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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 5h 07m at 7:48 pm (2.6 ft)
Next high tide (tomorrow) : 1:12 am (4.6 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Jul 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:364.84:165.39:270.510:401.95:448:00First Quarter1Thu
2Fri4:044.35:125.710:260.95:458:00First Quarter2Fri
3Sat5:334.16:026.112:011.311:25 AM1.35:458:00Waxing Gibbous3Sat
4Sun6:514.16:496.51:060.612:201.55:458:00Waxing Gibbous4Sun
5Mon7:574.27:336.82:01-0.11:111.75:468:00Waxing Gibbous5Mon
6Tue8:524.38:167.02:49-0.61:591.85:467:59Waxing Gibbous6Tue
7Wed9:394.48:567.03:31-0.92:451.95:477:59Full Moon7Wed
8Thu10:214.59:357.04:11-1.03:272.05:477:59Full Moon8Thu
9Fri11:024.510:126.74:49-0.94:072.15:487:59Full Moon9Fri
10Sat11:424.510:496.45:25-0.74:462.25:487:59Full Moon10Sat
11Sun12:224.56:01-0.45:262.35:497:58Waning Gibbous11Sun
12Mon1:034.56:37-0.16:102.45:507:58Waning Gibbous12Mon
13Tue12:035.51:454.57:120.37:012.65:507:58Waning Gibbous13Tue
14Wed12:445.02:314.57:490.88:042.75:517:57Waning Gibbous14Wed
15Thu1:334.43:214.68:281.29:282.65:517:57Third Quarter15Thu
16Fri2:423.84:154.89:141.611:052.35:527:56Third Quarter16Fri
17Sat4:193.55:065.010:092.05:537:56Third Quarter17Sat
18Sun5:543.45:515.412:191.811:08 AM2.25:537:55Third Quarter18Sun
19Mon7:073.66:335.81:121.212:022.35:547:55Waning Crescent19Mon
20Tue8:013.87:136.21:550.612:522.35:547:54Waning Crescent20Tue
21Wed8:444.17:536.62:340.01:382.25:557:54Waning Crescent21Wed
22Thu9:224.38:336.93:11-0.42:232.15:567:53New Moon22Thu
23Fri10:004.69:137.23:48-0.83:062.05:567:53New Moon23Fri
24Sat10:384.79:557.24:26-1.03:501.85:577:52New Moon24Sat
25Sun11:184.910:387.15:04-1.14:361.75:587:52New Moon25Sun
26Mon12:005.05:44-0.95:261.75:587:51Waxing Crescent26Mon
27Tue12:465.26:25-0.66:231.85:597:50Waxing Crescent27Tue
28Wed12:166.11:345.37:08-0.17:281.86:007:49Waxing Crescent28Wed
29Thu1:155.42:285.47:530.58:471.86:007:49First Quarter29Thu
30Fri2:264.63:295.68:451.110:211.56:017:48First Quarter30Fri
31Sat3:574.04:345.89:471.711:501.06:027:47First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410152)

Common Questions About National City, San Diego Bay, CA Tides

Show All
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 10:30 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 transitional phase. Tonight's moon is 71% 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 Waning Gibbous (71% 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