Tue8:114.27:506.72:14-0.11:321.45:447:46Waning Crescent24Tue
25Wed9:054.28:277.12:59-0.82:111.65:437:47New Moon25Wed
26Thu9:574.29:087.43:45-1.32:521.85:437:48New Moon26Thu
27Fri10:504.29:517.44:32-1.63:362.05:427:48New Moon27Fri
28Sat11:474.110:387.35:22-1.74:222.25:427:49Waxing Crescent28Sat
29Sun12:474.06:15-1.65:162.45:427:50Waxing Crescent29Sun
30Mon1:494.07:09-1.26:212.65:417:50Waxing Crescent30Mon
31Tue12:296.32:534.28:06-0.87:402.75:417:51Waxing 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 6:30 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 spring phase. Tonight's moon is 91% 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 Gibbous (91% 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